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Thread: 2008 GT500 - Return Fuel, FIC 1000

  1. #1
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    Jun 2020
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    2008 GT500 - Return Fuel, FIC 1000

    2008 GT500

    Just changed to return fuel system. Fore hat, 2 hellcat pumps, -8 feed & return. Car was tuned with HP previously, stock pumps & injectors - ran fine.

    FIC 1000
    93 octane
    JLT 127
    Trinity Blower

    FPR @ 55 with no vacuum. Haven't been able to get it out of the shop yet but having an odd issue with going extremely lean at tip-in free revving (20-25%). Planning to log it tomorrow. Will clear up as MAF voltage settles. Can hold constant RPM fine with reasonable STFT. MAF transfer unchanged from tune prior. I know injector values have been input correctly according to FIC data. Can someone take a look at this to see if I am missing something obvious?

    shelby4ret2.hpt
    Last edited by traceytuning; 12-23-2023 at 07:13 PM.

  2. #2
    Potential Tuner
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    Jun 2020
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    It just needed more fuel. Imagine that!