Fuel calculation

[Stayt`ie]

have just spent the last cuppla hours trying to find the "fuel usage calculation" posted on this site by, i think, Greg Watters, ,, can somewon help me out here please

[penny]

To produce 1 hosepower for 1 hour requires approximately 0.5 lbs of gasoline. If you ran a single-cylinder engine, like the one in your lawnmower under load of 1 horspower for 1 hour and weighed the fuel tank before and after, the tank would weigh approximately 0.5-lb (five tenths of a pound) lighter. Therfore the equastion for fuel flow is 1H.P.= 0.5-lb of fuel, per hour. This expressed on the dyno sheet as B.S.F.C (Brake Specifique Fuel Consumption). Incidently the figure for alcohol is approx 1-lb of fuel, per h.p. per hour. barry grants gas can test.

[Greg Watters]

this one http://www.witchhunter.com/injectorcalc1.php4

i just rough it out at around 5cc/hp/min on gasoline and 12.5cc/min methanol,and always allow some spare when figuring injector size or fuel pump flow. Also blown is a bit thirsty so NA could probably reduce those figures a little

[Stayt`ie]

Thankyou Gentleman