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Author Topic:   50 HP Honda on 15 SS LTD
jameso posted 06-20-2003 08:43 AM ET (US)   Profile for jameso   Send Email to jameso  
I am buying a 50 HP Honda for my 'new' 15. What prop should I be using, also any comments about fuel economy or general engine performance are appreciated.
Jim Armstrong
Peter posted 06-21-2003 06:53 AM ET (US)     Profile for Peter  Send Email to Peter     
Plugging in 6000 RPM, 5% slip, 37 MPH and 2.08:1 for the final drive ratio, the prop calculator (see ) suggests a 14 inch pitch.
half shell posted 06-22-2003 01:28 PM ET (US)     Profile for half shell  Send Email to half shell     
Excellent choice of engine my montauk had 11.25 x 13 ? on the 50 Honda good luck.
Harry B Yashe posted 06-24-2003 01:33 AM ET (US)     Profile for Harry B Yashe  Send Email to Harry B Yashe     
I can't give you much in a technical sense. I have a 1982 15' Whaler with a 1996 50HP Honda. At 5500 rpm with myself and 300 lbs. of fishing gear, my speedo indicates 33mph, stock prop. I average about 8 mpg. Its wonderful not to buy 2-stroke oil and putter through no wake zones without worrying about fouling the plugs. But the best part about the Honda is the peace of mind that it will start and run EVERY time. The quality of my fishing time has improved tremendously since bolting the Honda to the Whaler's transom.
Duckin Whalers posted 06-24-2003 01:52 AM ET (US)     Profile for Duckin Whalers  Send Email to Duckin Whalers     
If, you are re-powering, consider a 70 for the 15'. I have a 13' with a 50hp and I think it could use more. With a load(the way I use it) the 50hp on a 13' isn't always enough. I have spent alot of time on my friends dads' 15' SS with a 70hp and wouldn't go with less than a 70hp unless, I got one for a good deal with the 50hp already stuck on it. Put gear and people in the boat and it saps the ponies out fast.
jameso posted 06-24-2003 08:53 AM ET (US)     Profile for jameso  Send Email to jameso     
Harry, I think about 36 will be max with this combo.
Duckster, OK a 70 would be great, but I usually run with myself and a couple of kids or one other adult. Don't carry a lot of junk. I have owned four 15s three had 50 HP two stroke engines, IMHO this is a great combo, good power to weight ratio.
Thanks, Jim Armstrong

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