Originally Posted by
Rod-Tarry
It can be calculated from basics if you know the b.s.f.c of the fuel. Its something I do for all the fuels I use. I can go into the maths but most just glaze over & think im some sort of gimp. For instance pump fuel has a a bsfc of .6 a decent race fuel .8 & the FTW Purple I will use is 1. It means the Purple will use 67% more fuel so you cant just assume what you say above.
Done a google search this may help- Use .65 for pump fuel & .8 (80%) for duty cycle.
http://injector-rehab.com/shop/Injec...Selection.html
Thanks!
I've used the link and used a BSFC of 0.65 and duty cycle of 80%. In that case 350 bhp would require 71lb / 746cc/min injectors. But in practice 350 bhp is possible with the 803 injectors which are only 382 cc/min. I understand you'd be able to go above the 80% duty cycle, but this is almost a difference of a factor 2.
@Cossynut, tuners are also allowed to answer my questions here.
But I don't want to bother them with generic questions.