Help on tuning 30 LB injectors in my 5.0

Discussion in 'Fox 5.0 Mustang Tech' started by pierce.nathan, Feb 18, 2010.


  1. pierce.nathan

    pierce.nathan New Member

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    First off I have no experience on tuning vehicles when it involves upgraded fuel injectors. My mustang contains the following:

    185cc intake 70cc exhaust aluminum cylinder heads
    cold air
    75mm throttle body
    bbk ssi intake manifold
    E303 Cam
    1.7 roller rockers
    255 lph pump
    35-70 psi adjustable fuel regulator
    30 lb injectors

    I don't know if the 30 lb fuel injectors are too much, but I thought that I might be able to just lower the fuel regulator to lessen the injectors. Any information would help. thanks
     
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  2. vristang

    vristang Advanced Member

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    Get a calibrated MAF or tune the ecu with a chip.

    You won't correct for 30's with the fuel pressure....
     
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  3. pierce.nathan

    pierce.nathan New Member

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    I have a BBK 76mm MAF which is calibrated for cold air and 30 lb injectors. Is that really all I have to do? What should I set the fuel regulator to? I know that at stock for my car, they are set to 39psi
     
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  4. vristang

    vristang Advanced Member

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    Yep, set it to 39psi.
    You shouldn't have to change it...
     
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  5. 2002BLGT

    2002BLGT Well-Known Member

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    If you can get the air/fuel checked with a wideband just to make sure the calibration is good on the meter , they are not always 100 percent perfect out of the box
     
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