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Author Topic:   Prop for 16'7" 115hp
TIMEBOMB posted 04-17-2001 09:39 AM ET (US)   Profile for TIMEBOMB   Send Email to TIMEBOMB  
I'm wondering if anyone has any experience running a 115 hp motor on a 16/7 whaler. I have a 1963 hull in sound shape. I realize it is rated for 100 hp max, but given the circumstances, the 1977 Evinrude 115 hp is all I have to work with until I can save up for a more appropriate engine. This engine does not currently have a prop and the tach wiring does not seem to work so I have no prop and rpm info to start with. I am not looking for a speed boat, I just want a prop that won't over rev. Anyone have any diameter and pitch reccommendations or any tricks on how to read RPM without a typical OMC tachometer?
compounder posted 04-17-2001 07:00 PM ET (US)     Profile for compounder  Send Email to compounder     
T.B., I ran an Evinrude 115 on my Montauk for nearly 20 years.

I feel the boat was a little over-powered, but only at high speeds. The hole shot was quick but controllable. Hence, I have re-powered with a 90 hp.

My 115 came with a 19in pitch prop which was fine for general use. However, my 6'3" 200+lb
son bogged even the 115 when trying to get up on a slalom ski so we bought a 17in pitch prop and used this when skiing.

You can get a product called a "Tiny-Tach" which easily attaches to your engine and will act as an hour meter as well as tachometer. Part # TT226NR-2C. Usually around $35-40 and available on the 'net.


TIMEBOMB posted 04-18-2001 12:39 PM ET (US)     Profile for TIMEBOMB  Send Email to TIMEBOMB     
Joe, thanks for the info. I'll look around for the tach.

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