Most that I have seen are running a 23p 3 blade.. That would be a good start then can tune from there.

 

I would think a 21p or a 23p mirage plus would be a good place to start, or maybe a 4 blade 22p bravo 1. I also live in Muskegon and have a 23p mirage plus on my 22' powerquest. my boat weighs 3300 lbs and has a 385 hp 454 mpi magnum and it works great. 74.5 mph on gps. How much does your boat weigh, and what horsepower 454 do you have? That makes a big differance. I would get ahold of Throttle-up.com and ask them. They are great and helped me out with all my questions.

 

raizorsedge,

74.5 GPS with a Mirage 23P .... at what RPM ?

 

raizorsedge,

74.5 GPS with a Mirage 23P .... at what RPM ?

3600.. CFM told him how to read the speed & RPMs :laugher: :laugher:

 

around 5100 and then it hits the rev limiter.

 

3600.. CFM told him how to read the speed & RPMs :laugher: :laugher:

CFM gave me the same info and it still don't add up.

That damn CFM.... where the F is that big ol' hillbilly

 

It's in the microboat section under JJ Quest post. I bought it from him last fall. He clocked it at almost 73 mph. I don't know maybe our gps's are screwed up or something? Engine is all stock with a hardin marine flame arrestor and straight thru exhaust no baffles. No, I'm not trying to be a smart @ss about the gps statement.

 

around 5100 and then it hits the rev limiter.

Congrats! You have the first setup known to man with negative slip.

 

raizorsedge -

Might want to check your equipment. 23P at 5700 RPMs with 10% slip would get you to around 74.4'ish. Again that's at 5700 Rs.

At 5100 RPM with 0 (zero) slip you'd be at about 74 MPH. No such thing as 0% slip, especially with a 3 blade.

 

raizorsedge -

Might want to check your equipment. 23P at 5700 RPMs with 10% slip would get you to around 74.4'ish. Again that's at 5700 Rs.

At 5100 RPM with 0 (zero) slip you'd be at about 74 MPH. No such thing as 0% slip, especially with a 3 blade.

What about the outdrive RATIO???that would bewith a 1.32
I use this
http://www.go-fast.com/Prop_Slip_Calculator.htm

 

I have a nice Revolution Plus 4 blade that should work good for ya, Mercury Revolution Plus, labbed I believe it is a 22, but would have to check to be sure.

 

opc1 op:

 

opc1 op:

:laugher: opc1

 

Welcome to Speedwake!!

Its good to see some more local boaters on here!

 

I have a 2000 Baja Islander 212 with the 7.4L (310hp) Bravo 1 drive. The ratio of my bravo 1 is 1.50. My boat came with a 23p Mirage plus 3 bladed prop. It was a good prop but would not let me get into WOT RPM range of 4400-4600. I think the most I got after trimming was 4200 rpm. I bought a 4 bladed 22p stilletto prop, as we spend most of time pulling tubes, and wake boards. This prop gave me better holeshots, allowed me to reach 4400 rpm, and I got the same speed as the 23p three bladed prop. (58 MPH) I really don't care how fast my boat goes, as I said, I spend most of the time pulling tubes around 22 mph, 2200 rpm. When I am cruising with the wife and kids I set about 3200 rpm. I'm considering buying the same prop in a 20p and see what that does for my holeshot. I also thought it might be easier on the engine with all the starts and stops I make. I bought my prop at Dan's discount prop on the internet, cheapest I found.

 

I would think the 23p Mirage would be a good prop, but you may need to tune it to get your RPMs up... May want to try a Bravo and the Hydromotive as well...

 

You should get a 21 Mirage plus. If that works for you then you can spend a little money and have the BAJA (double) cup, and lab finish put on it.

 

I second the 21P Mirage Plus. Your boat has the
same HP to weight ratio as my two boats did and
they ran best with the 21P. You will get your 4600
RPM's at WOT also.

 

21p REV4 4 blade prop. mirage plus has a crappy hole shot

 

21p REV4 4 blade prop. mirage plus has a crappy hole shot

A 4 blade prop is slower on top end on a boat with a deep drive. I have been running mirage props and I have never had a problem getting out of the hole. If all you do is tube and ski a 20 pitch 4 blade prop may work for you.

 

Get youself a cheap 21p 3 blade alum...slap it on and post your result's...In the mean time make sure your tach is within 100 rpm..That's a start. Result's aka at WOT what is your rpm....if you have a gps unit that would be nice..postng a gps verifed speed

 

Get youself a cheap 21p 3 blade alum...slap it on and post your result's...In the mean time make sure your tach is within 100 rpm..That's a start. Result's aka at WOT what is your rpm....if you have a gps unit that would be nice..postng a gps verifed speed

Why would he get a cheap aluminum prop? That wont give him any solid info that he needs for a good stainless. Aluminum reacts sooo much different than a stainless in every way.

 

I have a nice Revolution Plus 4 blade that should work good for ya, Mercury Revolution Plus, labbed I believe it is a 22, but would have to check to be sure.

Do you still have it???How much???Any pics??Her is my email bndschultheis@comcast.net