I want to change prop

[Fordracing17]

I would like to install a smaller prop. I would like to get out of the whole quicker. It is a 1994 mercury xri 200. Current prop is a 14 1/4 x 25 top speed is 70. I would like a little quicker on plane thanks in advance.

 

[SkiDad]

Well if you are hitting 70 GPS then your rpm is probably close to 6000. If you drop down to a 23 pitch you might have to watch your rpm.

Do you know your current rpm and type of prop, that will help the guys here give you better advice.

 

[jimmbo]

Is your current prop a mercury prop? If so, which line of prop, does it have the Performance Vent System? If it does, changing the size of the vents can make a difference in your holeshot? Is your engine mounted on a jack plate?

 

[Fordracing17]

Sorry to sound dumb but I'm new to the big motors it is a rapture prop it was on the boat when I purchased it. I'm running bout 5800 rpm it is not on an adjustable jack plate it's fixed. I would like to get on plane quicker I'm assuming I will have to sacrifice top end speed I have another prop that came with it also I will have to look what brand but it is a 14 3/4 x 25. Both are 3 blade stainless thanks

 

[steelespike]

Do you trim down for hole shot?Any weight you could move forward?
You might consider a ventilated prop.
Its possible your present prop has bow lift
According to my info your already over reving.
A simple pitch reduction could might put you way over.
You might consider a 4 blade in the same pitch.
It will probably cost some top end.But should improve hole shot
and stay on plane easier at reduced throttle may respond better around the dock.

 

[Fordracing17]

Yes I trim down for take off. So the other prop that I have the 14 3/4 x 25 isn't really gonna make a difference I was going to install and try but I don't want just because thanks for your help

 

[jimmbo]

your spare prop has more diameter. If you are currently over revving with a smaller dia prop, the extra area should give you better holeshot and drop your rpm

 

[Fordracing17]

I will install my other prop and try thanks for everybody's help