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Thread: 05 colbalt ss losses boost

  1. #1

    05 colbalt ss losses boost

    hi trying to tune an 05 colbalt it has smaller pully and bigger injectors
    car will hit 15# on the dyno then super charger by pass valve comes open at 4800 rpm and drops to 7 lbs

    thanks kyle
    97 k2500 ecsb 5.7l/4l80/4x4 0411 pcm,thorley tri-y's,true duals(no cats),msd ign.,zz4 cam, tuned with efi live

  2. #2
    Advanced Tuner laser_racer's Avatar
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    Jul 2009
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    league city tx
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    Got a log of it? There's few things that will cause it mostly under torque management by the supercharger settings. I know one way to cut it all the way but you need to make sure you don't have a problem first.

  3. #3
    Senior Tuner BackyardTurbo_FTW's Avatar
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    Jul 2009
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    Desired tq and desired tq s/s tables aren't set to max torque.