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Thread: Is this pushing through the converter?

  1. #1

    Is this pushing through the converter?

    Hey everyone.

    I have a 2000 4.8L with a 78/75 turbo and a 4L80e transmission. The transmission has an HD2 shift kit and a recently installed (Used) Yank 3600 stall converter.

    I noticed something interesting since the converter swap. There have been a few times where the vehicle starts to pull, RPM shoots up and mph barely increases.

    I got a datalog of it tonight. The pull starts at 7:06:19 and the actual jump is at 7:06:26. MAP also decreases in this time which also makes me think there is less load on the engine.

    Thoughts?
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  2. #2
    Quote Originally Posted by 5.3LS10 View Post
    Hey everyone.

    I have a 2000 4.8L with a 78/75 turbo and a 4L80e transmission. The transmission has an HD2 shift kit and a recently installed (Used) Yank 3600 stall converter.

    I noticed something interesting since the converter swap. There have been a few times where the vehicle starts to pull, RPM shoots up and mph barely increases.

    I got a datalog of it tonight. The pull starts at 7:06:19 and the actual jump is at 7:06:26. MAP also decreases in this time which also makes me think there is less load on the engine.

    Thoughts?
    nvm I am an idiot.......

    It down shifted from 3-2. Guess its time to drill out the holes in the plate for the larger converter. I can barely feel the shifts anymore.