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Thread: 8 speed auto full support???

  1. #1
    Senior Tuner Ben Charles's Avatar
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    8 speed auto full support???

    Curious when we will get FULL support for the 8speed auto???

    Would love to make changes like I did on the 6speed, currently tq management is just on/off, etc

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  2. #2
    Tuner in Training NicD's Avatar
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    I second this, at least need desired shift times and inertia tables added along with actual specified units in the torque limit tables.

    2016 C7 Z06 | 2017 ZL1 | 2009 C6 Z06 | 1994 GT - The LS-stang | 2010 Tahoe SSV

  3. #3
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    Definitely need more settings...the adapt resets every flash and then shifts hang. I only added 5% to base pressure.

  4. #4
    Senior Tuner Ben Charles's Avatar
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    Yea every damn trans write first shift is terrible....

    Vendor on the corvette forum is talking about 8speed tuning with auto cal.... Don't see how he can be doing much other than disabling stuff lol

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  5. #5
    Tuner in Training NicD's Avatar
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    Quote Originally Posted by Ben Charles View Post
    Yea every damn trans write first shift is terrible....

    Vendor on the corvette forum is talking about 8speed tuning with auto cal.... Don't see how he can be doing much other than disabling stuff lol
    EFILive has had the tables I mentioned for a while now.

    2016 C7 Z06 | 2017 ZL1 | 2009 C6 Z06 | 1994 GT - The LS-stang | 2010 Tahoe SSV

  6. #6
    HPT Employee Engineer@HPT's Avatar
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    Sorry about that guys. We will have an update done to our 8 speed definitions within the next month.

  7. #7
    Senior Tuner Ben Charles's Avatar
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    Sounds good

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  8. #8
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    Ah, thank you for posting this. I got my new Sierra with the 6.2l and 8spd auto and how if shifts is killing me compared to how I had my 2014 truck setup.

  9. #9
    and here I was wondering where the pattern B part throttle table was...

  10. #10
    HPT Employee Engineer@HPT's Avatar
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    Today's software has a comprehensive update for A8 transmissions thanks to one of our diligent engineers.

  11. #11
    Senior Tuner Ben Charles's Avatar
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    Very nice!!!
    I'll check it out later

    Thanks

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  12. #12
    Senior Tuner Ben Charles's Avatar
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    Good update... I know you guys are working hard, still like to see more

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  13. #13
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    Quote Originally Posted by Engineer@HPT View Post
    Today's software has a comprehensive update for A8 transmissions thanks to one of our diligent engineers.


    I downloaded the new software today, I do see the extra tables but they only go up to 6 gears. Should we not see up to 8 gears if that is what our vehicle has?

  14. #14
    Quote Originally Posted by Sneakyws6 View Post
    I downloaded the new software today, I do see the extra tables but they only go up to 6 gears. Should we not see up to 8 gears if that is what our vehicle has?
    What tables specifically? I'm looking into this but I can't find any that only go up to 6. I'll be glad to look further into it though.
    Last edited by MarkS@HPTuners; 04-11-2016 at 10:33 AM.

  15. #15
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    On the transmission side, under the shift times tables. It only shows the tables like this is a 6L80E. I was in the upshift tables and downshift tables, at least that is where I saw it. I made sure to log into my portal and download the newest update and install it. I think it went from 3.24.077 revision to 3.24.080 revision.

  16. #16
    Quote Originally Posted by Sneakyws6 View Post
    On the transmission side, under the shift times tables. It only shows the tables like this is a 6L80E. I was in the upshift tables and downshift tables, at least that is where I saw it. I made sure to log into my portal and download the newest update and install it. I think it went from 3.24.077 revision to 3.24.080 revision.
    Weird. On my end I'm seeing 1-8 gears for those shift speed tables. What vehicle are you tuning?

  17. #17
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    2016 GMC Sierra, 6.2l with the 8L80E

    Just verified again, just updated to 3.0.78 just a bit ago and still same issue. Under transmission>part throttle shift speed - I am seeing nothing but upshift, downshift, upshift 5th, downshift 5th, upshift 6th, downshift 6th, D1 and D2.

  18. #18
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    Nevermind, I am a idiot. I had the wrong file open.