Home › Forum › Ask A Member › what size prop should i try next??? › Re: what size prop should i try next???
Its all trial and error. You can plug all your data into a handy little calculator to tell you the correct pitch for your boat, but they aren’t very accurate. Trying different props and noting your results against a tach is the best thing you can do. Used props are fine, but make sure it is in nice condition. By nice I mean like new. A few nicks and dings make a huge difference in performance as does a smooth vs rough texture. Finally, the big round blade props of the 1950’s OMC’s are so much better for pushing heavy loads than the newer style props with the narrow blades. I think 9 1/4" is a good next step. Besides, even if it over revs it might still be useful for the days when you take a third passenger.
Wayne
Upper Canada Chapter
uccaomci.com