1987 vip vindicator 2250 prop ?

[berlin76]

i just purchased a 1987 vip vindicator with a cuddy boat is 21' feet long it has a 5.7 with the alpha one outdrive. my question is what prop should be run on this boat to get the most out of this boat not so much looking for max speed as i am take off and being able to pull a tube or skier. anyones help is greatly appreciated.

 

[berlin76]

Re: 1987 vip vindicator 2250 prop ?

could someone just tell me what prop is supose to be on this boat when it was new the prop that came off isnt marked so i have no way of knowing if it is even the original one. thanks again for all your help

 

[CBRep]

Re: 1987 vip vindicator 2250 prop ?

If memory serves, I think it was a 23P Stainless.

As boats got lighter later in the years, it was changed to a 25P.

The real way to prop a boat is to take it to a dealer that is on or close to the water. And put a test prop on it and test run it. If you hit max engine rpm with throttle to spare, then you need a taller prop (more pitch). Hole shot, usually will need a lesser pitch prop or use a 4 bladed prop. 3 Bladed gives best top end.

 

[berlin76]

Re: 1987 vip vindicator 2250 prop ?

so 23p how about diameter unfortunatly i dont have the a boat shop that has test props near by and i need to put something on it. ive been leaning towards alluminum as well will that change the pitch i should use.

 

[CBRep]

Re: 1987 vip vindicator 2250 prop ?

It would depend on the drive unit you have.

Again, you really need to take it to a dealer for assistance with this issue. Your altitude and the way you load out your boat will make a big difference.

Aluminum vs Stainless, the jury is still out on that. Theoretically, they should be so close as it would be non-issue, provided both props had the same size and shape to the cups.

And personally, I think that may be the reason why stainless has generally out-performed aluminum. To increase cup strength, they put more curve in the cups (and thicker) on aluminum. Where-as stainless, had a more "slip through" profile that allowed more efficiency. Mostly on top end and cruise. A prop that has best efficiency for top end usually has the worst for hole shot and vis-versa.