Bravo I FS

Big four strokes are back as a viable power option for bass boats.
The new Pro Finish Bravo I FS prop was developed for four stroke outboard applications.

I can’t wait for the 2012 Miami Boat Show. I’m looking forward to seeing old friends and talking props with boaters, boat builders, dealers, consumers and racers. We’re geared up to have another big show. Fred Kiekhaefer has another exciting new product to unveil and I have a couple of new things to show as well. In fact, I just couldn’t wait any longer to talk about our new outboard prop.

You may recall my post regarding the Bravo I XS. We took the proven Bravo One sterndrive prop, added big one-inch vent holes in the hub and did some other tweaks to make it a big performer on low-emissions OptiMax outboards.

Four strokes are a popular power option for center console bay boats and larger flats boats.
Mercury's Pro FourStroke outboards created a resurgnece of interest in four stroke power.

While working the BASS Masters Classic last year, it was apparent large four-stroke outboards are coming back to bass boats. From there, I did additional research and found this trend happening in most fresh and saltwater markets as well. Four-strokes are being used on walleye, flats and a new line of bay boats. Mercury’s new Pro FourStroke outboards had a lot to do with this trend, I’m sure. The new engines run great. All that was needed was a prop designed to enhance performance for the various applications. The logical thing to do was start with the performance assets of the Bravo I XS and transfer those over to a prop designed for four-strokes.

The Pro Finish Bravo I FS is designed for use on 150 h.p. to 350 h.p. four-stroke outboards including Mercury Verado, Mercury Pro FourStroke and non-Mercury engines. The right-hand and left-hand rotation, 15.25-inch diameter Bravo I FS is available in the following pitch ranges: 22, 23, 24, 25, 26, 27, 28, 29, 30, and 31 inches.

I have some of these out in the field and initial reports are very positive. I’ll post test results as soon as I get them. In the mean time, if you are going to the show, please stop by and visit with us in the Mercury booth, M-96, in the Miami Beach Convention Center. I’ll show you the new Bravo I FS in person.


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202 thoughts on “Bravo I FS”

  1. Would love to test this prop on my 18 Sterling. When will they be available? I’m running a 21 tempest and 21 trophy plus now.

    1. A lot of people are interested in this new version Bravo I FS for their four stroke outboards. The beauty of this prop is it allows you to move up 1″ of pitch – hitting the same RPM compared to your Trophy and Tempest. The Bravo I, having a larger diameter than your two props, typically allows you to move the engine higher; make sure you have adequate water pressure. Bottom line, if the boat is set up for a light load, the Trophy will be a little faster at wide open throttle, but if you’re running a heavy load and need some throttle-kicking planing performance, nothing beats the Bravo I FS.

      1. Good evening Scott,
        I hear you are the man when it comes to props.
        I am looking for a prop for my 2013 Ranger 621/250 pro xs.

        I hear the bravo 1 or Bravo 1 xs is the way to go.

        what pitch?? what about a labbed prop.

        thanks so much for your help

        1. Hi Scott,
          Thanks for the question. The Bravo I XS is ideal for walleye boats. The 620 with 250 Pro XS uses the 22″ pitch for a heavy load and 23″ pitch for the lighter loads. The 621 will probably use the 22″ pitch but, if you’re running heavy, the 22″ pitch might not give you enough RPM.
          The Lab Finished Bravo I will provide another 100 RPM over the XS version; check out the performance difference between the two on Mercury Racing’s Walleye Prop blog. We have back to back testing done with the 620 and 250 Pro XS.
          Good fishing!

          1. Scott, Thanks so much for the info.
            One more question>>>>>

            What is the difference between the Bravo 1 XS and the FS.

            Thanks so much

          2. Hi Scott,

            Only difference is the Bravo I XS has four 1″ vent holes designed for use with low-emissions 2-stroke OptiMax outboards. Exhaust blows through the vent holes, allowing the engine to turn a higher RPM for enhanced power and planing performance.

            All the best,

          3. Scott, Sorry for all the questions but….. I have another.

            Will the 300 opti hold up to tournament fishing????


          4. The only reason I ask is that my Ranger hasn’t been made yet and I am considering the 300 instead of the 250.

            Thanks so much.


        2. I have tried out all the Bravo 1 props. On a 2014 Ranger 620 with the 250 verado pro, best prop is a 23p braxo 1 XS. i tried the fs also but the xs has a better hole shot with no slip. The 24p is too much and the 22 is a little slower than the 23p. the 23p will pull 6250 rpm’s and 63mph (light). The 621 w 300 verado pro needs a 22p bravo 1 xs. runs 6200 rpm at 62 mph (light). All speeds are GPS of course. I work for a local marine dealer so I’ve been able to try out every prop on new rangers 600 series. The 24p bravo 1 xs works great on a 620 with the 250 pro xs. runs 6,000 rpm at 64 mph. Mercury says the fs bravo 1 are for the verados but the XS works better.

          1. Jordon,
            Thanks for the details. I agree. Vent holes play a big role in improving planing performance of both 2-stroke and 4-stroke outboards. The original Bravo I FS, from February 2012 to August 2013, did not come with Mercury’s patented PVS (Performance Vent System). We listened to our customers and enhanced the FS with PVS. The Bravo I FS is equipped with (4) PVS holes with (4) solid fittings installed. A set of large vent hole fittings are included so you can adjust the venting as needed. A Bravo I FS equipped with the solid PVS fittings sends engine exhaust through the propeller tube. This prevents exhaust flow around the blades during planing. Many 4-stroke outboard boats don’t require venting. Those that do will benefit from the PVS system. Venting is a balancing act. Not enough exhaust flowing into the blades can cause slower planing – while too much exhaust flow around the blades can cause the engine to over rev – blowing a hole in the water. The PVS vent holes in the Bravo I FS are .75” diameter. The Bravo I XS is equipped with large 1″ vent holes. The large vent holes in the XS help 2-stroke outboards rev up for a quick planing. In some cases, the XS provides too much venting for 4-strokes. The Bravo I FS with PVS is the solution for those applications. Thanks again for the data.

      2. Hi Scott! How much difference is there in a 22p Bravo 1 XS vs FS? And would I notice the difference? I’m running a 200hp Optimax(non xs) on a Tuffy 1890! Thanks

        1. Scott,
          The props are basically the same. The only difference is the additional venting. The Bravo I XS features (8) holes verses four (4) holes for the Bravo I FS. In many cases, the OptiMax can run the lower pitch Bravo I FS without any planing issues. As pitch increases, the OptiMax needs a little added venting for a great hole shot so the Bravo I XS would be the way to go.

  2. Hi Scott. I’ve run Merc props from the Trophy to the Pro and Lightning E.T.s and on and on but have never tried a Bravo 1 XS. I run a 2.5 liter Pro Max 225 on my Allison XB-21 2+2. Is this new Bravo 1 FS worth a try on a 2.5 liter 2-stroke motor or strictly built for the 4-strokes? I can turn a 28P Lightning E.T. up to 6900 RPM with a great hole shot. I can turn a 27P Tempest Plus with a great hole shot as well. What do you think? Thanks, Craig

    1. Thanks for your question, Craig. The Bravo I FS is designed for 4-strokes. The Bravo I FS and Bravo I XS are essentially the same propeller. The difference is the addition of one inch vent holes on the hub of the XS prop. Two stroke outboards do not produce bottom end torque like a 4-stroke and thus need RPM to gain power. The vent holes channel exhaust around the propeller. The exhaust causes the prop to cavitate until the 2-stroke gains enough horsepower and torque to grab the water and power the boat on plane. Take a look at my “Bravo for Outboards” blog. Allison owners contributed to the article. Have fun!

    1. Standard Bravo I props are cast in 2” pitch increments with a durable polished finish, thick blades with robust leading edges and a tremendous amount of cup on the trailing edge. The large diameter allows for higher drive heights. The flared exhaust tube aids planing performance along with stern lift. The larger blade cup on the standard Bravo I produces more bow lift than the Lab Finished version. The standard Bravo I is best for use on deep vee-bottom boats.

      The Lab Finished Bravo I is “zero balanced” (our words for perfectly balanced). It is available in 1” pitch increments. The sharp leading edges of the thinned blades slice efficiently through the water. Smaller blade cups increase engine speed by 150 rpm for every one inch pitch. The additional rpm enables you to increase the prop pitch by two inches and gain 2-3 mph top-end speed at the same rpm as the standard Bravo I. Lab Finished Bravos are available for sterndrives, 4-stroke outboards and 2-stroke outboards. Bravo I’s for 2-stroke outboards have 1” vent holes in the exhaust hub. The holes help bring the boat on plane by allowing the exhaust to flow out around the propeller blades. This causes slip thereby raising engine rpm, torque and horsepower for an enhanced hole shot. Outboard Bravo I’s are best for single engine applications requiring little bow lift and multi-engine applications where top speed is the goal.

      Pro Finish Bravo I’s are designed specifically for outboards. The Bravo I XS is for 2-strokes; the Bravo I FS (Four Stroke) is for 4-strokes. The blades are wedged to a specific gauge for a durable leading edge — not sharp like the Lab Finished models, but not as blunt as standard Bravos. XS and FS props are also zero balanced. Blades are kept thick for durability. The finish is high polish, great for saltwater areas. The exhaust tube flare is reduced to minimize stern lift. The back of the boat settles in for enhanced bow lift. Four stroke outboards inherently produce more low-end torque than 2-strokes, thus the exhaust tube vent holes are not needed on the Bravo I FS prop. The cup heights are lower, similar to the Lab Finished Bravo I. Both versions come in 1” pitch increments. Our Bravo I XS and FS props are used on single engine flats, bay, walleye, bass and go fast bass boats.

      1. Bravo 1 FS: I got a 2012 208 prov gl with 300 vrod. This boat will have a 4-5 second hole shot and hit 59-61 mph with 6150-6300 rpm, It is heavy when loaded and I also have a Rev 4 21p blue printed to try. Bravo gonna be faster than the Tempest? Also is it gonna beat the Rev 4?
        What you think?

        1. Your Lund 208 Pro-V GL with 300 Verado is a great rig. You’re getting some good numbers running the 21” pitch Tempest Plus. There is a good chance a 22″ pitch Bravo I FS (part number 8M0064450) will do better. The Bravo I FS will also offer a four second hole shot combined with impressive acceleration. Your top-end speed should improve by 1 to 2 mph. Customers are saying the Bravo I FS lifts the bow and stern, enhancing handling and overall ride. They especially appreciate the improved handling over rough water.

          It’s hard to say what kind of performance you’ll get with the Revolution 4. Blue printing is a generic term. One prop shop may modify a prop one way while another shop does something totally different. Both call it blue printed and both charge you for it.

          Keep it simple. The Bravo I FS provides hassle free performance right out of the box. The durable blades are perfectly balanced with matched leading and trailing edges. Consistency is key. If you were to damage your Bravo I FS, you have the comfort of knowing you will get a replacement prop that is identical in quality and performance.

  3. I run a 25 Trophy on a 2002 300X. The best speed on my 24 Progression low deck is 80.5 on GPS. Do you think the Bravo I XS would make an improvement.

    1. Mike,

      If you’re running the 1.75 gear ratio, I’ll say stick with the Trophy for the top speed. The Bravo I XS will be more of a work horse prop on your boat. For example, if you load the boat up with people and gear, the Bravo I XS will plane better and carry the boat better at mid range, but on the top I don’t think you’ll see any better speed. The Trophy is it for speed on your set up. Keep in mind, the Bravo I XS is designed for you to go up 1″ of pitch to equal the same RPM as your 25″ Trophy.

      Have fun on the water,


  4. Hello I have a 2012 Nitro Z8 250 Pro XS combo, currently running a 27 Tempest at 78gps 6000 rpm, slow hole shot, Fury 26 at 78 6100 rpm better hole shot but doesn’t lift good with 2 people,12 inches of setback motor set at 3.25 bp, also tried a 27 Trophy at 5800 rpm 77.1 gps, hole shot and handling good, would a 28 Bravo I XS improve my top end and hole shot? I HAVE HIT 79 WITH THE FIRST 2 props,my typical loads are 13 rods, 50 lbs. tackle 40 gallons gas, livewells empty. Very interested in the Bravo I XS.

    1. Samuel,
      Thanks for asking about the Bravo I XS propeller. The 3-blade Tempest and Fury will be the faster props for your Nitro under a light load. The 28″ Bravo I XS would enhance hole shot and increase top-end speed by 1-2 mph under a heavy load and will spin comparable RPM as the Tempest.

    1. Samuel,
      Mercury Propellers offers the Demo Prop program to authorized Mercury dealers. It’s up to the individual dealers if they want to participate.
      If your Mercury dealer has any questions about the Bravo I XS or FS propeller lines, send me their name and number. I can contact them or have them call me at 920-924-2037.

      1. Hello SCOTT I spoke to You on this blog back in June 18 2012 about my 2012 Z8 250 Pro XS. I asked you about the Bravo 1 XS, well I finally broke down and got one, I had posted my original results with the Tempest and Fury, well the results for the 28XS has a slight bog off of idle than prop shoots to 4000 rpm, now shes pulling hard out of the hole like never before, handles like on rails tremendous stern lift with so much bow lift I can’t even use it all. Top end 78.14 gps at 5950 rpm about 50 RPM less than the 27 Tempest. Test conditions were 77 degrees mild chop, 14 rods 3/4 fuel 60 lbs tackle. We ran it with livewells full 45 gallons, holeshot still good unbelievable stern and bow lift top end 75.5 76 gps. Raised motor 1/2 inch over Tempest which was at 3.25 kept going up but boat back end was just so much out of water didn’t want to take chance going any higher. Water pressure 25lbs. Very pleased with prop just maybe wondering if the 27 would be any faster on top end with more rpm? I would like to see 6100 by myself may be 5950 with livewells full. What do you think on the 27xs or stay where I’m at? The Tempest is now a backup prop. Props that I’ve tried are 27 Tempest, 26 Fury (won’t carry a load), 26, 27 and 28 Trophy. This boat,likes the big diameter props. Now about that Pro Max??? I have 14 days in which to send this prop back and exchange pitch let me know your thoughts, always available to try props if you need.

        1. Samuel,

          Thanks for all the information. Cool stuff. If you try a 27″ pitch Bravo I XS, expect a 150 RPM gain but the speed should drop 1 MPH with a light or heavy load. Pro Max was designed for lighter loads. I’m honestly not sure what to expect with a heavy and or fully loaded Z8. I’d put my money on the Bravo I XS for your rig. But, like all props, The Pro Max may surprise us. It may prove to shine in applications in which it was not originally intended for. Time will tell.


          1. Thanks for the reply. I gotta say this prop really has woke up this boat, even though it hasn’t outrun the Tempest, it is more consistent and really handles. I am gonna stick with the 28. My only concern is the slight bog. The other props didn’t do this. I still have some more jack plate moving around to do. I think I will surpass the Tempest for all out top speed. This is a great prop and your asseseement on the rpm at 5950 was spot on. Don’t know if it would be possible to run a Pro Max for testing purposes. I would like to, just can’t afford buying one right now. THANKS SAMUEL P BLANCHARD

          2. Hell Samuel:

            Scott is out of the office this week. He will reply to your message upon his return next week.


  5. I have a Triton 18XS 2011 with a Mercury Verado 200hp (4 cylinder) with a Revolution 4 23″ pitch, with 3 people, full gas and fishing gear, going rpm max 5900 and 57mph, 6 second hole shot, what is your recomendetion for going 62 mph? Is this propeller Bravo I FS possible, what is your recomendation?

    1. Jose,
      Hitting 5900 RPM at 57 MPH with a fully loaded boat reveals a slip of 8%. To get this low of slip tells us your set up is running very efficiently. The 62 mark doesn’t look possible with a heavy load. If you were looking for a quicker hole shot, the 21″ pitch prop would be the choice; however, your top-end speed would fall from 57 to 54.5 mph – not the direction you want to go.
      Your performance looks really good, I think you should stick with the 23″ pitch Revolution 4.

        1. Jose, the Bravo I FS allows you to move up one inch of pitch compared to the Rev 4. The 22″ pitch Bravo I FS should provide an additional 300 RPM which should enhance hole shots with the heavier loads. However, your top-end speed will drop by 1 to 1-1/2 MPH due to the lower pitch. The 23″ pitch Bravo I FS should increase your engine speed by 150 RPM to 6050 RPM, matching your existing speed. If you’re okay with 5900 RPM, moving up to the 24″ pitch Bravo I FS could get you an additional 1-1-1/2 MPH.

          Have fun.

  6. Hi Scott,

    I have a 2012 250 Pro XS on a 521VX Ranger bass boat with 8″ hydraulic setback. I am still breaking it in but hole shot and mid range seems great with a 26 Fury. I am looking for advice on a good rough water propeller. Maximus, High Five, Bravo XS? Any idea on which I should try? I want decent top end but more worried about handling in big water.

    1. Hi Jon, good question about rough water props. You can go with either the 25″ pitch High Five or the 26″ or 27″ pitch Bravo I XS. The 27″ depends on where your RPM tops out with the 26″ Fury. Pass on the Maximus, it’s geared toward sterndrives. If you have two power poles and a great deal of gear in front, the 25″ High Five will most likely offer the best planing performance and good boat control. Expect your top speed to drop 4 to 5 mph along with the engine bumping the rev limiter. The Bravo I XS will also offer great planing and boat control. It is especially good for holding the boat on plane at slower speeds; Your Ranger with the Bravo I XS will typically drop 1 1/2 to 2 mph compared to the Fury but in rough or big water that’s not what matters most.

      Good fishing

      1. Great info! Thanks Scott.
        One more question, does a 26P High Five exist that will fit on a 1.25″ shaft Torquemaster L/U? Seems like that would be the ideal prop for me. I will look into the Bravo1 XS though.

        1. Jon,

          It would be a good prop for your set up but unfortunately Mercury does not offer a big barrel 26″ pitch HighFive.

          1. Thanks again Scott. Going to look into the Bravo XS. Break in is now done. Looking forward to running it on Saturday!

  7. I have a 21 Triton HP Elite with 250 Pro Four stroke. What prop do you recommend for this boat and prop shaft height below pad.

    1. Bennie,

      Can you offer details of what you’re currently running, i.e. prop style (Fury, Tempest etc…), pitch size, engine RPM and speed at wide open throttle?



  8. I have a 2012 Triton 21 hp Elite with a 250 Pro Four Stroke. Can you steer me on what pitch prop I need on this rig? I have a 25″ Tempest Plus on it and the top end is 73 MPH at 6100 RPM. Holeshot is not good at all. Boat has a three-inch slidemaster plate on it.


    1. Bennie,

      Your top-end speed looks good. The slip numbers are low which indicates the prop is hooking up well. Your hole shot can improve with a couple of options. The first option is moving down to a 24″ pitch Tempest Plus. Running a lower pitch Tempest will give you a better hole shot. However, because of the lower pitch size, you could see up to a 1.5 MPH drop in top-end speed. The 25″ pitch Bravo I FS another option. This prop will also enhance your hole shot and, with a 150 RPM increase in engine speed, you should be able to get the top-end speed numbers you get with the 24″ pitch Tempest. I’m curious as to why your boat wasn’t packaged with the 24″ pitch Fury. The Fury typically offers a better hole shot than the Tempest because of it’s 14″ diameter. Perhaps the boat builder chose the Tempest for its bow lifting characteristics. Have you tried a Fury prop on your boat?


  9. Hi Scott,

    I hope you are well.

    I have a classic 1985 model Phantom 25 offshore hull from UK with a Verado 350 sci. Its a great package 🙂 I had a Promax 300 earlier on spinning a Tempest A45 25 picth prop 6,100 rpms and 75-76 mph on a good day. I then swopped to twin Merc 2.5 EFI SS engines, getting 86-87 mph at 7,500 rpms with Mirage Plus 25 props.

    I have testet the A45 Tempest 25 and only got 78 mph at 6,400 rpms. I checked out the Mirage Plus, and got the same. I then testet the Rev4 25 and got 79,8 mph at 6,500 rpms. A local propshop cut down the exhaust tube, and I know consistently get 81 mph at 6,500 rpms. Best speed has been 82 mph at 6,600 rpms. 79 mph with 4 people and 2/3 full tank. Amazing. 4,65 MPG at 49 mph!

    The Rev4 loose grip / bite when jacket up. I have lots of waterpressure, and wonder if the Brovo FS 26 pitch will be a good alternative? I am sure I can jack the engine 0,5-1 inch further up than now.

    Have a wonderful summer.

    All the best, Toffen Gunnufsen, Lillesand, Norway

    1. Toffen,

      Good to hear from you. Your Phantom 25 looks like a fun performance boat. The Revolution 4 25″ pitch is offering some impressive top speeds with your 350 Verado. Not sure if you can beat the Revolution 4. Some boats run better with the Revolution 4 because of its tip cup. Bravo I has less cup at the tip compared to a Revolution 4; typically the less cup is a faster style. If you have an opportunity to run a Bravo I FS, I would recommend 27″ over 26″ pitch. The engine RPM may drop to 6350, but running the added pitch can offer another 1 to 2 mph.

      Have fun!

  10. Hi,

    Thanks for superswift reply.

    The Rev4 free’s up the hull much more than I have experienced with another prop. And I can run wot almost with no positive trim due to the prop high rake. The boat normally needs positive trim since its a classic no step design. It runs very high and flat. With the 350 sci and Rev4 it runs on the tale 🙂 I will play around with props, and will try to get hold of a 27 Bravo I FS. Cruise should be better too!

    Cheers, Toffen

  11. I am interested in a Rev 4, how would this run on this rig and would a 25p rev 4 be the ticket vs the 27 Tempest. How does the Rev 4 compare against the Bravo 1 XS?

    1. Samuel,

      The performance difference between the Revolution 4 and Bravo I XS or FS can depend on the boat and set up. The Bravo I XS and FS are designed to move up at least 1″ of pitch in comparison to the Rev 4 or other similar size props. in some cases, you might be able to move up 2″ of pitch depending on your engine speed RPM. Even with higher pitch, the Bravo I XS and FS props will provide similar planing speeds, enhanced fuel economy and improved top-end speed. To help answer your first question, please reply with the make and model of your rig, the style and pitch of prop you are using, your engine speed RPM and boat speed at cruise and wide open throttle. I’ll review the data and let you know if you can expect any improvement.


      1. 2012 nitro z8 250 pro xs 27 tempest 12″ setback 3.25 below pad in the 90 heat gps now 77 at 5950. cooler weather have seen 79 at 6100, slow holeshot good handling ,good bow lift, 26 fury better holeshot 6100 rpm 76-77gps 3.25 bp, no bowlift loaded saw best of 79 once typical load is 35-40 gal fuel 13 rods, 50lb tackle alos tried 27 trophy 77mph 5800 rpm and 26 tro4 6000rpm 77gps the 4 blds were tried when weather was cooler dont no what they would run now with as hot as it is now. i like the tempest but is really slow on takeoff. this boat i feel craves the larger diameter props, it is bow heavy, wasnt impressed with the small dia 4 blades what would be the recommendation in pitch for a rev 4 25?, bravo 1 xs 28? would a stern lifting prop aid this boat in speed , i have worn out the jackplate moving it but 3.25 is where every prop ran the best. thanks

        1. Samuel,

          Thanks for sending your test information. Typically, the Tempest will offer more bow lift than the Fury. In some cases, the planing performance of the Tempest can be improved by removing one of the large PVS fittings. This increases the amount of exhaust flow around the propeller blades, enhancing the engine RPM for additional planing power. The Fury provides quick planing due to it’s 14” diameter. It’s interesting you can reach 6100 RPM with the 26” pitch Fury. Usually, the engine RPM would equal the RPM of the 27” pitch Tempest. Consider running the 27” pitch Fury. You could expect to hit 77-78 MPH at 5950 RPM. The Revolution 4 is not the prop for your boat. The tallest pitch available is 25″, way too low for your application. The 28″ pitch Bravo I XS should get you to 5950 RPM, but I’m not certain in a light load you’ll see any better top speed numbers. With your boat, I’m thinking the Bravo I XS would work best under heavy loads.


    1. Dennis,

      You’ll really enjoy the performance of your Pro Verado with the 4 blade Bravo I FS. The hole shot will be just what your looking for… quick, even under a heavy load. The Bravo I FS enables you to move up one inch of pitch to equal the same engine operating RPM you get with the 21″ Tempest. The increase in pitch results with an enhanced fuel economy and an increase in top-end speeds under heavy loads.
      Have fun,


    1. Hi Dennis,

      I hope you get one. You’ll be impressed. Let me know who your Mercury Dealer is and I will forward them information on the Bravo I FS.



    1. Hi Dennis,

      I’ve contacted the Boat Farm and provided them information on the Bravo I FS along with the Bravo I XS.



    1. Hi Dennis,

      Thanks for sending your RPM and speed information. The numbers look pretty good with a full load. How did you like your Bravo I FS?

      In the same weather, wind and full load conditions, how did the Bravo I FS planing performance, ride, boat control and top speed compare to the Tempest?


  12. Scott. Overall I like the Bravo I FS. The boat planes better, more stable in rough water. I think a smoother ride. Better boat control, the bow stays down better in rough water compared to the Tempest. Top speed is comparable to Tempest.

  13. running a 36′ yellowfin with trip verado 300s and 1:85 gear ratio. Running 23 pitch Mirage Plus props. What size would you suggest with the Bravo FS? I had cup added to the center prop to be even with the RPMs on the outside engines.

    1. Thanks for the pitch question. What are you doing for RPM and GPS speed at mid-range or cruise? Also, what is your speed at WOT or 6300 RPM? We do offer the Bravo I FS in left and right hand rotation. part numbers are listed on the Mercury Racing propeller site under Bravo I FS.

    1. Thanks for your performance data. It appears your set up could benefit with Bravo I FS props. After reviewing your RPM and speeds, the slip is relatively high until you’re at 6300 RPM Wide Open Throttle (WOT); 64.5 mph. At WOT, most boats are at their optimal performance based on the builders boat bottom design. In regard to pitch, you would need to move up one inch of pitch with your Mirage prop to achieve similar engine RPM. Your comment regarding the center prop having been adjusted with added cup tells me it’s acting like a 24″ pitch Mirage (if we made one). Bottom line, I would recommend the 24″ Bravo I FS for the outside motors and a 25″ for the center motor.

      You can expect an average increase of 1 to 2.5 mph across your engine operating RPM range. The added blade should reduce the amount of propeller slip, resulting in greater efficiency. The shorter exhaust tube should provide the correct balancing point to enable the entire boat to be lifted for maximum hull efficiency.

      1. thanks…have two of the 3 props – waiting on the 3rd – they seem to be in high demand. I went with three 24″ pitch and if I spin the center more than 300rpm than the outsides I’ll move up to a 25″. There’s another guy with my same boat who is going to order them if mine work out. Thanks for your help

  14. Hi Scott,

    I have a 2012 Lund 2075 Tiller c/w a 250 Vrod Pro.

    Tempest 21 Runs – 59 MPH @ 6150 RPM,
    Rev 4 Runs – 58 MPH @ 6300 RPM, good rough water performance, stable

    Would the Bravo I FS provide Tempest speed and Rev4 Stablity? Could I get enought RPM with a 22 Bravo I FS? I’m might add a 3″ setback jackplate. Any thoughts on the value of a jackplate for this set-up?

    Thanks for the help.


    Bob R.

    1. Bob,

      Great set up with the tiller. You’ve provided good information to answer your question. Yes. The Bravo I XS would offer you the best of both; speeds similar to what you get with the Tempest and the stability/control like the Rev 4. The Bravo I XS is designed so you move up 1″ of pitch to achieve the same RPM as the 21″ pitch Tempest. The 22″ Bravo I XS at 6150 should offer the same speed as the Tempest. You will enjoy a much better hole shot and enhanced control. The Bravo I XS does like to run a little higher than the standard setting. Guys running with jack plates average 3/4″ higher and pick up another 1 mph.

      Have fun,

      1. Hi Scott,

        Thanks for the info. I’m a little confused, I have a 250HP Verado Pro. Why are you recommending the Bravo I XS vs the Bravo I FS?

        Thanks for the help.

        Bob R.

        1. My mistake, it should have been the FS version for your four stroke. Thanks for the catch, this helps keep it clear for the rest of the readers.

  15. Hi Scott,

    I have a 2011 Nitro Z8 with a 200 Pro XS. I’m 3.25 below pad, 5900 RPM’s, 65.2 MPH. I would like to get more top end speed. Would a lab finished Bravo I XS help?

    Shane H

    1. Shane,

      Thanks for the information. This helps us understand how well your prop is hooking up. There is a fair amount of slip with your set up. Let’s look at what might cause the higher slip. Is a leading edge of one or more blades damaged? Is there too much weight up front; preventing the Fury to lift the bow? With the Fury’s smaller 14″ diameter size, some applications benefit by running the prop a little deeper in the water. Here, bow lift is enhanced and thus overall performance is improved. Is the 3.25″ measurement from the bottom of the boat to the center of the prop shaft? Did you find that being your best performing height?

      The Tempest or Fury should offer the best top speed (three blades will offer more bow lift) for light loads. Like you and many others, running heavy is how we fish and the Bravo I XS works well for these heavy loads. The Bravo I XS lifts the bow and stern equally, reducing drag for greater top end speeds. Your engine height is a good start for running a 25″ pitch Bravo I XS. I’m optimistic you’ll see up to a 1.5 mph increase under heavy loads with the XS.


      1. Thanks Scott for your reply. 1st question: The prop on the leading edges look good. 2nd question: I have 12 Plano boxes, 5 rods, and two life jackets in the front of the boat. So I don’t have alot of weight. 3rd question: I measured the boat pad the following way. I first put a 4-ft level under the boat and center of the running pad. I then had my wife go up or down with the trailer jack until the running pad was level. I then lowered the the outboard with a bullet level on the lower unit until it was level. I used my 4-ft level as a straight edge, running it from the pad past the lower unit, I measured from the level edge to the center on the nose cone. The factory set my motor at 3″ below pad. At this setting i got 62.3 MPH. I went up a 1/4″ inch ( 2-3/4″ ) hole shot was good still 62.3. I went up 1/ 4″ more ( 2-1/2″ ) with the same 62.3 MPH. I then went 1/4″ below factory setting ( 3-1/4″ ) and got 65.2 MPH. I then went down 1/4″ more to ( 3-1/2″ ) speed dropped back down to 62.3 MPH. I did not go down any more. I set the motor height at 3-1/4″ below pad. The boat runs flat at all those settings. The bow never lifts high.

        1. Shane,

          Okay, so you have a good prop, little weight in the bow, and you’ve figured out the right engine height with the Fury. Thanks for listing the factory setting and what happens to your performance at the various heights. Your information is helpful for others to understand the dynamics between engine height and prop styles and how 1/4″ movement in engine height can affect overall boat performance. The 3″ factory setting might work better with a Tempest Plus due to 14-5/8″ diameter and the amount of cup wrapped around the blade tips. The Bravo I XS is larger than the Tempest so I would recommend you adjust your engine height in 1/4″ increments for peak performance. Earlier I recommended a 25″ pitch Bravo I XS. It’s a hard call but you might be able to run a 26″ pitch. The Fury’s run tall in pitch compared to the Tempest Plus so typically you move down 1″ of pitch when moving from a Tempest to the Fury. The Bravo I XS is designed to allow for a 1″ pitch increase when moving from a Tempest Plus to the Bravo I XS. So, if your running a 24″ Fury then you might be able to hit the same 5900 RPM with a 26″ Bravo I XS. Your optimal engine height might end up 1/2″ higher than the current height. This could also increase RPM. The 25″ pitch Bravo I XS will add 100 RPM over the 24″ pitch Fury. Nothing is black and white when it comes to propellers. Variables with boat design, weight, load displacement, engine HP, engine height, propeller style etc… all come into play. I’m hopeful this information is useful.

          All the best,


  16. Scott

    I have a 32′ Seavee with twin 275 Verados with 1.85 new style 5.44 gear cases running 19″ Rev 4 props. the boat has a great hole shot and decent midrange fuel economy. I run 40mph at 4900 rpm and top out at 56mph at 6350 rpm. Would i be able to run the Bravo 1 FS ? The boat rides really well with Rev 4 but I cant get the bow up much at all when trimming. Thoughts ??

    Best Regards


    1. Mike,

      The Rev 4 props hook up extremely well on Seavee’s. The cup wrapped around the trailing edge enhances their holding power. I’ve had some Mercury dealers contact me who have seen good results with the Bravo I FS on Seavees. Unfortunately, we don’t have any numbers to share with you. The Bravo I FS are limited to 22″ pitch. Even though you can move up one inch of pitch, The Bravo I FS will be too tall in pitch for your set up. The engine’s RPM will drop 200 to 300 at WOT, bringing the RPM toward the bottom end of your recommended engine operating range.



  17. Thanks Scott for the reply. One more question.If I was to have the prop brought down in pitch by you guys custom shop, would that work ? My real issue with Rev 4 is not being able to trim the bow up and lack of top-end performance.


    1. Mike,

      No need to modify the pitch. If you did, the props wouldn’t perform as well as they do today. What could work for your setup is shortened exhaust tubes, similar to what we do with the Bravo I FS. We shorten the tube for increased bow lift. The same can be done to the Revolution 4. In fact – we are considering releasing our own version of the Rev 4 featuring the shortened exhaust tube and a high polish Pro Finish. The Mercury Racing Pro Rev 4 will support applications in need of lower pitch props. If you are up for testing, I’d like to send you a set of 19″ Pro Rev 4s to compare with your 19″ stock Rev 4s. Let me know if you are interested. I will follow-up via your email.



      1. Scott,

        That would be great!! I would definitely be up for testing. I would think that maybe a 20″ pitch might be better in that application as I am right up there on RPM. If I can the trim bow up I would pick up some speed as well as higher RPM. Please email me info.

        Thank you.

        Mike P

  18. What prop would you recommend for a 22 Majek extreme with 200 VMAX 2 stroke
    Currently running a turbo 21 pitch. Not too impressed, but it came with the boat

    I typically run fully loaded as a weekend warrior

    1. Keith,

      Many of the Majek’s run a 3 blade. I’m wondering if it’s because the boat requires allot of bow lift. Three-blade props typically provide more bow lift than 4-bladers. Many of the Texas rigs have been running the Bravo I XS (for two strokes – featuring 1” vent holes in the exhaust tube) and the Bravo I FS for four strokes. The Bravo I XS lifts the complete boat (bow and stern) as well as providing awesome shallow water planing performance. Hard to say which pitch you should run. I’m thinking the 22″. We’ve incorporated some things in the design which enables you to move up one inch in pitch to achieve the same RPM at WOT as you experience with the stock prop.

      All the best,


      1. I have a 25′ Majek with an Etec 250 HO with a 20″ shaft. I’m running a 4-blade Cyclone 14×21. All I can get is 49 mph at 5500 rpm. Obviously the boat is not running at its full potential. Any suggestions?

        1. Leo,
          The Cyclone is offering 17% slip which seems a little high. Some 25′ Majek owners are using the Revolution 4 but I think a 21″ Bravo I FS would be the ticket. In the near future we will be offering the Bravo I FS in 20″ and 21″ pitch both left and right rotation. The prop will be featured at the Miami Boat Show and available March 1, 2014.

  19. Hi Scott, what prop would you recommend for a 22 foot Glasstream Center Console running a 2013 Verado 200? I plan on running the boat loaded most of the time. The boat weighs 2100 lbs without the motor and will be running about 40 gallons of fuel. People and gear will equal about 850 lbs.


    1. Ralph,

      To help answer your question, I need to know what Mercury prop you are currently running along with its pitch size. I also ask that you reply with your cruise RPM and speed as well as your wide open throttle RPM and speed.

      Mercury offers (2) four blade propellers for your set up; the Revolution 4 and the Bravo I FS. Some have said the Rev 4 is too much prop for your size boat and engine. The Bravo I FS may be the prop for you.


      1. Thanks Scott, unfortunately I don’t have any of that info right now. The Verado 200 was just delivered to Glasstream in Panama City on Wednesday. I have no idea at this point which prop they will be putting on it. When you say the Rev4 would be too much prop, what exactly does that mean.
        I’m more interested in top overall speed rather than holeshot or mid range power.

        1. Ralph,

          The Rev 4 is a very good prop. However, sometimes the long tube, big blade area and tall cup can produce too much stern lift and slow the boat down. It really depends on the boat/engine combination. Glasstream is really good about setting up their boats so not to worry.

          Enjoy your new boat.


  20. Hi Scott, I have a few questions. First off, I am running a 2013 620 Ranger with the 250 Pro Verado. I live in Colorado, home elevation 4500 ft. The boat came with a 19 Trophy. Great hole shot, but it would not even get the boat up on the pad and would easily over rev the motor. I have tried a 19 Tempest Plus, better top end (55 mph). However, with tournament load (live wells full), it felt like I was pulling a trash can out of the water on take off. That was with 1 PVS plug out. I also have tried a Rev 4 19. It resulted with 59 mph top end speeds, better holes shot (until the live wells are full) with all PVS plugs out. All props reach 6400 rpms here. At 5400 ft elevation, the Rev 4 reached 6300 rpms. Anyway, I am desperate for advice on hole shot. It is so slow with full loads that it is almost embarrassing. Would the BI FS be worth a try? It seems like I have room to spare on rpms at top end (loaded or empty). Any advice would be much appreciated. Thanks.

    1. Mike,
      Running the Verado 4 stroke offers an advantage over 2 strokes. Verados are typically good up to 7000′ before dropping down in pitch. The 2 strokes would have to drop 1″ of pitch for every 2000′ to achieve the same rpm. Rangers are usually shipped with the 21″ pitch Tempest. I’m thinking the 19″ pitch Trophy was installed with the thought the Verado would act like a 2 stroke. For heavy loads, some have switched to the Rev 4. The Tempest doesn’t carry the bow, resulting with a drop in speed. It also is not the best handling prop in big, rough water. The next choice of prop is the 19” pitch Rev 4. This prop offers a great hole shot and boat control, but top-end speed suffers. Now we have the 22″ Bravo I FS which offers the best of both; top end performance like the Tempest and hole shot with great boat control like the Rev 4. Depending upon your set up and engine height, a 22” BIFS would enable your engine to turn 6100 to 6200 rpm resulting in speeds in the 57.5 to 60 mph range. The Bravo I FS thrives under heavy loads.

  21. Hi there .. I have 35st contender with triple 300 verado, the boat came with rev4 23 all around
    My top end is 70.4 mph at 6140rpm on the center engine and 6050 on outsides engines. That was on light weight, 3 people and 40 gallons of fuel. What do you recommend me to go with? Bravo 1 22″ or 23″? By the way that numbers were getting on very high trimmed !!

    1. Rashed,
      You are running extremely efficient with the Rev 4 so you may not need to switch propellers. Typically, The Bravo I FS enables you to move up 1″ of pitch when compared to your current prop to achieve similar engine RPM. The Rev 4s are strong in pitch. Expect to pick up 75 to 100 rpm with a 24″ pitch Bravo I FS versus the 23″ Rev 4. The Bravo I FS, with pitch sizes in 1” increments, enables you to fine tune engine rpm for maximum performance and efficiency. You could end up running 24″ pitch props on the outside and a 25″ pitch prop on the center motor.

  22. Mike W

    Sounds weird that you cannot get a good hole shot with a 19 p Rev 4 on that rig. I have run a 19p on a 2012 620 with same motor and get awesome hole shot performance and similar results on top end. Even at elevation; wouldn’t expect drastic reduction in hole shot. What hole are you mounted in?

  23. Thank Scott .. I’m shooting for 6250-6300rpm in all engines, would it be good idea to cut for more 200-250 RPM, and shorten the barrel the 23 rev4? Those contender boats run very flat “the bow stays down” so to get speed, we need to bowlift.

    1. Rashed,
      Even when the boat is running flat, the hull is very efficient. Unfortunately, If you want to gain 200 to 300 rpm, you would have to drop down to the 21″ pitch Rev 4 – and there goes your speed. I don’t think you should consider shortening the barrel because your set up is running good.

      1. Hi Scott .. I tried the boat yesterday with 21″ rev4 on the sides, 6500rpm with light load ( 100 gallons and 2 normal guys ) .. With 23″ rev4 I was getting 6000-6050rpm , do you think I should stick with the 23″ with low rpm which is 6000rpm? I really would love to see something in between that can give me 6200-6300rpm

  24. Hi Scott,
    I bought a boat a few weeks ago in Austria. It is a sportboat 7 meters long with a mercury racing verado 350 SCI XL. The length overall is 7.80 meters and the boat is a Galia Sundeck 700.
    Our dealer sold me the engine with a revolution 4 stainless 15″ prop. The boats total weight is 3000 kg (pounds?) And now the problem. The guys here in europe have no idea at the moment, because max. speed is 70km/h and I think it is not ok for this engine.
    So please could you give us some help concerning the configuration.
    Thank you for your help !

    Best regards


    1. Kurt,
      Thanks for your speed data. I would also need to know your engine speed (RPM) at wide open throttle. Please also provide me with distance (in/cm) from the bottom of the keel to the bottom of the cavitation plate. Trim the motor so the cavitation plate is parallel with the bottom of the boat. Next, take a long straight edge (long enough to reach the gearcase) and hold it up to the bottom of the boat. Using a tape measure, measure the distance from the straight edge to the bottom of the cavitation plate.

  25. Scott,

    I have a 1986 custom built 32 foot Manta Racing offshore fishing boat with a 8ft beam 26 degree dead rise and a pair of Suzuki DF300’s mounted on a Stainless Marine engine bracket with the engines set at zero toe or neutral. The boat has a set of Mercury Racing K planes for trimming and the boat weighs around 10k to 11k pounds fully loaded. I run a set of Bravo 1 22 pitch propellers. My max engine Rpm with a medium load is 6000 to 6100 engine rpms with a top speed of 47 to 48 knots. The props give the boat a great mid range cruise, trim attitude with decent fuel economy and it handles quite well at 35 knots in 2-3ft seas. It is hooked up pretty good.

    So here is the problem. The stern lift is so good at WOT it will bury the nose of the boat and you can’t trim out of it. (No trim tab in it all) It won’t lift and fly at WOT. So I raised the engines one more hole and the boat lost 5 knots and gained 250 engine rpms but I was able to trim it out a little better. The prop slip was so bad though, running offshore the tachometers were all over the place, it just would not hook up. So I tried a set of Bravo 1 24 pitch props. This brought the speed back where it was with the original set-up. So I really didn’t seem to gain much by raising the engines. The extra pitch just seemed to make up for the prop slip.

    I feel like if I could get the stern of the boat to stay where it is at when I’m cruising with the 22 pitch Bravos in the original set-up I could pull a set of 24 pitch Bravo’s at WOT no problem with a good increase in top end speed. Which has lead me to your new Bravo FS 1 propeller. Any advice you can offer would be greatly appreciated.

    Thank you

    1. Robert,
      Thanks for your question. You’re not the only one with this issue. Many others run into the same situation with the stock Bravo I. It just produces too much stern lift. The Bravo I FS will benefit your set up by settling the back of the boat while also enhancing bow lift. You’ll see increased performance and fuel efficiency with the Bravo I FS. You won’t have to over trim to compensate for stern lift. At your original engine height, move from the stock 22″ to the Bravo I FS 23″ pitch. Enjoy.

  26. Hi Scott, sorry i forgot RPM. Max RPM is 6400. I will messure the things you need asap.
    I will contact you within the next 2 weeks.

    Thank you and best regards,


  27. Hi Scott,
    we measured the distance in cm as you asked for. From the lowest keel to the bottom of the cavitation plate are 2 cm. Hope you will have an good idea for me!

    Thank you and best regards,


    1. Kurt,
      If you measured only 2 cm (which is equal to .79″), it would appear the engine is very low in the water. Typically, a 60 mph boat with a height between the cavitation plate and bottom of the boat would be 3″ to 3.5″. What speeds are others getting with this boat with 300 HP or similar power?

  28. Hi Scott,

    there is a test in the european magazin boote from april. The same boat with an yamaha 250 hp
    DETX and a prop SST RH 3 x 15 3/4 ” x 13″ makes at 6000 RPM 66,2 km/h.

    Thank you and best regards,


  29. Thank you for the reply Scott. I have already ordered a set of Bravo FS 23’s. I’m can hardly wait to spin these new props. I will be more than happy to post the results so it might hopefully help other users.

    Have a Happy 4th of July.

    Robert M

    1. Robert,
      Thanks. I’m looking forward to your feedback.
      You and your family have a great 4th.

  30. Hi Scott,

    new details for my verado 350 sci.Engine is now 1 inch higher, but the cavitation plate is still under water (2 cm).Max rpm is now 6850 and i can reach 75 km/h.So what can i do for the next step and what prop ca ni use further.Now there is a rev 4 15″.

    Best regards,


  31. Hi Scott,

    the boat is actually in Austria, but I think the distance from the bottom of the cavitation plate to the very bottom of the boat is about 5cm at the moment.
    Is it possible to get the distance you are asking for from the technical details of the engine.
    I have an xl shaft.

    Thank you and best regards,


    1. Kurt,
      As a general rule, measuring 7.62 to 8.89 cm or 3″ to 3.5″ is the typical distance for a 60 mph boat. Having an engine mounted too low will enhance drag.

      1. Thank you Scott!

        We will set the engine another inch higher to check out a Mercury Rev 4 19″.
        You will get the info asap.

        Best regards,


  32. Scott

    We lowered the engines one hole back to my original setup, installed the new Bravo FS 23 pitch props like we talked about. The weather finally let up so we could make a short trip offshore (about 100 miles round trip) with a med to heavy load. 200 gallons of fuel, 600lbs of ice 3 grown men plus gear and one of the 50 gallon bait wells brimming with bait and water. Sea’s were 1-3 feet throughout the day.

    WOW I’m impressed!! The boat was hooked up all the way through the RPM range. The stern settled nicely at WOT the bow lifted and stayed up! Plus I was actually able to trim the bow up a little too. I picked up 3-4 tenths on the MPG across the board in my cruising range as well as top end speed compared to the stock 22 pitch Bravo Ones I was running before. The fuel improvement is big considering my average run distance one way offshore is 70-80 miles. These props will surely pay for themselves in a short period of time.

    Because I run a competitors brand of engines I choose not to post the actual GPH’s, RPM’s Speed & MPG’s unless Scott R gives me permission to do otherwise. (This is a Mercury Blog and I respect that) I appreciate the fact that Scott has even taken the time to answer my original post. The bottom line is the Bravo 1 FS is a winner and they work. They work extremely well in my application and it was money well spent for me. I doubt anyone would be disappointed if they were to try a set of these or even one in a single engine application.

    I would like thank you Scott and commend you and Mercury Racing on a outstanding job in the R&D on this prop you have a winner for sure.

    Robert M
    Largo Fl

  33. I have Triton 216 Fish Hunter with a Verado 300 Pro. Running a 23 Tempest plus. I really want a four blade. I heard you tested this rig?

    1. Joe,
      We just did a test with a local dealer The Boat Doc from Lomira, Wisconsin; read the performance results on the new “Bravo I FS Performance Update” blog. Bottom line… on a hot humid day the fully loaded 300 Verado/Triton with a Bravo I FS 24″ pitch hit 64.9 mph at 6050 RPM.

  34. Scott,
    thanks for the great information on the blog. Currently running a 225Verado on a Ranger 2050 Reata. I had to try your 22″ Bravo FS, I’ll post the results below. Looking for your recommendation on the modified Rev 4 19. The original Rev 4 has so much stern lift, the boat gets really light in the back.
    Tempest 21″ 58.0MPH light load – 6120RPM, 54 heavy load 5700-5800 RPM
    Tempest 19″ 58.9MPH light load – 6440RPM, 53 heavy load 5900 RPM

    Tempests have piles of bow lift, almost too much, not great in rough water, not great for water sports as the boat speed varies too much, especially at slow planning speeds

    Rev 4 19″ 56.0 MPH light load – 6150 RPM, 52-53 heavy load RPM 5850
    Lots of stern lift, not much top end, planning speed is good

    Bravo 1 FS 22″ 59.5MPH 6000RPM light load, 56.2MPH heavy load 5700-5800 RPM
    hole shot good but a little slower compared to the 19″ Rev 4, mid-range awesome, top end – see above :), rough water – haven’t run any better – but I think my RPMS are too low?

    All props are run with the motor in the top mounted position (hole #4), only the Tempest throws a little rooster tail. Cavitation plate is clear of the water at 40MPH and above.

    Would the Merc Racing 19″ Rev 4 address the Stern lift and perhaps give a little better heavy load performance? I’m in Oshkosh if you want test anything.

    Thank You.

    1. Awesome information, Doug. Thanks for sharing and educating the rest of the readers. You are seeing incredible speeds with the Bravo I FS. Your motor’s rating is 5800 to 6400 rpm. If you can maintain 5800 rpm under a heavy load, you’re good to go. The Bravo I FS does like to run a little higher than the Rev 4. I wish you had a manual jack plate to adjust the height. As of this week, the Bravo I FS is now equipped with PVS, the performance vent system. The Bravo I FS will have the solid fittings installed with a bag of large vent fittings included in the box. You’ll have the opportunity to adjust the venting for planing. The PVS will also benefit multi-engine center console boats that require some venting for enhanced hole-shot. The other area where the PVS will help is the 2013 Pro XS Opti motors running the Torque Master II gearcase. I would pass on the Lab Finished Revolution 4. That design is more geared for the center console market.

  35. I have a new early model 2014 ranger 621 with atlas 6″ jackplate, 300 verado pro and 21 tempest plus. With just myself, low fuel and normal gear I get decent holes shot and 64 mph. With 3 people and 1/2 fuel I get poor hole shot and only 58 mph. Would a 22 Bravo I FS get me better hole shot and get my top end back over 60 with a load? If so, Would my top end alsolbe as good as the 21 tempest with a light load (64 mph)?

    1. I forgot to mention; with a light load I am running about 6350 rpm. With 3 people on board I’m running about 6100 rpm.

    2. Allan,
      The 22 inch pitch Bravo I FS should give you a better hole shot with minimal bow lift in both light and heavy loads. You can expect to reach similar rpm at the current engine height. Consider raising the engine by .25″ increments at a time until you reach the sweet spot in performance (while maintaining adequate water pressure). You might find your engine ends up being .50″ to .75″ higher when running the Bravo I FS. Top speeds should be close to the Tempest under light loads. You should see higher high top-end speeds under load with the Bravo I FS. The 4-blade Bravo will also enhance rough water boat control and handling.

      1. Sounds Perfect. Thank you. Would there also be an advantage to getting the bravo “customized” by a prop shop, to get optimum proformance?

        1. Allan,
          The Bravo I FS has many features that differentiate it from a standard four blade. It is zero balanced. Leading edges of the blades are wedged and blade cup heights are adjusted and matched. In addition, the exhaust barrel has been shortened. All of these modifications work together to enhance overall boat performance. I’m not sure what else you’ll require. Bottom line – we want the props to be good right out of the box.

  36. I have a 2013 ranger 620 250 verado pro rev 4 21 pitch prop.The motor can go up one more hole.I get a bad hole shot,13 seconds or more with vents plugged.Best hole shot with 4 medium pvs plugs,7 seconds.I run 6220 rpm at 63 mph light load and 5880 rpm at 58 mph heavy load.I am not to concerned with the top speed, just a better hole shot and big wave control with a low plane speed. Would a rev 4 20 picth be better than the bravo 1 fs ,or maybe something else.

    1. Hi William,
      The (3) styles of props are the Tempest, Revolution 4 and Bravo I FS. Each has its unique characteristics. The Tempest isn’t what you’re looking for. It will produce great top end but it won’t offer the rest of what you really want in a prop. Running a lower pitch Revolution 4 should give you better throttle response. Many prefer the Bravo I FS over the Revolution 4 for its superior hole shot performance, slow speed boat control, acceleration response, ride ability and top speed. Although you may not need it for your application, the Bravo I FS now comes with Mercury’s Performance Vent system (PVS). Like the Revolution 4, you can fine-tune Bravo I FS venting as needed. The Bravo I FS runs a little light in pitch compared to some of our other Mercury propellers. You could see an rpm gain of 100 to 150 when comparing a 22″ pitch Bravo I FS with the 21″ pitch Revolution 4.
      Good fishing,

  37. I just got a 22 Bravo I FS, have not installed yet. What vent should I start out with on my ranger 621 w/300 pro Verado. Which gives you the best hole shot and which the best top end?

    1. Hi Allan,
      Thanks for asking the PVS question. A majority of the Verado single engine applications will use the Bravo I FS with the solid vent fittings (solid fittings already installed). Typically for a single Verado application the engine produces enough low end torque for quick planing. Larger heavier multiple engine applications may benefit by using the large open vent fittings or no fittings at all. If you want to experiment use a socket extension or deep well socket and tap the solid fitting into the propeller so you can reuse it.

    1. Jerry,
      Typically, the Tempest Plus is the prop of choice. The 23″ pitch is probably the size you’ll be using. The Fury isn’t an option (lowest pitch is 24″), Unfortunately, I don’t have any feedback from people running the Bravo I XS (not to say they aren’t). The Tempest is great for a light to medium loads. It’s with heavy loads where the Bravo I XS shines. You will realize enhanced hole shots and improved handling. The Bravo I XS lifts the entire boat (bow and stern) vs the 3-blade Tempest which lifts the bow only.

  38. I am considering getting a new prop for my Ranger Reata 210. It came with a yamaha 23-m which was not suited well at all. I purchaced a High Five skiing and it performs better than the 23-m in all situation but I feel it would be better with another prop. It will run about 56 mph (gps) at 5400 RPM on with a 23″ pitch High Five. I would like to keep low planing ability for tubing with Kids and improve the midrange fuel economy and a little extra speed would also be nice. What would you suggest a Bravo 1 FS or a Rev 4?

    1. Zac,
      I’d go with the Bravo I FS. Most Ranger owners, myself included, run the hybrid Bravo I. Not knowing your engine or its recommended rpm range, I would lean toward a 23″ pitch. Even though it is the same pitch, your engine should gain 100 to 150 rpm over the 23″ High Five. A 23″ pitch Rev 4 will drop 100+ rpm when compared to the High Five. Consider trying a 22″ pitch Rev 4 to achieve similar rpm you get with the 23″ pitch High Five. Look to a 21″ inch pitch if you are looking to gain in excess of 150 rpm. My money would be on the Bravo I FS. Have fun pulling the kids.

  39. Thank for you input the max RPM for my yamaha is 5500. So I probably would need to go with a 24″ pitch Bravo 1. How does the Bravo 1 FS compare with the Rev 4 on Midrange and top end? Thanks.

    1. The Bravo I FS 24″ in most cases will offer better mid-range cruise and top end speeds over a rpm matching 22″ pitch Rev 4. The Bravo I are a little light in pitch and the Rev 4 are heavy in pitch thus the 2″ pitch difference for matching the engine’s rpm. The Bravo I FS should also offer better acceleration because of the leading edge design allowing the prop to cut through the water instead of chopping (less efficient).
      Have fun

  40. Hi Scott,
    I wanted to give you some performance data on my 2012 Glasstream 273 Sport running twin Optimax 225 with 26 pitch Bravo 1 FS with PVS. My wife and I were in the Keys early October and I was shocked at the difference from my 24 pitch Bravo 1’s. Max rpm with Bravo 1 24′ s was right at 5400 rpm with a speed of 64.7 mph. With the Bravo 1 FS with PVS we hit the same rpm (5400) but top speed jumped to 68.9. But wait, it gets better. On our third day there we were heading east about 2 miles offshore in the Atlantic around Duck Key with 17 to 22 knot head winds and were able to hit 71.9 on the GPS. Yes, we were heading into the wind. I think the headwind planted the boat in the water and eliminated some slip allowing the props to hook up better which is why we saw the increase in speed. I also wanted to mention that without the headwind, if I trimmed the engines too much, the boat would chine walk from port to starboard causing me to throttle down. In my opinion if I didn’t have to throttle down due to chine walk I would have likely seen more speed. What are your thoughts on this?

    Since then I have lowered the engines 1 hole, as the ventilation plate was approx 2 inches out of the water., and will be heading back down to the keys Dec 20th to Jan 4th for some more testing. I will let you know the results when I return to Atlanta. I also wanted to know your thoughts about using the Pro Max prop with this setup. Good idea or bad, please explain. Is the Bravo 1 FS 26 with PVS the best prop for my set up, or do you have other ideas?

    Your help is always appreciated!!

    1. Robbie,
      Thanks for sending us your incredible performance results. Wow! Advancing from 64.7 to 68.9 and 71.9 mph. It’s like driving a new boat!
      The chine walk won’t go away unless you do some changes to the hull. You’re basically maxing it’s performance. Lowering the motors may diminish chine walk, but your top speed could suffer. Please report back after your next trip out.
      Have fun!

  41. Scott-
    Have a 2014 Lund 208 tyee on order comes
    From the factory with a 21 tempest. I would like to go to a 4 blade bravo 1 fs. Would this be a good combination? What speed/ RPM do you think I would see with the Bravo 1 fs vs the tempest? I usually am loaded with two kids and my wife not too much gear. Want a good hole shot for the most part. Thanks

    1. Hi Joe. With the 300 Verado Pro, I’d say the 22″ pitch Bravo I FS is the way to go. It is designed for 1″ pitch increase over the Tempest Plus. Although the 21″ Tempest Plus will be the fastest under a light load, the Bravo I FS will be two mph faster when boating with the family. You will enjoy enhanced fuel economy at mid-range cruise and the ability to stay on plane at slower speeds (a must for wake boarding). Minimal bow rise while planing (for improved vision while planing) is an added benefit appreciated by tow sports drivers.

  42. Scott, I have a new 2013 25′ majek extreme with a 250 etec ho. Motor came with a 20″ shaft and 14×18 cyclone prop. Great hole shot but top end speed was 46 mph @ 5800 rpm. What would prop would u recommend.

    1. Leo the Texan,
      I wish we offered a lower pitched Bravo I FS. The lowest is a 22″ pitch which, for your rig, is too much. It would be interesting to see how it would perform because a lot of E-TEC owners (Flats and Bass boats) are running the Bravo I FS.

  43. Scott,

    I have a 25′ Howard Bullet Sport Boat that has a 496HO in it. It will run 74mph @ 5100rpm unloaded with a 25″ Bravo 1 with the Lab finish. Would any of the new props help me with my top end speed over what I am currently getting?


    1. Troy,
      Your set up is awesome! Running the numbers – assuming you have a 1.5 gear ratio, the prop slip comes in at 8%. The low slip is telling…you can’t do any better than that. Stay with the 25″ Lab Bravo I.
      Have fun,

  44. Hi Scott I was referred to you by my brother as you helped him out a while back
    My question is I have a 2014 Lund 2075 tyee with a pro verado 250 hp on order. Doing some research Lund did a test with a 19 P tempest with 2 guys 40 gal of gas turning 6400 rpm they achieved 57.6 mph in the #2 mounting hole. Do you think this boat is capable of turning a Bravo 1 FS 22 P? And if so would you raise the engine to a higher hole? Thanks for your time

    1. Steve,
      The 22″ pitch Bravo I FS would achieve similar rpm to the 21″ pitch Tempest. It would be down 300 rpm compared to the 19″ pitch Tempest. Fortunately, you’re in luck! We just extended the Bravo I FS line by adding 20″ and 21″ pitch sizes. For your application, if you want the same rpm as the 19″ pitch Tempest, move up 1″ of pitch to the 20″ Bravo I FS.
      Have fun,

    1. Steve,
      Here you go. Part numbers are as follows:

      20″ pitch RH: 8M0090451; LH: 8M0090453
      21″ pitch RH: 8M0090455; LH: 8M0090457


  45. Ran a nitro zv21 walleye boat last week with a 300 pro vrod. It had a 22 bravo 1 I could only get 5730 rpm even with half tank of gas. I was told to try to raise motor up a hole . I did hear that there coming out with a bravo 1 21 pitch. Is there any truth to this?

    1. Paul,
      Assuming the motor is broke in; one thing to check is engine height. Last year during our Tracker testing, we ended up with the cavitation plate at 4″ to 4.25″ above the bottom of the boat. That was last year. Things may have changed. You’ll need to do your own testing. Since February we have been making and selling 20″ and 21″ Bravo I FS props. Part numbers for the 20” pitch right-hand are 8M0090451. The left-hand part number is 8M0090453. The right-hand 21” pitch is 8M0090455. The left-hand part number is 8M0090457. Unfortunately our web site takes forever to update.

  46. I have a yellowfin 24 bay with 300 vrod
    Wot 5800 rpm 61 mph with 21 pitch rev 4
    Would I get better numbers with a bravo 1 fs

    1. Troy,
      The Rev 4 works well with the Yellowfin. Your engine rpm is on the low side – but within the 5800 to 6400 rpm range. Some guys are running the Bravo I FS but I don’t have any comparison data to help support your decision. If you tried the 22″ B1FS, expect to gain 150 rpm over the Rev 4. Your speeds should increase 1.5 to 2 mph.

  47. I run a 2013 nitro z8 w 250 pro xs and tm lower unit. currently run a 25 fury @ 5850 fully loaded thats full fuel and 2 guys runnig 69mph. I have a 26 tempest running 5900 @ 69mph I have a hydraulic jack plate and have dialed each prop in to pad. I tried a 28 bravo 1 xs on my boat it would only turn 5650 @ 71 with full load. My question is what Bravo prop to try next? I sold the 28 because I felt like I was leaving rpms on the table. Your help is greatly appreciated. I think its funny some people call fully loaded a 1/2 tank of gas!

    1. Hey William,
      Thanks for the data. Your information helps others understand how pitch can vary with our propellers. To obtain similar (or close) engine rpm, the Bravo I XS requires moving up 1″ of pitch compared to the Tempest Plus and an increase of 2″ of pitch when compared to the Fury. using the Tempest as a benchmark, the Fury runs tall in pitch (move down 1″ of pitch).The Bravo I XS (or FS) run low in pitch (move up 1″ of pitch). Bottom line, it’s the 27″ pitch you’re looking for.

  48. Hi Scott,
    I know I am gonna get hammered here for my question! LOL
    But, I was wondering if the new bravo 1 FS would be a good prop for the Yamaha SHO (I know, I know) on my Skeeter FX20? I currently run a Ventless 27P Yamaha T1 prop at about 5800 (cold weather) and 5650 to 5700 (hot weather). If the FS would work on my rig, what pitch do you think I should go with?

    1. Mark,
      All good. There are numerous non-Mercury motors with the Bravo I FS mounted on their prop shaft. I’m not an expert on their props but I do know they have a big blade area and diameter. I would think you should move up to the 28″ pitch Bravo I FS… just not sure if you need a 29″.

  49. This may be a bit lengthy but I want to give you as much info as possible.

    I repowered my boat (1993 Ranger 482VS 25th Anniversary Edition Forrest L. Wood) with a 2014 Mercury150 Fourstroke. I previously had a 2000, 150 Optimax that I had propped with a 25P HighFive. I had a great hole shot, good mid-range punch and 50MPH top end at 5600 RPM.

    I put the same prop (25P HighFive) on my new FS but it is a real dog with no hole shot or mid-range at all. 54 MPH at 5800 RPM

    So I also tried a brand new Trophy Plus 24P with all the vent plugs out and almost the same results. 53 MPH at 5400 RPM

    So now I tried my 23P HighFive old school prop with no vent holes. I noticed a slight improvement with hole shot but no mid-range power at all.

    To make a long story short I’m looking for guidance and advice as to which prop I would need.

    I’m all about hole shot and midrange for rough water control. When I hammer down in rough water I need the nose to lift and I don’t want to blow out. I don’t care about top end so much, if I go 48 or 53 it’s no big deal to me.

    I am quite surprised that there is such a difference between the FS and the Optimax. Would you know why?

    Here are some details about the boat setup.

    3 ½ below Pad center of prop shaft. Level boat.

    Boat weight = 1370 LBS
    Motor weight = 455 LBS
    3 Battery’s = 187 LBS
    1 battery charger = 22 LBS
    1 8Ft Talon = 45 LBS.
    2 fat fisherman = 500 LBS.
    46 Gallons Gas at 6Lbs per gallon = 276 LBS
    20 Gallons water in wells at 8 LBS per gallon = 160LBS
    Tournament load fishing gear and misc.= 120LBS

    Total = 3135 LBS

    It seems heavy to me but that’s what the math says.

    I have also put this info into the Mercury prop selector and the results vary greatly whether you enter RPM, boat length, or weight.

    I’m looking forward to hearing from you.

    Thank you.


    1. Randolph,
      I am surprised regarding the performance of the 150 FS. However, your 150 OptiMax was a robust motor. The 25″ HighFive performance numbers on each engine reveal a great amount of prop slip (29% with the Opti and 24% with the 150FS). The results are such that it almost seems the prop had been repaired or modified along the way. The Trophy slip was even high at 17%. The high slip percentage is either a result of some type of prop repair/modification or your 3.5″ mounting height (center of prop shaft to bottom of the boat). The 3.5″ measurement is generally used for 70+ mph boats. A 4.75″ measurement is used for a 60 mph boat. Using the Mercury Racing Slip Calculator, if you plug in your gear ratio at 1.92:1, engine rpm at 5600, speed at 53 mph and a desired slip in the 10% to 12% range you get a recommended pitch of 21″. Once you address the slip and if 21″ pitch is correct then you have two 4-blade props to consider; the 21″ pitch Vensura or the 21″ pitch Bravo I FS. You have some homework.

  50. Hi Scott
    I run a 2014 nitro zv 21 with a 300 verado and a 22p bravo 1 part # 48-831910 witch was shipped with the boat
    Running with 45 gal fuel, full live well, 2 persons turning at 5875 rpm 57.5 mph, ran a level from the bottom of the boat I have 5.25 inches to the cav plate
    i think i would want to see a bit more rpm
    2 questions do I have the right prop from the factory and if i move to a 21 or 20 pitch fs will I gain rpm and or speed
    thank you your help is appreciated !!!

    1. Paul,
      The part number 48-831910 is the base or casting part number. The FS part number is 8M0064450. The only way to tell if it’s an FS is to look down inside the barrel. That is where we stamp the letters – FS. I recently had the chance to test the 21″ pitch Bravo I FS with Keith Kavajecz on his 300 Verado powered ZV 21. Keith was in town for Mercury’s National Walleye Tournament (Walleye Weekend – June 6-8) The 21″ FS will be the new prop of choice. It offered better planing and better throttle response. We were able to elevate the engine height which enhanced rpm and top end speed.

      1. Scott,
        I did check my prop. It is a 22P FS. The testing you did with Keith, do you have any kind of numbers that I could possibly expect with the 21P FS. My boat does seem to have a slow hole shot and need a few more RPM’s on the top end. I don’t know how much higher I can raise the engine and still keep good pressure.

        Thanks again for your time. It is greatly appreciated.

        1. Paul,
          In flat water the engine picked up 125 to 150 rpm and speed increased 1 mph; would like to see the results with some chop on the water.

  51. I have a Legend 211 w/a 250 pro XS 25 fury prop 74 at 5800 light and 70 at 5700 tournament loaded in the spring however heat of the summer I can only do 68 loaded at 5700 and my hole shot is not good and got worse with addition of Talons.Do you think a Bravo 1 FS in a 27p would be a good prop to help me carry a load.I do have a hydraulic jack plate also

    1. Tony,
      Yes. The Bravo I FS or XS would help carry the heavy load and get some speed back. The style of Bravo (FS or XS) is dependent on your gearcase. If your running the new Torque Master II, then go with the Bravo I FS. If you have the first gen Torque Master then go with the Bravo I XS. The Fury runs tall in pitch and the Bravo I is light in pitch. Typically, you would move up 2″ from the 25″ Fury to the 27″ pitch Bravo I FS or XS. The Bravo I likes to run a little higher on the transom compared to the Fury. Plan on going up 1/2″ to 3/4″. Consider running the 26″ pitch Bravo I FS or XS depending on gearcase style. You will realize a gain of 150 to 200 rpm, bringing it back to 5800 to 5900 operating rpm at wide open throttle.

  52. Hi Scott, I have a 32 fountain center console with twin verado 300’s. I am currently running rev 4 20p and getting about 5800 rpm with a fishing load. Do you think I could spin the bravo fs a little faster

    1. Brien,
      Using the Rev 4 20″ pitch for a benchmark, we could see 50 to 100 rpm gain with 21″ pitch Bravo I FS and 200 to 250 rpm gain with 20″ pitch.

  53. i have a couple of questions. i have a vl270 hydrosport bass boat that did have a 150 mercury 2 stroke with a 5 1/2 hydraulic cmc jack plate, running a 23p 3 blade tempest prop , i am changing the outboard to the new 2015 four stroke. will the same prop work or should i use another style. motor hasnt been run yet, i have a spare prop also it i a masco hp 4 25 pitch will this even fit the new shaft and if so how about this one , i am not sure where to start but have seen where the brovo 1 fs might be good. any recomendation will be appreachated

    1. Irvin,
      Re-using the Tempest 23” pitch depends on the engines gear ratio and rpm range. Depending on the model year, the The 150 2-stroke had had a 2.00:1 gear ratio and a recommended rpm range from 5000 to 5600. The Mercury 150 four stroke’s gear ratio is 1.92:1 with an rpm range from 5000 to 5800. The 23” pitch prop should offer approximately 5300 rpm. That is in the recommended engine operating range but if you’re carrying a heavy load, you might consider moving down to a 21” pitch Tempest. The smaller pitch will raise your engine rpm up at wide open throttle which will result in additional torque for improved planing. You have a prop to try so give it a spin. If it doesn’t offer enough rpm you’ll know what to do. Have fun.

  54. On my 2nd run with the Bravo 1 FS I made contact with something. Ther is a Nic on the trailing edge of one of the blades. Should I have it looked at for a possible bend? Is this edge repairable? Again the nic is small but the edge is thin.


    1. Thoma,
      Sorry to hear about your FS. You should have it looked at. Any nick to the leading – or in your case – trailing edge will result in a crack which could lead to blade loss.

  55. Scott,
    I have a 32 ZF DONZI open bow center console with twin Mercury 300 XS Optimax , bottom paint , we are currently running Bravo 1 , 22″ props . These props were on 225 opti’s before we repowered and we were only getting 5400 rpms & 52 mph. Now with the 300xs we get 60 mph @ 5800 no trim with throttle left , and have to be careful out of the hole because the motors will wrap up to over 6000 or better . Do you have any info on this set up ? We are thinking that the BRAVO 1 FS 24″ might be the answer . Unfortunately the Mercury dealers in the Charleston. SC area do not have these type of props in stock for trial . Any info would be helpful.
    Thanks Bobby

    1. Bobby,
      Let’s start with the standard 24″ pitch Bravo I. Plan to drop 300 rpm. With the 24″ pitch Bravo I FS, you might drop only 75; maybe 100 rpm. Because we don’t know what’s really left – it makes it difficult to select the pitch (with all that power it’s a good problem to have). If I had to guess – I would try either the standard 24″ pitch Bravo I or 26″ pitch Bravo I FS.

  56. I have a stratos 385xf with a 200HO etec that I am running a tempest plus 21P. When I got the prop I had issues with the PVS in big waves slipping trying to run at half plane in big waves. It would start to slip at 15 mph and it made it almost impossible to use the first weekend in 6 foot waves. I bought the plugs with no holes and that is much better but it still will slip at 20-21 mph if I am trying to run at that speed in big waves same result but not as annoying. I don’t need it to slip at all. It planes out right away and top speed with just myself in the boat is 58-59 mph at 5500 RPM’s. With a couple of guys it is 54 at 5200 rpm’s. Is there a way to stop the prop from slipping altogether? Any advice on what to run? Thanks, Charles

    1. Charles,
      Best thing to do is replace the 3 blade with the 4 blade. The Bravo I FS will do exactly what you’re looking for and more. Running a 21” pitch should offer excellent hole shot with the engine picking up 100 to 150 rpm. The 22” pitch should offer similar rpm to the 21” 3 blade at WOT. It sounds like your engine is at the correct height for the 4 blade. Enjoy.

  57. Hey, I have a 186 gl with the 200 L6. Running WOT fully loaded two guys and a full cooler I’m at 6030 RPM’s 54 MPH with a bravo 1 FS. The hole shot is a bit sluggish and I’d like to pull tubes and wakeboards. . I read that there may be a 19″ coming in the future. Would that be my answer?

    1. Tom,
      What pitch Bravo I FS are you running? Also – can you tell me the location of the cavitation plate in relation with the bottom of the boat? If your engine is deep in the water you may benefit by raising it. The 19″ pitch Bravo I XC, with a tremendous amount of cup, is the only 19″ pitch Bravo I we make. It’s designed for the Texas shallow water running boats.

  58. Hi Scott, I am in the process of buying a 2012 ranger Z520c with a 250 Verado four stroke. The owner says he has a Bravo 1 26p four blade and top speed is 72 @6200rpm. He says he likes it but might need to adjust the slide master plate for a little better performance. Is this the right prop and do you have any suggestions. Finally, can you explain the vent/plugs on the prop. Thanks John

    1. John,
      Yes, that is the prop of choice. The vent holes are primarily used for 2-stroke engine to help plane the boat. Exhaust vents out the hole to aerate the water around the propeller. Mercury makes a variety of fittings that regulate the amount of exhaust venting out through the holes. The Verado with its super charger has tremendous bottom-end torque so, in most cases, the venting is shut off or plugged.

  59. I have a Anytec 622sp with a 150efi that I am running a Bravo 1FS 20p.
    I’m at 5400 RPM’s 50 MPH
    I want to gain 150 to 200 rpm and 2 to 3 MPH
    What do you advise?
    – labfinished the Bravo 1FS with thin blades
    – 19″ pitch Bravo I XC
    Thanks John

    1. Claude,
      Consider the new 19” pitch Bravo I LT, part number 8M0126236. That should give you the added rpm you’re looking for.

  60. Im running a 2013 Blazer 625 Pro Elite with a 250 SHO, turning 6100rpm 77.5-78 mph & 74mph with 2 people with a 27p T1. Looking to gain top end and better handling with a 4 blade prop. Any suggestions?

    1. Trey,
      It’s either the Bravo I FS or the Pro Max. The FS carries the heavier loads better. The Pro Max should offer the best top-end speed for your boat. If looking at the FS, a 28” pitch should offer similar rpm to your 3-blade. I think your rpm range is 5000 to 6000, so a 29” pitch FS might be the route to go. It will take your engine rpm down to 5950. If interested in the Pro Max, look at the 27.5” pitch. It should hit 6000 rpm. Have fun.

  61. Just bought a new to me 2006 620 Ranger with a 250 4 stroke Yamaha on it. It currently has a beat up Rev 4 21 P on it and there performance is poor hole shot and a top speed of 49 mph. Do you recommend replacing the rev 4 with a new one or going to a bravo fs. and if going to a bravo what pitch would be best?

  62. Hi Scott, I’m repowering my 289 Open Intrepid with twin 300 V8 Mercurys. Which prop would you recommend Rev4 or Bravo 1 FS ? It’s a single stepped hull. Currently running 225 Optis with 21p Mirage Plus turning 5500 rpm topping out light at 54-55 mph.

    1. Or maybe Enertia ECOs would be a better fit ? The current Optis are mounted on the second hole down from the top. We’re thinking to lift the new 4 stroke engines up 1 hole higher, third hole down from the top, to get the larger drives closer to the surface creating less drag for better performance.

    2. Greg,

      Which model of the 300 V8 did you order? The standard Fourstroke model will have a 6000 rpm limiter. What is going to be most important to you in this new setup? Top end speed, hole shot, fuel economy, etc? The ECO XP is the best option for fuel economy, and the 20.5 pitch would land you in the low 60’s for top end speed. In the Rev4 XP line, you can go with the 21.5 pitch. Expect slightly better top end speed than the ECO XP’s.


      1. Nick,

        They are the standard Fourstroke model. Fuel economy would be most important with top end taking a close second place. I’ll try both the Rev4 and ECOs and see how they compare. Thank you for the suggestions.

  63. Nick,

    We were able to get out and sea trail the boat today. We only had a set of 21 ECOs available. At full throttle with 0 trim we saw 5250 rpm, at 1.0 trim 5500, at 2.0 trim 5700 and at full trim 5850. I would like to try a set of Rev 4. Do you still recommend the 21.5p after seeing the numbers from the 21p ECOs ?

    1. Greg,

      Yes you can expect to be on the rev limiter with the 21.5 Rev 4 XP at full trim. At your 2.0 trim level, expect to be right at 6000. Do you have MPH data to go along with that trim/RPM data? It will be helpful to see at which trim position you start to lose efficiency. You will most likely be experiencing higher levels of slip at full trim.


      1. Nick,

        I was able to get my hands on a pair of Bravo 1 FS 23p. We got out yesterday evening and tested them against the ECOs 21p. Below are the numbers. At full rpm the ECOs start to slip at 2.0 trim, the Bravos at 2.4.

        ENERTIA ECO – 21p top line
        BRAVO 1 FS – 23p second line

        3500 – 36 mph – 2.1 mpg
        3500 – 35 mph – 2.3 mpg

        3800 – 40mph – 1.9 mpg
        3800 – 39 mph – 2.1 mpg

        4000 – 42 mph – 1.9 mpg
        4000 – 40 mph – 2.0 mpg

        4500 – 50 mph – 1.6 mpg
        4500 – 47 mph – 1.8 mpg

        5000 – 56 mph – 1.2 mpg
        5000 – 52 mph – 1.4 mpg

        5500 – 58 mph – 1.3 mpg
        5500 – 58 mph – 1.3 mpg

        5800 – 60 mph – 1.2 mpg
        6000 – 60 mph – 1.2 mpg

        1. Greg,

          Seems like both props are good options. That 5000 RPM cruising speed with the ECO’s is pretty impressive. Great data! Did you prefer the handling of one set over the other?


          1. Nick,

            At speeds above 45 mph with the Bravo props the stern settled in more with the boat riding on the step with good bow lift. The boat just felt more secure in the water. With the flared barrel on the ECOs I think I’m getting too much stern lift ? The boat starts to chime-walk at higher speeds. The ECOs do seem to have more pep at the lower rpm I assume because of the bigger diameter. Both props perform well at midrange cruise. I plan on running the Bravos for a while and possibly keep the ECOs as a spare set.

          2. Gregory,

            There are other applications where the long flared barrel and big diameter of the ECO’s often causes them to perform as you described. Lots of lift through the mid range can be great for cruising fuel efficiency, but ultimately hurts performance on top end compared to the Bravos and Rev 4s.


  64. I have a 23ft shoalwater cat with 250 xs with bravo 1 20p just bought a 22 p fs good choice? should I see more speed?

    1. Riley,

      What was your speed and RPM at wide open throttle with the standard Bravo I? With your two stroke, you could have opted to go with the Bravo I XS, which has eight vent holes for improved hole shot.


  65. Nick,

    Yes Sir I am very pleased with both the ECOs and the Bravos at midrange cruise. Should the opportunity present itself I would still like to try a set of 21.5p Rev 4 XP. Thank you for all your help. You guys are awesome !


  66. I have a 2019 nitro z19 with the 200 pro xs four stroke. I have a 23p fury 3 blade prop, at WOT rpms are 5900. 4 second plane time, average speed tour loaded by my self 66-68. Looking for the better handling the Bravo props offer. Had a 22p bravo fs on my last boat Z7. What bravo prop would be best, to keep under max rmp? And what kind of holeshot. Top end speed would it get?

  67. Nitro z18 looking for 4 blade prop has 150 4 stroke not getting enough lift looking at a bravo prop any recommendations on pitch some have said 24p running a 23 tempest at 5800 now

    1. Joshua,

      The Bravo I FS will give an ample amount of bow lift, but still quite as much as a Tempest. To maintain about the same RPM, you are spot on with the 24 pitch.


  68. Hi, my question is what is best prop for my Ranger z21 Mercury Verado 250hp? My current prop is Bravo I 24p Xs and my Max. Rpm is 5850 speed is 62.1 mph I try bravo 1 26p and I got 5300rpm with 63mph. Thank you in advance

    1. Predrag,

      With how well the 24 pitch Bravo I XS is performing I wouldn’t change a thing. As you saw, stepping up in pitch can increase you top end speed at the price of hole shot and acceleration. For the best all around performance, I think you’re there.


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