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Author Topic:   Sport 11 power upgrades
Jeff1 posted 05-03-2001 09:46 AM ET (US)   Profile for Jeff1   Send Email to Jeff1  
Hi Folks -

What is the correct prop pitch for a Tender 11 "Sport" fitted with an OMC 9.9 horsepower outboard?

Will upgrading OMC 9.9 to a 15 horsepower have any significant effect on performance, or is a 20 horse engine required to see any real change in performance?


Erik posted 05-03-2001 05:16 PM ET (US)     Profile for Erik    
With a 15hp Yamaha (tiller) the boat will hit about 26mph. At that speed the boat starts to dance because the middle hull is slightly bigger than the 2 outer keels so the boat tries to balance on the middle the end result is dancing buy it not that bad.Thats my theory.Every weekend there is about 3 of them in the bay near my house racing up and down.
pist2348 posted 05-12-2001 09:56 AM ET (US)     Profile for pist2348    
I had a 11' Sport with a 15 hp, 20 hp, and 25 hp. I think the 20 hp is the best engine for that boat. I think the 15 hp is just a glorified 9.9.

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