Join Date: Feb 2010
Thanked 17 Times in 15 Posts
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Re: Do I have the right size prop?
Looks to me like you should have a bit less pitch on that prop; maybe 13/9 or 13/8. You should be able to achieve max RPM with the throttle wide open (that your engine can't quite get there in neutral probably means that the engine governor needs a bit of an adjustment). Also, it looks like your boat gets up to hull speed quite a bit below max RPM, I would think you would want to be a little closer to max RPM when HS is achieved (maybe 85-90% of max rpm). However, you're close enough to the ideal that it may not be worth messing with it.
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