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Thread: a few ?s

  1. #1
    Join Date
    Feb 2004
    Location
    Western, KY
    Posts
    433
    Ok here lately ive been hitting my target A/F which is scaring the hell out of me B/c i under stand that under a WOT condition you should be around 12.1:1, @ WOT im getting like 14:1-14.9:1 A/F I have wide band monitoring and seeing the high a/f ratio. my question is my injectors are at maxed out on duty cycle. Could I put an external FPR and raise the presure to help get the 12.1:1 A/F back at WOT?
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  2. #2
    Join Date
    Nov 2003
    Location
    Denton Texas
    Posts
    20,540
    Check your fuel pressure. Those things should be able to dump enough fuel in there to flood the engine. You should have 58 lbs of constant fuel pressure. Dips below 53 lbs mean you have a bad regulator or pump. Unless you're pushing a turbo or blower stock injectors should not be maxed out.
    See my truck data in the "My Garage" section here... http://www.ls1truck.com/forums/my-ga...tml#post191709

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