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Thread: Filling in Flow rate on #57 injectors

  1. #1
    Tuner in Training
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    Filling in Flow rate on #57 injectors

    I am having a issue with Flow Rate vs PSI delta on my Beta software. Greg's DVD uses Flow Rate vs kPa for the injectors. My OS has it listed as below. Very confusing. Delta pressure is flow from begining and at the end.....Need some help with this one. Cant just fix by changing from imperial to metric. X axis has different spread.

    Any suggestions.

    2008 GMC 5.3/cam/front mount T-76.

  2. #2
    Senior Tuner IDRIVEAG8GT's Avatar
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    Wait. What? You mean that you've hit the Injector limit cap and can't get around it? The trucks are labeled just like this, along with the Vette's and Camaro's and whatever else you have.

    You need to open your data spread in an excel format, then cut it in half. Paste the new data to the IFR table. You will then make up for the differences in injector flow by doubling the stoich table. Voila, Good to go. Everything else stays the same.

    I'm not sure what half of everything else you said meant.
    Gray Ghost- The abomination. 2007 Chevrolet Silverado CCSB. 98mm turbo, nitrous, 428LSX, Rossler 80E with a brake. Finally finished. 23 psi, no numbers, Slow as hell.

    PBM G8- Aluminum 364, twin Precision 67/66 turbos, 6L90 trans swap, CTS-V/Vaporworx fuel system, slowly making progress.

    Dads 2011 CTS-V- Stock bottom end, stock heads, LS9 cam, pullies, ported blower, ported TB, D3 goodies, and lots of nitrous.
    618/618 motor
    906/862 spray

    Caterpillar 50 Forklift- Duramax swap

  3. #3
    Senior Tuner IDRIVEAG8GT's Avatar
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    If the data you have listed is in kPa not psi, then you will of course need to manually find the difference between one certain kPa column and then apply it to the corresponding psi, and adjust your data accordingly, then do what I said above to make it work.

    It's long and complicated I know, but hopefully we will get someone in here with an excel converter file for you to use which makes the math work easy.
    Gray Ghost- The abomination. 2007 Chevrolet Silverado CCSB. 98mm turbo, nitrous, 428LSX, Rossler 80E with a brake. Finally finished. 23 psi, no numbers, Slow as hell.

    PBM G8- Aluminum 364, twin Precision 67/66 turbos, 6L90 trans swap, CTS-V/Vaporworx fuel system, slowly making progress.

    Dads 2011 CTS-V- Stock bottom end, stock heads, LS9 cam, pullies, ported blower, ported TB, D3 goodies, and lots of nitrous.
    618/618 motor
    906/862 spray

    Caterpillar 50 Forklift- Duramax swap

  4. #4
    Tuner in Training
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    Thanks!!!

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  6. #6
    Senior Tuner IDRIVEAG8GT's Avatar
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    Thank you for finding that. That's just what I was talking about.
    Gray Ghost- The abomination. 2007 Chevrolet Silverado CCSB. 98mm turbo, nitrous, 428LSX, Rossler 80E with a brake. Finally finished. 23 psi, no numbers, Slow as hell.

    PBM G8- Aluminum 364, twin Precision 67/66 turbos, 6L90 trans swap, CTS-V/Vaporworx fuel system, slowly making progress.

    Dads 2011 CTS-V- Stock bottom end, stock heads, LS9 cam, pullies, ported blower, ported TB, D3 goodies, and lots of nitrous.
    618/618 motor
    906/862 spray

    Caterpillar 50 Forklift- Duramax swap