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Thread: 6l80e tuning

  1. #1
    Tuner in Training
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    Jan 2020
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    6l80e tuning

    So, i just got hptuners, and want to mess with my stock 2015 5.3 sierra. What should i adjust and how much should i? Where are some good files and good literature on tuning the gen v 6l80? I?ve figured out how to delete dod and the speed limiter, its just so over whelming. Thanks

  2. #2
    Tuner in Training
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    Jan 2020
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    Yes it does seem overwhelming at first. I just got HPT around Christmas. You can pick it up fast, just work on one thing at a time. I also worked on the trans in my 2015 Silverado first and it will make a ton of difference in the drivability. A few videos I found extremely helpful:

    Some torque management help: https://www.youtube.com/watch?v=M8X5z0qxnM4
    Download the BlueCat trans calculator, this will make things very easy as a start : https://www.youtube.com/watch?v=X8vi7A7RGEs
    Trans tuning: https://www.youtube.com/watch?v=1L006vkWbkQ

    This will get you started and make a big difference. I am still playing with shift pressures and timing honing in on what I like. Start with these changes using the BC trans calculator and the other changes in the videos. I ended up pulling back just a bit on the shift timing, as I felt like on a stock truck the shifts were stretched out a bit too far. I also did not go as far on the oncoming pressure presets or line pressure as Cesar mentions. I am in the 300/450/550 range right now on the oncoming presets and shifts are pretty firm but not bone jarring, and around 850KPA line pressure. Once you get started it's fun to play and see what the changes do.
    Also look up my thread on Driver Demand tables, that makes a world of difference on these trucks!
    New to tuning, but not to cars. Just here to learn!

  3. #3
    Tuning Addict 5FDP's Avatar
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    For what it's worth I pretty much never touch anything torque mngt related for the transmission and never have a one single problem with performance. I do not suggest changing much of anything TM related for now.

    Most of the stuff I do is stock or lightly modded.
    2016 Silverado CCSB 5.3/6L80e, not as slow but still heavy.

  4. #4
    Tuner in Training
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    Thanks fellas! Im going to tweak the file on lunch

  5. #5
    Tuner in Training
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    Wheres the oncoming oressure oresets?

  6. #6
    Tuning Addict 5FDP's Avatar
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    May 2012
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    2016 Silverado CCSB 5.3/6L80e, not as slow but still heavy.

  7. #7
    Tuner in Training
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    Jan 2020
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    Forgive me, I havent used forum’s in years just fb groups lol