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Thread: 44lb injectors

  1. #1
    Tuner
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    44lb injectors

    Proable a stupid question but..

    Silverado 03 5.3 with mods.

    I'm putting 44lb injectors in my truck.
    My stock ones are 24.45lbs.

    The new injectors are 44lbs at 58psi and 38lbs at 43.5psi.
    (All numbers are rough numbers)

    At cruise my fuel pressure from my autometer guage is at 43 roughly
    and at acceleration and wot my fuel pressure is at 58-60 psi.

    Now when i enter my injector flow rating in the table what do i enter the wot fuel pressure rating or the cruise rating. Right now the fuel flow is the same across the table. I have a return system.

  2. #2
    Супер Модератор EC_Tune's Avatar
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    You have a return-to-tank system so use the 58PSI settings across the board.
    Always Support Our Troops!

  3. #3
    Tuner
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    Thank you very much just had to make sure.

    Also any body know what is the closest thing to a direct fit high out-put fuel pump for a 2003 silverado.