Switching to 4 blade???

syuhas85

Seaman Apprentice
Joined
Jul 30, 2011
Messages
37
Hello all,

I have a SeaRay 225 Express Cruiser with merc 228 5.0l, Alpha 1 drive

As of the first of the season it was running great WOT 36mph @ 4400rpms... As time went on each time we go out she's getting slower prop is slipping badly. Good News time for an upgrade!!!

I was looking at going from a 3 Blade 17P aluminum to a 4 Blade Aluminum my question is rule of thumb is to decrease by 1p going to 4 blade, if I keep the same pitch and goto 17p 4 blade will it bog the motor down to much.

Any advise will help thanks!
 
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