24 lb. FMS injectors = rich on stock tune?
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24 lb. FMS injectors = rich on stock tune?
I just replaced my stock 24 lb. injectors with 24 lb. FMS injectors, and I've noticed a slight drop in gas mileage. Is there a flow difference between my stock and FMS injectors?
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Re: 24 lb. FMS injectors = rich on stock tune?
Some Ford injectors are flow rated at 2.7 bar (39.15 psi), so they will flow about 5% extra when used in the 3.0 bar (43.5 psi) LT1 fuel system. However, the PCM should be able to identify this small increase in fuel flow, and adjust the long term fuel corrections to compensate. They will flow 5% extra at WOT/PE mode, and make your already "too rich" stock programming even richer.
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