Prop Advice - Merc 50hp - 4 stroke

jtackle

Cadet
Joined
Jul 4, 2006
Messages
7
I have a 17 ft. alumuminum fishing boat with a 2002 Merc - 50 hp 4 stoke.

WOT at 5000 rpm (with a sinlgle person). Hits about 30 mph with 3-4 people. Pleased overall with the peformance, but hole shot is slow compared to my old 50 hp 2 stroke.

When the boat is really loaded (occasionally when hauling), it just cannot get to plane. Othertimes, even with 5 people, it does plane, although it can be a bit slow to get there.

Current prop pitch is 15. Wondering if I should change to a 13? (or another pitch??)

What will I get and what will I give up?

Thanks for any and all advice.
 

walleyehed

Admiral
Joined
Jun 29, 2003
Messages
6,767
Re: Prop Advice - Merc 50hp - 4 stroke

I think you should be much closer to 6000RPM on that engine...if all you can get is 5k, that would explain poor hole-shot with a load.
 
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