Injector formula is:
(bhp x bsfc) / (No. injectors x DC)
bhp = peak crank horsepower (note this is PEAK power at crank not whp, not average, etc.)
bsfc = which is the 'brake specific fuel consumption"; basically .50 for blown engines, .45 for NA
No. of injectors is 4 for most of us
DC = duty cycle which should be .85
so...
(bhp x .5) / (4 x .85)
should give you to lbs/hr fuel injector size (always ROUND UP to nearest available size).
My guess is you will want to keep your 30's or maybe go to 36 but you will need a good estimate of the amount of hp you are pulling at the crank which you should be able to derive from your upcoming dyno run.
(bhp x bsfc) / (No. injectors x DC)
bhp = peak crank horsepower (note this is PEAK power at crank not whp, not average, etc.)
bsfc = which is the 'brake specific fuel consumption"; basically .50 for blown engines, .45 for NA
No. of injectors is 4 for most of us
DC = duty cycle which should be .85
so...
(bhp x .5) / (4 x .85)
should give you to lbs/hr fuel injector size (always ROUND UP to nearest available size).
My guess is you will want to keep your 30's or maybe go to 36 but you will need a good estimate of the amount of hp you are pulling at the crank which you should be able to derive from your upcoming dyno run.
