charlie2020
08-30-2002, 09:04 PM
Formula for fuel pump size requirements
These figures are for gasoline engines and figured assuming a .05 BSFC ( .5 lbs. of gasoline is needed make 1 hp for 1 hour). If you're in doubt, it's better to have more fuel flow then too little.
The Formula to Figure your fuel flow requirement is:
(max hp x .05 bsfc) / 6 = GPH
You divide by 6 because gasoline weighs 6 lbs. per gallon. For example:
(550 hp x .5) / 6 = 45.8 GPH rounded up to 46 GPH
These figures are for gasoline engines and figured assuming a .05 BSFC ( .5 lbs. of gasoline is needed make 1 hp for 1 hour). If you're in doubt, it's better to have more fuel flow then too little.
The Formula to Figure your fuel flow requirement is:
(max hp x .05 bsfc) / 6 = GPH
You divide by 6 because gasoline weighs 6 lbs. per gallon. For example:
(550 hp x .5) / 6 = 45.8 GPH rounded up to 46 GPH