WELCOME TO RIVER DAVES PLACE

HEY--LAM, BOUGHT A BOAT TODAY...

2FORCEFULL

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more from merc....

the Revolution 4® XP propeller has many applications, but is especially effective when dialling in multi-engine, stepped-bottom performance center console boats and single-engine bay boats. The Revolution 4 XP helps lift these stern-heavy boats on plane because its long barrel length design acts like a miniature trim tab and provides stern lift at speed for ideal angle of attack and an improved ride in a variety of conditions. Each of its four blades has ample tip cup for bow lift and excellent handling through turns and rough seas. In most applications, the Revolution 4 XP offers more stern lift than the Mercury Racing Bravo I® FS, and better top-end speed than the Mercury Racing Enertia® ECO XP propeller.
 

2FORCEFULL

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So according to cheetah (greg),.. these boats come with a bravo 24p...

it's been my experience that the rev 4 25p is more in compare to a 26p bravo, like in, if you are running a 24p bravo, you would first try a 23p rev 4

I also have a 23p rev,.. maybe with the smaller pitch it would not have so much stern lift???? it's my thought that the 25p is too much prop and bite for this boat.... we'll see.. I got 10 props I can try,... most likely none will be right>>>LOL


with an air entrapment hull, you should not need transom lift...??? transom lift causes bow steer if too much.... that could get scary...
 

RCDave

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That is the Rev 4 xp.

The regular Rev 4 in my experience is bow lifting and much less stern lifting that a Bravo 1
 

Runs2rch

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what part??? rev 4 props are stern lift props, used on multi engine= out boards..
They are an overall lifting prop. They work great on old school straight bottom boats as well.

Maybe just try a box stock 24 Bravo 1?
 

Jay Dub

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They are an overall lifting prop. They work great on old school straight bottom boats as well.

Maybe just try a box stock 24 Bravo 1?
I run a Rev4 on my 210. Big improvement from the OE Mirage plus 3 blade
 

2FORCEFULL

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rev 4... one says stern, one says bow....I say they work,... but not on every boat...mach stern drivers props,... out of business... but worked on bajas the best of all props.. I have a mach, round ear 26p, and a hill 23p 5 blade... those will be the two that are way out there with no comparison,... so i'm gonna try them first....Cheetah fast cats are just that,... fast and don't do any weird shit unless you mess with them.. probley end up with a bravo 24p... but I wanna see what happens,... I now know that the rev 25 is too much prop. and too much stern lift,... so It goes on the shelf...
 

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I also know this,... to go from a bravo (one thats working) to a rev, you need to step down a pitch,... so if you are at 24p the 23 is the go to... anyone that wants to try a 23 rev in vegas or havasu,.. I have a few,.. and I would trade for a bravo 24p..
 

RCDave

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I also know this,... to go from a bravo (one thats working) to a rev, you need to step down a pitch,... so if you are at 24p the 23 is the go to... anyone that wants to try a 23 rev in vegas or havasu,.. I have a few,.. and I would trade for a bravo 24p..
that is also my experience
 

Riverryder

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I also know this,... to go from a bravo (one thats working) to a rev, you need to step down a pitch,... so if you are at 24p the 23 is the go to... anyone that wants to try a 23 rev in vegas or havasu,.. I have a few,.. and I would trade for a bravo 24p..

my motor guy let me use a 24p bravo. I liked it made the boat more stable. Boat had 21p 3blade I like how sporty/ squirrelly it felt. The 3 blade gave me more top end speed then the 4 blade. This weekend I think I’m going to try them back to back.
 

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my motor guy let me use a 24p bravo. I liked it made the boat more stable. Boat had 21p 3blade I like how sporty/ squirrelly it felt. The 3 blade gave me more top end speed then the 4 blade. This weekend I think I’m going to try them back to back.
your post doesn't make mathematical sense???? with a three blade, you step down a pitch, that's the norm... steping up to a 24p you would loose about 700 rpms,... but if it was over reving... could make sense... tell us more... speed,. and rpms both props.. prop selection is mathematical...as if if it's over reving... go up...
 

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So according to cheetah (greg),.. these boats come with a bravo 24p...

it's been my experience that the rev 4 25p is more in compare to a 26p bravo, like in, if you are running a 24p bravo, you would first try a 23p rev 4

I also have a 23p rev,.. maybe with the smaller pitch it would not have so much stern lift???? it's my thought that the 25p is too much prop and bite for this boat.... we'll see.. I got 10 props I can try,... most likely none will be right>>>LOL


with an air entrapment hull, you should not need transom lift...??? transom lift causes bow steer if too much.... that could get scary...

My Rev4 23 runs like a Bravo 25. I like the ride better with the Rev4 23 than the Bravo 24.
 

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Ive had the same experience. The Rev hold the bow higher. Bravo has more stern lift and makes the bow slap harder

Exactly. The Rev23 is my go to all around prop for my boat these days.
 

RCDave

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My former Shockwave 25 was 2-3mph faster with a 23P Rev than a 24P B1. And cruised at a higher speed at the same RPM. Faster and more efficient!
 

2FORCEFULL

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My former Shockwave 25 was 2-3mph faster with a 23P Rev than a 24P B1. And cruised at a higher speed at the same RPM. Faster and more efficient!
thats because the shockwave is a heavy boat and the 24 had too much slip... but that is the mathematical correct way to do it..one pitch down, way more bite nets faster speed all round... but that doesn't mean that it's magic.. poof, now I go faster... it's still mathematical... the same nordic 25 runs faster with less power..
 

RCDave

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thats because the shockwave is a heavy boat and the 24 had too much slip... but that is the mathematical correct way to do it..one pitch down, way more bite nets faster speed all round... but that doesn't mean that it's magic.. poof, now I go faster... it's still mathematical... the same nordic 25 runs faster with less power..

Funny. My 25 shockwave ran faster than 2 of my friends 25 Nordic rages All with 496HO's.

And A tremor spanks a rage in the rough

And the
 
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2FORCEFULL

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My former Shockwave 25 was 2-3mph faster with a 23P Rev than a 24P B1. And cruised at a higher speed at the same RPM. Faster and more efficient!
the way this is possible is slip,.. lets say you ran 63 with the 24... @ 20 % slip... and 66 with the 23, that would only 13% slip.... so getting more bite nets more speed at the same rpm.. and as you said... all the way thru the throttle
 

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Funny. My 25 shockwave ran faster than 2 of my friends 25 Nordic rages All with 496HO's.
so you ran 77 ??? all my rage boat,.. about 12, ran way faster then all the others...
 

2FORCEFULL

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Funny. My 25 shockwave ran faster than 2 of my friends 25 Nordic rages All with 496HO's.

And A tremor spanks a rage in the rough

And the
gonna bet they weren't running 26p props....
 

RCDave

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the way this is possible is slip,.. lets say you ran 63 with the 24... @ 20 % slip... and 66 with the 23, that would only 13% slip.... so getting more bite nets more speed at the same rpm.. and as you said... all the way thru the throttle

Sounds like the Rev is a better prop for certain hulls
 

2FORCEFULL

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again, the math doesn't lie... thats why when I prop a boat, I record every 1000 rpms.. and watch prop load...unless, as in the 25p on this boat, I knew it was wrong and that it wouldn't go back on the boat
 

RCDave

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3% slip???? 23 pitch prop????
Prop slip calls are theoretical not real world.

York props did work magic. I did forget that GPS speed was via a labbed 3 blade mirage plus 25p prop.

The Rev ran 71
 

2FORCEFULL

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Funny. My 25 shockwave ran faster than 2 of my friends 25 Nordic rages All with 496HO's.

And A tremor spanks a rage in the rough

And the


LOL.... that a salesman's quote... "
And A tremor spanks a rage in the rough....no f'n way...
 

2FORCEFULL

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  • If the percentage is negative, you have input incorrect data, usually, this means the gear ratio is incorrect or the tachometer is not dialed in.
 

2FORCEFULL

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wonder how this one does??? 6.2 motor...

2005 Cheetah 24ft ( new interior/carpet - boats - by dealer - marine... (craigslist.org)



looks like a rev 4 prop..


1632527792833.png
 

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how much speed did you loose???

Lost 0 MPH on the top end. Runs the same top speed at 200 RPM less than my B1 24. That's why I said it runs like a B1 25, would or should.

A Rev4 is a larger diameter than a B1.
 

Riverryder

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your post doesn't make mathematical sense???? with a three blade, you step down a pitch, that's the norm... steping up to a 24p you would loose about 700 rpms,... but if it was over reving... could make sense... tell us more... speed,. and rpms both props.. prop selection is mathematical...as if if it's over reving... go up...

230 eagle dart heads mild cam 454 bravo 1
21pitch 3 blade I was 69 ish at the top gps
24 pitch bravo 1 65 at the top.

we both live in Vegas. I would gladly take you out so you can show me the ins and outs. Beer and food on me.
I met you when I was a teenager. Use to play hockey with your youngest boy.
 

2FORCEFULL

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230 eagle dart heads mild cam 454 bravo 1
21pitch 3 blade I was 69 ish at the top gps
24 pitch bravo 1 65 at the top.

we both live in Vegas. I would gladly take you out so you can show me the ins and outs. Beer and food on me.
I met you when I was a teenager. Use to play hockey with your youngest boy.
need to know rpms....and what boat???also I have a couple rev 4S
 

2FORCEFULL

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Yeah ran a Rev4 on my 210 also. Great all around on certain boats compared to B1.
my son has a labbed 24 on his,.. he said the 23 rev bogged it down too much... he's running a 454...
 

2FORCEFULL

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230 eagle dart heads mild cam 454 bravo 1
21pitch 3 blade I was 69 ish at the top gps
24 pitch bravo 1 65 at the top.

we both live in Vegas. I would gladly take you out so you can show me the ins and outs. Beer and food on me.
I met you when I was a teenager. Use to play hockey with your youngest boy.
let me know when your headed out to mead next, or come to havasu...


also, sounds like the 24 is too much prop????


sum ting wong with numbers grass hopper...

CALCULATOR
  • PROPELLER PITCH CALCULATE 21
  • GEAR RATIO CALCULATE 1.50
  • ENGINE RPM CALCULATE 5200
  • ACTUAL SPEED(MPH) CALCULATE 69
  • PROPELLER SLIP CALCULATE 0
Find My Propeller
 

RCDave

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LOL.... that a salesman's quote... "
And A tremor spanks a rage in the rough....no f'n way...

Have you ridden in a Tremor? It has a 24 degree v all the way to the transom. I've spent time in both the Rage and Tremor. The rage is a much smaller boat with less Deadrise. The Tremor crushes the Rage in the rough.

The Tremor in Mohave in 3 to 4 foot windswept waves in the Tremor through the basin. 55 to 60mph skimming the wave tops on the transom. BiG fun..

The Rage. Running for shore......
 
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