Results 1 to 3 of 3

Thread: fuel preasure

  1. #1
    Tuner in Training LIMRIK's Avatar
    Join Date
    Feb 2012
    Posts
    12

    fuel preasure

    Sorry for the dumb question but, after converting ford injector specs to gm specs and flashed into pcm do I run fuel pressure regulator at the ford 39.1 psi fuel pressure or the higher gm fuel pressure ?
    Is the converted calibration formatted for ford or gm fuel pressue
    Last edited by LIMRIK; 07-17-2014 at 01:04 PM.

  2. #2
    Senior Tuner
    Join Date
    Feb 2009
    Posts
    1,931
    If you converted injector data to higher gm pressure than set your fuel pressure regulator to the higher gm pressure.

  3. #3
    This example might answer your question:

    Injector XY flows 50lbs/hr @ a fuel pressure of 50 psi. Obviously having higher fuel pressure is going to "push" the fuel out faster, thus raising the effective flow rate of the injector. At 60 psi, injector XY now flows 54.8lbs/hr. Thus, if we are operating our vehicle at the 60psi pressure, we would use the 54.8 value, but also be sure to scale it correctly in the injector flow rate table.

    Does that help you out?