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Thread: ZF8 Max input shaft torque.

  1. #1
    Potential Tuner
    Join Date
    Jan 2019
    Posts
    4

    ZF8 Max input shaft torque.

    I have a 2017 1500 with a whipple, dynoed right at 501whp. I was just browsing over the transmission tuning and noticed there?s a spot for Max input shaft torque. I compared it to a stock file and it?s the same at 527ft/lb. Does that actually mean it?s being limited to 527ft/lbs or is it more complicated than that? I thought about upping it but wanted to do a little research first.

  2. #2
    Advanced Tuner
    Join Date
    Oct 2005
    Location
    baton rouge la
    Posts
    411
    You can raise that. Just be aware that on some vehicles if you go too high on that number it will go into limp mode and throw a "implausible input torque" code. If that happens just bump that number down a little. My 2008 charger was fine at 575 but went into limp mode around the 600 area. I've tuned others that would allow me to set that at 650 with no issues