injector constant question
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From: Long Island New York
Car: 89 Formula 350
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injector constant question
this might be a stupid question but i was wondering if you are supposed to set Fuel Injector Constant to the fuel pressure of the injector u are running? for example I saw the stock fuel injector constant in my ARAP bin was 22.36 and I had 22lb stock injectors. Now I'm running Ford 24lb injectors I set the constant to 24 is that correct? Seems to be running well.
Joined: Jul 1999
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From: Orange, SoCal
Car: 1990 Pontiac Trans Am
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Re: injector constant question
Its not the fuel pressure but the injector size is what you set the constant value to. You have it right but called it the wrong thing. For 22lbs injectors, set it to 22, and for 24lbs injectors, set it to 24. However, if you increase the fuel pressure above the stock 42 PSI, then you will probably need to raise the constant a little bit to compensate. 24lbs injectors at 42 PSI might act like 24lbs injectors, but at 48 PSI they might act like 25 or 26lbs injectors. Make sense?
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