Quote:
Originally Posted by NBR
Dividing hp by 10 is way to high. I have a 19' bass boat with a 150. Boat tests result in 4mpg at 4400 rpm and that is the high.
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For a 4 stroke, or an injected 2 stroke, I'd go with dividing by 8. For a carbureted two stroke, I bet 10 is pretty close.