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Thread: Anyone tune a G8 yet

  1. #21
    Advanced Tuner Pro Street's Avatar
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    Quote Originally Posted by BoostedGTA
    Write calibration.
    Thanks
    2018 GMC Denali A8 6.2L
    2016 CTS-V
    2016 C7 Z06 A8
    2016 C7 Z06/Z07 A8 vert
    2015 Chevy SS 6.2 LS3 A6
    1996 Impala SS LT1 CAI
    1995 Chevy 1500 5.3 CAI Z06 cam
    1957 Chevy vert

  2. #22
    Tuner in Training
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    No problem!

    Now if someone who has removed torque management on a G8 GT could let me know their thoughts I would appreciate it.

    Tuned a G8 today but removal of TM was not as "dramatic" as I had hoped for. In my GTO, it was night and day difference and the 1-2 shift made the car fish-tail violently. On this G8, it still does not even chirp a tire on the shift. Probably need to play with the shift time and/or line pressure. Or is there some other parameter somewhere besides the torque management tables both under engine and transmission.

  3. #23
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    Write calibration should suffice - ProStreet, can you post the tune?

  4. #24
    Advanced Tuner Pro Street's Avatar
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    I have not download the stock tune off my 09 yet! Maybe tonight!!!
    2018 GMC Denali A8 6.2L
    2016 CTS-V
    2016 C7 Z06 A8
    2016 C7 Z06/Z07 A8 vert
    2015 Chevy SS 6.2 LS3 A6
    1996 Impala SS LT1 CAI
    1995 Chevy 1500 5.3 CAI Z06 cam
    1957 Chevy vert

  5. #25
    Tuner in Training
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    Quote Originally Posted by BoostedGTA
    No problem!

    Now if someone who has removed torque management on a G8 GT could let me know their thoughts I would appreciate it.

    Tuned a G8 today but removal of TM was not as "dramatic" as I had hoped for. In my GTO, it was night and day difference and the 1-2 shift made the car fish-tail violently. On this G8, it still does not even chirp a tire on the shift. Probably need to play with the shift time and/or line pressure. Or is there some other parameter somewhere besides the torque management tables both under engine and transmission.
    My torque management is disabled and it chirps 1-2 every time unless I have been sitting there getting heat soak for a long time. I found that playing with the burst knock retard, delay and atack helped out quite a bit from a dig. Still can't peel out like I would like it to, but to be honest any more wheel spin than I curenly have will just be lost ET.

  6. #26
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    Quote Originally Posted by G8Paul
    My torque management is disabled and it chirps 1-2 every time unless I have been sitting there getting heat soak for a long time. I found that playing with the burst knock retard, delay and atack helped out quite a bit from a dig. Still can't peel out like I would like it to, but to be honest any more wheel spin than I curenly have will just be lost ET.
    Cool, I just PM'd you. Gonna do some more tweaking with the G8 tomorrow.

  7. #27
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    Quote Originally Posted by BoostedGTA
    Cool, I just PM'd you. Gonna do some more tweaking with the G8 tomorrow.
    Let me know how it goes. If I'm missing something in the tune, let me know.

  8. #28
    Does 09 G8 GXP support exist?
    Justin Starkey
    Ford and GM custom tuning
    Mobile Dynojet 224xLC
    www.VMPTuning.com
    2006 F250 CC 6.0L 14.3@92
    2006 Mustang 4.0L Vortech 15psi 395rwhp wife's car
    2000 Mustang 3.8L TT [email protected] 450rwhp

  9. #29
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    Yes it does, you need the 2.23 beta in order to read the computers. I just got a 2009 GXP and tuned mine somewhat today.

  10. #30
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    Sneaky, I just got a 2009 GXP too this weekend. Other than turning off CAGS and a few little changes, I've been so impressed with the torque and the low AFRs for a stock car (yes Ive not taken long scans yet so I dont know how off the LTFTs are but Im sure with the E10 here in S. FL they're off somewhat) that I've been apprehensive to make any changes until I get a wideband on this puppy (always good advice) ...

    ... still ...

    ... what have you changed? (if anything?)