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

Offshoreonly.com (https://www.offshoreonly.com/forums/)

- General Boating Discussion (https://www.offshoreonly.com/forums/general-boating-discussion-51/)

- - any math formula to get mpg or gph (https://www.offshoreonly.com/forums/general-boating-discussion/55730-any-math-formula-get-mpg-gph.html)

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.

All times are GMT -5. The time now is 06:01 PM.