Mercury Revolution 4
 

Has anyone tried this prop? On what type of boat and what did you think?

Re: Mercury Revolution 4
 

I run one on my 26 foot Wellcraft Nova. I put a n/a 540, about 600 hp , single in the boat and it would blow out any 3 blade prop that I tried. Went to a revolution, and problem solved. The boat handles much better at all speeds and cruises more efficiently too.

Re: Mercury Revolution 4
 

How did the prop affect top speed? What pitch did you go with in relation to the pitch on your 3 blade?

I'm running a 21p mirage + right now, only seeing 4500 rpm @ about 62 mph. i just ordered a 19p rev 4 from ebay. I have problems with my prop blowing out too, at low speeds. Also problems with porpoising in smooth water at certain speeds. I'm hoping this prop does the trick.

Re: Mercury Revolution 4
 

Sleeper Dave,

If you scroll back a ways through these threads, you'll find some extensive discussions on this propeller family. We love this propeller at BBLADES and have a full line of test props available. Originally designed for mid 20 foot single engine sport boat applications, we now use them on out boards to med. power Bravo drives.

Re: Mercury Revolution 4
 

I've read some of the discussions before. That's what led me to order it. I'm primarily looking for better out of the hole and midrange, and that's the reason i went with it, but i'm kind of hoping for some top-end benefits too!

I'll have the prop today, hopefully, so I might be able to find out for myself tonight! It was sort of an impulse purchase this weekend, after i kept blowing the prop out on Friday i got kind of p.o.ed and just ponyed up and bought it. I checked out your site and tried to call but didn't get an answer on Saturday. Found a new one on ebay for $435 so i bought it.

Re: Mercury Revolution 4
 

Sorry I missed the call Sat. We were all at graduation parties. My 18 year old son was one of the graduates and we had a party at our home. Congrats again Joseph!! Actually he finished in Jan. And already has a semester of college under his belt. The formal class graduation was Sat. I'm very proud (if you can't tell).

If you have questions in the future, please let us know

Re: Mercury Revolution 4
 

I bought a pair from bblades for my 32' outlaw, best props I ever had on it, and I tried every other make/model. I also run them "in" which no other prop felt good running "in" before. I have 23 pitch, if I was to go with 3 blades I would run 25 pitch props. I get great stern lift with the rev 4's.

Re: Mercury Revolution 4
 

We're getting a set of test props very soon from what the hubby told me yesterday. Rob said bblades was very helpful and he really appreciated the time you took to discuss everything with him. The props sound like what we're looking for as far as what everyone is saying about bring the bow out of the water. Our boat is very top heavy. Can't wait to try them out.

Re: Mercury Revolution 4
 

Congrats bblades!

I put the rev 4 on last night and tried it out. It does everything better except top speed. I lost a couple mph up top, but i just filled the boat up when i put it away last time, so some might come back. More on that later.

Out of the hole, a world of difference. I can plane out without using the tabs. I can leave the tabs and drive set how i want them for cruise, and it planes out no problem. I can get on plane at half throttle if i want.

Cruising, also great. It'll hold plane at a lower speed with less tab. I can comfortably cruise at 35 mph now, before i was playing with the throttle to hold plane at that speed. 3100 rpm = 35 mph, bump the throttle up one click and it goes to 3500 rpm and 40 mph. Both good cruising settings.

I can slow down and let the boat just start to come off plane, then hammer it again and it'll pop right back up. Before, the prop would just blow out.

At idle speeds the boat seems to track straighter. But i didn't do much idling so i have to check that out further. At moderate speeds the boat just behaves better, responds to controls better, etc.

When i hit waves, the prop seems less likely to lose traction, it doesn't rev up as easy.

At WOT, i'm seeing 4800 rpm and a best of 58.2 mph. Previous best was 61.4 at 4500 rpm w/ 21p mirage +, but i was probably carrying 200 lbs less fuel at the time. It will carry the bow better, no more porpoising. I can give it way more trim than i should and it stays hooked up, the bow just keeps lifting.

All around a much better prop. But i did lose a couple mph.

Re: Mercury Revolution 4
 

BTW, i'm running a 27 fever, single 502, 1.36 drive.

I just did some calculations, seems like i'm at about 8.3% slip at WOT, and anywhere from 10-13% at cruise.

What's the "performance vent system" and what does it do?

Re: Mercury Revolution 4
 

PVS is used for applications with through hub exhaust. Boats with outboards or non- through transom exhaust can control the amount of exhaust gasses allowed to attack the high pressure side of the prop blades. This creates ventilation to build hole shot rpm.

Re: Mercury Revolution 4
 

My 236 Rinker has a 600+ hp 496 in it, and I've ran both a 25 mirage plus, and a 25 Rev 4. If you didn't know which prop was on, you would never know the difference. I actually run 50 rpm more cruising with the Rev 4, than the three blade. Top end is 74.4 with the M+, and 73.7 with the Rev 4. :chimp:

Re: Mercury Revolution 4
 

I ran a Rev 4 on my old boat (Stingray ZP hull) and it was easily the best prop for it and only a MPH slower then any 3 blade I tried.. Tried one on my Sunsation 288 and it no likey thus it's for sale if anyone needs a 23P. In the Sunsation case the Bravo is definetly the better prop for it. I know a couple guys that run the Rev4 on their Bajas who really like em as well....

I heard you guys ate the best for props. I have a 03 Power quest Legend with 496 (not HO) with a labed mirage plus. At 4800rpm I'm at 60mph GPS. Wondering what you recommend for my setup? Thanks!

bigvander,

You may be doing just fine as is. You really only have about 100 rpm to play with.
What pitch is the M+? You might be in a position to go up in pitch and have the propeller Lab Finished to gain top speed as well as cruise speed.

Brett

How does the Rev 4 compare to a Bravo 1? They seem very similar. Brett, I am running a 30p Bravo 1 that you labbed on my Donzi. How would a Rev 4 act differently. More or less bow lift?

More bow lift for the Revolution 4 in out of the box configuration. But the Labbing procedure can cause the B1 to have more bow lift. I'd have to look at your file to determine the adjustments we made.

Brett

I don't think you changed much since I told you that the boat was running fine. It takes a bit of trim to air out and get the port tab up but I think it's normal. So you prefer the Rev 4 over the Bravo 1 for most applications? Maybe I should try one.

I prefer the Bravo 1 over the Rev 4 when Lab Finished to the boats desired results. I like the Rev 4 out of the box as a stock four blade upgrade from 3 blade props.

Brett

I was reading through this posting and thought I could get some help here. I have a Powerquest 270 Laser with a 502 MPI running a Bravo 1 24p. At WOT I am at 4400 RPM and around 62 MPH, but that isn't GPS. I know I need to go down in pitch, but should I go 3 blade or 4 blade? I am not looking for top speed, but more overall ride.

Looks like the Rev 4 only goes up to 25p. I'm running a 30p Bravo 1.

Hello Brett entering this discussion as you mentioned I might consider Rev 4s for my 35' Marlago center console twin 250EFI as one option. You should have received my 22P Bravo 1s now to lab for top speed and stern lift for this boat. How would you compare Rev 4 vs Bravo 1 for my application? Which prop would lab better for top speed and stern lift and get me in the 5200-5800 rpm range? As I told you I have a very light bow as well as no trouble planing. Thanks, Andy

The rev 4 is a very nice prop. I have a 34 cc fountain w twin 300 verados. Went from 3 blade to rev4 21p. 5k rpm picked up 8 plus mph. I have the gps/rpm pics to prove it. Fuel mileage went up 3/10s also. Never tried B1 on this boat.

As mentioned before, the Bravo 1 family responds the best to the Lab process as compared to the Revolution 4 family.
We'll be in touch with any questions.

Thank you,
Brett

Brett,

The M+ is a 23p but it looks like the cupping was machined off. Low and mid are really doggy with the M+ and I don't spent a lot of time at WOT so top speed isn't a huge concern. Looking for the best low and mid range performance increase. Any ideas?

Thanks,
Josh

Moving t 4 blade props tends to improve both planning low end and cruise speeds as well as handling.
We have 4 blades for testing if you desire.

Brett

What info do you need to recommend a prop?

bigvander,

It would make sense for you to call us and we can discuss your set up and options.
Please speak to Brad or myself. We are quite busy right now so we may need to call you back. This time of year the phones can get quite busy but you will always get a call back.

Brett

Can't find any info on how much rake the rev 4s and bravo 1s have.

Anybody??? Thanks

20 and 25 degrees.

Brett

I just picked up a set of Rev 4's in a 25P to test out on my Formula. So far I've tested a stock set of Bravo 26's. A Set of labbed 30 casting Bravos, repitched to 28 and diffuser removed and BBlades added a lot of cupping to the tips when they reworked them. I've also got a set of factory labbed Mirage 27's I'm going to test today.

I tested the REV4's on my boat last weekend, I didn't care for them. The boat felt glued to the water, I like the boat to feel loose. Speed wise, I didn't see and improvement over the bravo, hole shot and mid-range were all pretty similar to the bravo. Again, for me I didn't like the way the boat felt in 1'-2' chop. In big rollers in Lake Michigan the Bravo's were superior. With Bravo's my boat will land softly in a 3-4 roller, the Rev4 the boat rode more harsh.

Now my boat is running -2 sportmasters and ITS boxes, so this may attribute to why I didn't like the REV4. I know most guys with my hull like this prop.