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Thread: '09 G8 injector flow rate

  1. #1

    '09 G8 injector flow rate

    Trying to adjust the IFR for 65# Fast injectors. This is the first '08/'09 I've needed to change IFR on. Could some on please explain this new IFR table or has anyone made a speed sheet to work with it. It looks like the table will only go to 63.49. I'm attaching the file I'm working with.

  2. #2
    HP Tuners Support
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    The pcm has a hardcoded limit of 63.5lb/hr
    It doesn't have to be perfect, it just needs to be done in two weeks...

    A wise man once said "google it"

  3. #3
    Sorry about posting in the wrong spot, and yeah I saw 63.49 was the limit.

  4. #4
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    Hmmm, are you *sure* it has a limit? GM doubled the IFR limit on some OSs in '09 (i.e. C6). I don't have my laptop with me to look at your file, but can you copy your stock IFR table and paste it here? I'd like to know if it is reading 1/2 of what the IFR values truly are.
    Formerly known as RWTD

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  5. #5
    HP Tuners Support
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    The G8 OS isn't one of the ones GM doubled the limit for unfortunately.
    It doesn't have to be perfect, it just needs to be done in two weeks...

    A wise man once said "google it"

  6. #6
    We got it going with a WB in the exhaust, but I'd love to see other tunes with big injecters if anyone has one.