Offshoreonly.com - any math formula to get mpg or gph

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32 thunder

07-29-2003 03:03 PM

any math formula to get mpg or gph

Does anybody know a quick way to figure the mpg or gph for my 310 sunsport 454's bravo1 and 8200 dry weight 160 gallons of gas. I can cruise at about 3400 rpm

chriscraft240

07-29-2003 03:31 PM

I heard something like 10% of your horsepower,then divide by 2 would be your cruise gph. Give or take a gallon or two. West Marine has a formula on the web.

cobra marty

07-29-2003 05:11 PM

HP times 0.08 = GPH at WOT for EFI and

HP times 0.10 = GPH at WOT for carb.

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