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Thread: Engine bogging down after shifting / torque loss

  1. 02-12-2020 #1
    Bamba1260
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    Engine bogging down after shifting / torque loss

    Hey guys, so I am trying to get my transmission dialed in after installing a SLP 1900 blower on my 2014 silverado with the L86. I am using the trans tune I got from Diablew as my starting point because the trans tune my tuner sent me was ended up being further away from where I want to be.

    The only issue I am really having now is after the trans shifts, especially to 2nd and to 3rd, I have to significantly increase my throttle to achieve the same power as I was getting in the gear previously. I don't think it is slipping, rather, the throttle demand is lower when it gets to the next gear/RPMS drop.
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  2. 02-12-2020 #2
    5FDP
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    Post the logs and tune you are running right now.
    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.
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  3. 02-13-2020 #3
    Bamba1260
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    Quote Originally Posted by 5FDP View Post
    Post the logs and tune you are running right now.
    Short log.hpl

    003 - O2 DTCs off, DD basically stock, TRRL maxxed out.hpt

    Trans Only.hpt

    The transmission only tune is the one I am running for the trans, the full tune I'm just using the engine portion.
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