#20533, "RE: fuel pressure w/ larger injectors" In response to Reply # 0
um yes that is low, when i was runnin 315's i was running 100 psi at 9 psi boost, if you use the fuel injector flow rate calculations and a .80 duty cycle you should be near the proper flow rates, but running at 65 psi is pretty dang low! lates james
#20534, "RE: fuel pressure w/ larger injectors" In response to Reply # 1
If you are using a S-AFC,you can assume a DC of 0.80 or whatever. If you aren't using a S-AFC, you must assume a DC of 1. The stock ECU will run the injectors near 100% if you don't trick into doing otherwise (S-AFC). The assumed DC will make a big difference in the fuel pressure that you aim for. I just wanted to state that, in case either of you didn't take that into account.
Corbin
'95 ESI-T HRC+FMIC+ETC...
Gimme fuel...Gimme fire...Gimme that which I desire
#20536, "RE: fuel pressure w/ larger injectors" In response to Reply # 3
no one else has run bigger injectors? im just trying to compare what everyone else is running to what im doing. my pressure seems low, but egts are fine and a/f says im way too rich (1.0v :O )
#20537, "RE: fuel pressure w/ larger injectors" In response to Reply # 4
used your page corbin, the example helped a lot. figured i need ~70psi of fp w/ 315cc injectors @ 9psi of boost, figuring a 100% duty cycle since i have no SAFC