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Thread: Here we go. 1999 LQ4 6.0l/4l80e into 57 Chev

  1. #41
    Next dumb question. Where do I find the rev limiter?

    nvrmind, found it

  2. #42
    When swapping injectors, what sections need to be updated in the tune? I tried using the compare feature, but so many tables are different I do not trust what I am seeing to change.

  3. #43
    Tuning Addict 5FDP's Avatar
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    The main things to change are the flow rate, short pulse adder, offset vs voltage and the min injector pulse. Those tables are pretty much what come with aftermarket injectors and would be the same things you change if you swapped to larger stock injectors from another vehicle.
    2016 Silverado CCSB 5.3/6L80e, not as slow but still heavy.

    If you don't post your tune and logs when you have questions you aren't helping yourself.

  4. #44
    Perfect thanks.

  5. #45
    Okay installed the injectors, loaded up the tune.

    Is it normal to go lean when swapping injectors? Thought is was odd going from 24 to 34 lbs and my tune went real lean.