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Thread: 1997 Corvette LS1 GEN 3 Tune Suggestions

  1. #1

    1997 Corvette LS1 GEN 3 Tune Suggestions

    Hello. I have a base 1997 Corvette (6-speed manual), LS1 (GEN 3) with long tube headers (1/78), 3-inch x-pipe (no cats), Corsa cat-back, cold air intake (dual-cone), aluminum dual-code radiator. Early C5 PCM. Stock narrowband. Stock MAF. Stock otherwise.

    I started tuning the car and looking for advice on how I can better tune the VE, fuel trims, MAF, (or any other changes). I have attached my latest files if anyone has suggestions to offer (included my first read for comparison).

    09192021write.hpt
    19192021afterwrite.hpl
    stockfirstread05152021.hpt

    Thank you.

  2. #2
    Tuner in Training
    Join Date
    May 2006
    Posts
    22
    With headers and stock o2 sensors you may have issues with slow cycling of the o2 sensors. Suggest you get a wide band o2.
    See this guide: https://ls1tech.com/forums/pcm-diagn...eo-guides.html