Bravo 1 vs revolution 4

Runs2rch · Apr 10, 2017

Done-it-again said:
What does cooler or warmer temps effect on props? We've only boated our new to us boat since October nothing in the summer yet. Do boats run faster in the summer with same prop? Just don't know the reasoning.

As Fishing Fool just posted. Cool air more power, Hot air less power. Roughly 1-2 percent per 10 degress of air temp.

LargeOrangeFont · May 22, 2017

Circling back to this.

I got a Revolution 4 23 pitch prop and tried it this weekend in place of my Bravo 1 24.

The prop is physically larger than a Bravo. I actually lost RPM on the top end, but I believe I'm maintaining the same top speed. It seemed to lower my cruising RPM for a given speed. Midrange response seemed good. It might plane out slower, I really need to time it and see. I see what people mean when they say these "feel" bigger than they are.

It really changed the way the boat rode. It was a flatter ride with less bow lift than I get out of the B1 24. I like the ride better with the Rev 4.

I was with the family so I was not able to do a good back to back comparison and swap props. I'll try to do that in the next month or so.

CobraDave · May 22, 2017

LargeOrangeFont said:
Circling back to this.

I got a Revolution 4 23 pitch prop and tried it this weekend in place of my Bravo 1 24.

The prop is physically larger than a Bravo. I actually lost RPM on the top end, but I believe I'm maintaining the same top speed. It seemed to lower my cruising RPM for a given speed. Midrange response seemed good. It might plane out slower, I really need to time it and see. I see what people mean when they say these "feel" bigger than they are.

It really changed the way the boat rode. It was a flatter ride with less bow lift than I get out of the B1 24. I like the ride better with the Rev 4.

I was with the family so I was not able to do a good back to back comparison and swap props. I'll try to do that in the next month or so.

I loved the b1 24 pitch that cutting edge labbed. It would just grab all the time. I'm having them repair it now and clean it up. I asked to get another 100 Rpms out of it on the top end. I'm gonna test it The week of June 9.

LargeOrangeFont · May 22, 2017

CobraDave said:
I loved the b1 24 pitch that cutting edge labbed. It would just grab all the time. I'm having them repair it now and clean it up. I asked to get another 100 Rpms out of it on the top end. I'm gonna test it The week of June 9.

I'll be there then too. I can bring my Techstream setup for your truck if you want and have some time.

I want to do some testing with this Rev23. I think I may want to get it labbed to get a little more RPM. My peak RPM with the small block is supposed to be 5000-5400. The B1 24 runs about 5200. The Rev4 23 just barely touches 5000.

CobraDave · May 22, 2017

Cool sounds good. I'll be out there a week so if you want to try mine out also you're more than welcome.

LargeOrangeFont · May 22, 2017

CobraDave said:
Cool sounds good. I'll be out there a week so if you want to try mine out also you're more than welcome.

Cool! I'd like to see what this Rev 4 does for you big block guys as well. It might help!

RiverDave · May 22, 2017

fishing fool said:
Yes my boat is 22' (I think it's 22'11") with a step hull.
As I have said before to me the 23rev feels like it raises the whole boat a foot out of the water. Pops right up and has great mid range hit. Top end is 63mph @ 4800rmp I hit the limiter at around 7/8 throttle (4-5 clicks left to wot)
The 24 bravo has same top speed but lacks everywhere else.

If you are on the rev limiter with that much throttle left, sell the 23 back to me and get a 25 revolution.

fishing fool · May 22, 2017

RiverDave said:
If you are on the rev limiter with that much throttle left, sell the 23 back to me and get a 25 revolution.

This is what I need to do. I'm at the rev limiter at about 3/4 throttle on the rev 4 23. Need to get a rev4 25.

NicPaus · May 22, 2017

fishing fool said:
This is what I need to do. I'm at the rev limiter at about 3/4 throttle on the rev 4 23. Need to get a rev4 25.

With a 496 HO? I have a 23 rev 4 can hit rev limiter with low fuel and 2 people but takes a while. Tried a 25 and was only pulling 4600 or so rpm t8 much pitch. Was harder to spin than a bone stock 26 B1. I sold it to a Inmate on here. Thought about labbing it but the 23 works great when loaded.

02HoWaRd26 · May 22, 2017

What about the Bravo 1Xs anything on them? They have two 1" holes in them for some reason

Done-it-again · May 22, 2017

It's the venting system if your exhaust is through the drive. You can set different plugs to allow more, less or none exhaust to help spin the prop during take off.

fishing fool · May 22, 2017

NicPaus said:
With a 496 HO? I have a 23 rev 4 can hit rev limiter with low fuel and 2 people but takes a while. Tried a 25 and was only pulling 4600 or so rpm t8 much pitch. Was harder to spin than a bone stock 26 B1. I sold it to a Inmate on here. Thought about labbing it but the 23 works great when loaded.

I have a 496 mag. (Not HO).
I had a bravo 26 and it would blow out when turning and harder to plane out. Would do 70mph, now with the rev4 I go 63mph but better all around.

Runs2rch · May 22, 2017

fishing fool said:
I have a 496 mag. (Not HO).
I had a bravo 26 and it would blow out when turning and harder to plane out. Would do 70mph, now with the rev4 I go 63mph but better all around.

What boat?

I have not run a B1 on my boat yet, but same results with the 23 REV 4 with a 496HO.

All around great performance, fuel consumption etc.

Runs2rch · May 22, 2017

Done-it-again said:
It's the venting system if your exhaust is through the drive. You can set different plugs to allow more, less or none exhaust to help spin the prop during take off.

Exactly. Nice way to run a pitch higher and plane easier.

As you said only works with through hub. Makes me wonder why the maximus come with PVS? They are run on higher hp usually no through hub.

fishing fool · May 22, 2017

Runs2rch said:
What boat?

I have not run a B1 on my boat yet, but same results with the 23 REV 4 with a 496HO.

All around great performance, fuel consumption etc.

Eliminator 220 eagle step hull.

Runs2rch · May 22, 2017

fishing fool said:
Eliminator 220 eagle step hull.

I have a Hallett 210 open bow. I feel like a 24 or 26 B1 could work. I just don't want to be lazy on plane. What was your 3k cruise speed with the 26 B1?

fishing fool · May 22, 2017

Runs2rch said:
I have a Hallett 210 open bow. I feel like a 24 or 26 B1 could work. I just don't want to be lazy on plane. What was your 3k cruise speed with the 26 B1?

I don't remember what the 26 was. The 23 rev4 3000rpm is around 40mph.
The 24 bravo planes good just not as fast as the rev4 does. The rev4 also feels like it has more stern lift.

Runs2rch · May 22, 2017

fishing fool said:
I don't remember what the 26 was. The 23 rev4 3000rpm is around 40mph.
The 24 bravo planes good just not as fast as the rev4 does. The rev4 also feels like it has more stern lift.

My 3k speed is the same 40mph with a 23 Rev4.

You should be feeling more bow/overall lift with the Rev. B1's are stern lifters.

fishing fool · May 22, 2017

Runs2rch said:
My 3k speed is the same 40mph with a 23 Rev4.

You should be feeling more bow/overall lift with the Rev. B1's are stern lifters.

Yes. The rev4 feels like it lifts the boat about a foot.

fishing fool · May 22, 2017

Check this out, it lets you know how much fuel you are useing. For me the best mpg is 3500rpm that's a cruising Speer of 45mph. I'm good with that.

http://www.boat-fuel-economy.com/mercury-mercruiser-496-mag-8.1-fuel-consumption-us-gallons

Runs2rch · May 22, 2017

fishing fool said:
Check this out, it lets you know how much fuel you are useing. For me the best mpg is 3500rpm that's a cruising Speer of 45mph. I'm good with that.

http://www.boat-fuel-economy.com/mercury-mercruiser-496-mag-8.1-fuel-consumption-us-gallons

Pretty sure that is incorrect. Weight of boat, and bottom efficiency not factored.

LargeOrangeFont · May 22, 2017

Runs2rch said:
Pretty sure that is incorrect. Weight of boat, and bottom efficiency not factored.

Yea I was going to say.. If I got that mileage, I'd be out of gas after a weekend, and I never am.

Runs2rch · May 22, 2017

LargeOrangeFont said:
Yea I was going to say.. If I got that mileage, I'd be out of gas after a weekend, and I never am.

Same here. I have hand calculated mine to be right at 8 gph. Normal cruising, water sports etc. We also camp 15-18 miles up the lake.

After a 4-5 day trip I come back with 15 or so gallons.

fishing fool · May 22, 2017

That is how much fuel the motor uses per hour at rpm.
Weight or hull should not matter.

It's not mileage

LargeOrangeFont · May 22, 2017

fishing fool said:
That is how much fuel the motor uses per hour at rpm.
Weight or hull should not matter.

It's not mileage

There is a MPG calculator if you click the MPG button and put in your speed for a given RPM. We are talking about that part of the page that is inaccurate.

It cant be accurate without prop info and slip percentage anyway, let alone weight and hull type.

Runs2rch · May 22, 2017

LargeOrangeFont said:
There is a MPG calculator if you click the MPG button and put in your speed for a given RPM. We are talking about that part of the page that is inaccurate.

It cant be accurate without prop info and slip percentage anyway, let alone weight and hull type.

Yes! Exactly. :thumbsup

LargeOrangeFont · May 22, 2017

Apparently Mercury racing makes the Rev4 in 19,20,21,22,23,24 and 25 pitch variations if you get the lab finished "R" versions..

http://www.mercuryracing.com/wp-content/uploads/2016/02/2790-2_REV-4_SS.pdf

The Rev4 22 labbed is only coming back at $1000 upon a quick search :smackhead

I need to try my 23 again. Based on what I saw last weekend the slip numbers came back at ~9%, but I need another test to verify.

And FYI the Bravo is a 15.25" diameter prop while the Revolution 4 is a 14.63" diameter prop

Runs2rch · May 22, 2017

LargeOrangeFont said:
Apparently Mercury racing makes the Rev4 in 19,20,21,22,23,24 and 25 pitch variations if you get the lab finished "R" versions..

http://www.mercuryracing.com/wp-content/uploads/2016/02/2790-2_REV-4_SS.pdf

The Rev4 22 labbed is only coming back at $1000 upon a quick search :smackhead

I need to try my 23 again. Based on what I saw last weekend the slip numbers came back at ~9%, but I need another test to verify.

And FYI the Bravo is a 14.25" diameter prop while the Revolution 4 is a 14.63" diameter prop

Bravo is 15 1/4.

LargeOrangeFont · May 22, 2017

Runs2rch said:
Bravo is 15 1/4.

Typoed that.

I swear my REV looks bigger than my Bravo. I didnt take a pic though.

fishing fool · May 22, 2017

If you are talking about this.... how could it not be right??? You are putting in the rpm and speed, it is figuring out everything else. What am I missing?
Ok, Tapatalk won't let me upload a pic.

LargeOrangeFont · May 22, 2017

fishing fool said:
If you are talking about this.... how could it not be right??? You are putting in the rpm and speed, it is figuring out everything else. What am I missing?
Ok, Tapatalk won't let me upload a pic.

Load. It is missing load. You can go the same RPM and speed at different throttle positions.

I think it is good for a general number, but my boat is not using that much fuel when I calculate running around at a fairly constant speed over a given distance.

NicPaus · May 23, 2017

LargeOrangeFont said:
Typoed that.

I swear my REV looks bigger than my Bravo. I didnt take a pic though.

The blades are bigger overall but not at widest point. A lot more surface area on my Rev4. I ran the 24 B1 last trip for tubing. Much quicker on plane than rev 23. Had a boat load of kids so never got on it.

fishing fool · May 23, 2017

Bravo1 24 on the left rev4 23 on the right.

LargeOrangeFont · May 23, 2017

I swear the REV looks like it has a bigger diameter.

NicPaus · May 23, 2017

LargeOrangeFont said:
I swear the REV looks like it has a bigger diameter.

If I was in Parker I would throw a tape on them. Trying to make it out there this weekend. Measure them just to see.

LargeOrangeFont · May 23, 2017

Well if you don't I will in 2 weeks.

Rbcconst · May 23, 2017

LargeOrangeFont said:
Apparently Mercury racing makes the Rev4 in 19,20,21,22,23,24 and 25 pitch variations if you get the lab finished "R" versions..

http://www.mercuryracing.com/wp-content/uploads/2016/02/2790-2_REV-4_SS.pdf

The Rev4 22 labbed is only coming back at $1000 upon a quick search :smackhead

I need to try my 23 again. Based on what I saw last weekend the slip numbers came back at ~9%, but I need another test to verify.

And FYI the Bravo is a 15.25" diameter prop while the Revolution 4 is a 14.63" diameter prop

I had called Brett from bblades and talked to him on the rev vs bravo he said if your going labbed then get the bravo 1. If you have a bravo you could have it labbed for around $450 and you can have it labbed to your boat and needs.

Runs2rch · May 23, 2017

Any of you guys have a 24 or 26 Bravo 1 I could try?

fishing fool · May 23, 2017

Runs2rch said:
Any of you guys have a 24 or 26 Bravo 1 I could try?

For $200 you can buy one.

https://mohave.craigslist.org/bpo/6137995552.html

RiverDave · May 23, 2017

fishing fool said:
For $200 you can buy one.

https://mohave.craigslist.org/bpo/6137995552.html

That's pretty cheap actually..

RD

sirbob · May 23, 2017

For what its worth I recently changed from a 26p Bravo to a 25p Bravo and can't believe the difference in a positive way.

Granted its my cat hull / 8.2HO / Ultra 26 not a v bottom...

26p = 4900 RPM about 72/3 fully loaded.

25p = 5150 RPM about 69/70 same load. (ran back to back)

The real difference came in the seat of the pants feeling - out of the hole much quicker and without so much bow rise. The real joy however came between 30mph - 55 mph This thing pulls really strong and is much more responsive when just running and tweaking the throttle a little bit.

02HoWaRd26 · May 24, 2017

fishing fool said:
For $200 you can (could have bought) buy one.

https://mohave.craigslist.org/bpo/6137995552.html

RiverDave said:
That's pretty cheap actually..

RD

Yes yes it was!!!!
And it is literally pristine like it was never ran.

nordic454 · May 24, 2017

fishing fool said:
I run a rev 23. I think it lifts the boat out of the water and has better mid range. Compared to a bravo 24 top end is the same.
I has a bravo 26 and would do 70mph but struggled out of the hole and it would blow out when turning. My plan is to get a 25rev to get some top end back.
Bravo on the left revolution on the right.

View attachment 552220

I had the exact opposite experience. Cheetah recommends the Bravo 1 24p, bought the boat with a Rev 4 23p. Spun out of the hole, spun during turning. Top end was good, great mid range punch. Switched to a Bravo 1 24p, and its night and day. Jumps out of the hole, and no issues turning, the mid range is a lot smoother, and the top end is a bit higher right at 70/5100 rpm with a stock 496ho

Runs2rch · May 25, 2017

nordic454 said:
I had the exact opposite experience. Cheetah recommends the Bravo 1 24p, bought the boat with a Rev 4 23p. Spun out of the hole, spun during turning. Top end was good, great mid range punch. Switched to a Bravo 1 24p, and its night and day. Jumps out of the hole, and no issues turning, the mid range is a lot smoother, and the top end is a bit higher right at 70/5100 rpm with a stock 496ho

On a cat or tunnel I would not recommend the Rev.

Bravo 1 vs revolution 4

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