Originally Posted by DarkhelmetRT
how do you get 375hp from a 21lb injector? my calulations say you need a 39lb inj on an n/a using .50 bsfc
Same way you can get away with 215 HP with a 15 lbs/hr injector. Calculators are good starting points, but don't tell the whole picture.
Idealy I would run a 30 lbs/hr injector for anything over 350 HP, but that isn't going to be much of an issue on these NA motors.
The HP numbers that I quoted were for a v8, sorry about that. A 21 lbs injector would be good to about 325ish.