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Old 04-30-2009, 08:42 AM
Cobra #3170 Cobra #3170 is offline
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Default Fuel pressure

Quote:
Originally Posted by RICK LAKE View Post
kobrabytes Len I am running alpha-n on my car since the 482 is in the car. My laptop battery crapped out and kill my laptop. I only have a sloppy disc right now and no way to transfer it to anything. The other thing is every motor is different and my custom setup will not help you at this time. I am running 50 pound injectors with 52 psi fuel pressures. At WOT my duty cycle is 61%. Idle pressure is 44 psi fuel. Fred Kemmer may be able it shoot you a copy of his setup. He's running XFI and 58mm's. May computer in the car is an old Speed-Pro, about 10 years old. Rick L.
Rick,
why is your idle pressure lower than WOT pressure? My regulator holds pressure at the same level throughout the load range. Do you have lower alternator voltage at idle?
I am running 65# injectors at 45 psi with a Bosch inline pump fed by a Carter electric and the pressure stays at 45 psi no matter what I do with load. I have a Denzo 65 amp 3 wire feeding a 6AL, electric water pump, FAST Sequential EFI, both pumps, PI data logger and a 16" electric fan so fairly large electrical load. I also use Alpha N because cam overlap does not allow
use of the MAP sensor.
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