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Thread: 2013 ZF8HP tuning.

  1. 10-29-2020 #1
    2500HD8.1
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    2013 ZF8HP tuning.

    I have a 2013 Charger SXT AWD with the ZF8HP transmission and wanted to try and do some transmission tuning. I have read the sticky on Getting To Know Your ZF TCM and have a better idea of tuning shift points. What I am having trouble with is knowing which Acceleration Factor and Aggression table to use. I see where others have been able to log these in the scanner. I do not have these listed as being able to scan for my car. I was running version 4.8.7 Scanner and then tried BETA 4.9.180, re-scanned for available PIDs and still does not show those tables. I am able to log other parameters for the transmission. Am I missing something or is it possible that mine just doesn't have those PIDs?
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  2. 10-29-2020 #2
    spoolboy
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    Are you looking for channel Shift ID?
    If in doubt, multiply everything by 1.1.
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  3. 10-30-2020 #3
    2500HD8.1
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    Yes, if I understand correctly this should show me which table is being used to shift at that time.
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  4. 10-30-2020 #4
    spoolboy
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    They'll have to add it for you if it's not there.
    If in doubt, multiply everything by 1.1.
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  5. 10-30-2020 #5
    2500HD8.1
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    OK, thanks for the help. I'll submit a ticket.
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