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Thread: Please Look over my tune

  1. #1
    Tuner in Training
    Join Date
    Jul 2006
    Posts
    32

    Please Look over my tune

    Just wanted to see what you guys think of it. Its all been done on the street. Used a friends wideband o2 to calibrate the AFR

    2000 LS1 4l60e Mods:

    -Long tube headers
    -LS6 Intake
    -Port and Polished stock TB
    -CAI
    -3" single exhaust with flow master Y
    -3:42 gears
    -Vig 3500 Stall
    -Trans-go Shift kit

    HPtuner scan.hplLs6 intake Tune - S3 TB-long tube-AFR 6-5-11.hpt

    Thanks

    Joey

  2. #2
    Potential Tuner
    Join Date
    Nov 2012
    Posts
    6
    Any reason you took tons of timing out of your low octane spark table? and "recalibrated" the maf?

  3. #3
    Tuner in Training
    Join Date
    Jun 2013
    Posts
    21
    I can tell from your narrowbands you're running 14-15 AFR at WOT, way too lean (they're switching at WOT). Fuel trims are jumping around more than I like to see too. Either your maf is dirty/stuffed or fuel pressure is sagging under load, you need to check fuel pressure under load before going any further. Then dial in the maf preferably with a wideband. Pull out some timing and put the knock sensor sensitivities back to stock untill you get the fuel/air sorted, you're running close to stoich at WOT with desensitised knock sensors at the moment which is dangerous.

  4. #4
    Tuner in Training
    Join Date
    Jul 2006
    Posts
    32
    Thanks guys! I appreciate the input. I will have a dyno available this weekend. Will try and sort stuff out. Thanks again