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Thread: 15 Dodge 5.7 - cant get wot 100%, varies from 50-70%

  1. #1

    15 Dodge 5.7 - cant get wot 100%, varies from 50-70%

    Just finished tuning a 2015 Charger 5.7L / A8 speed.

    Compcams 270 camshaft
    JBA headers shorty
    Edelbrock intake manifold
    Bigger throttle body (Customer had it on the car when it came in not sure brand)
    Circle D 3200 8-speed torque converter

    Idles perfect, drives perfect, no issues. Stock tcm program in it still.

    Ive tried every combination of torque management possible, changed the electronic throttle tables every way i can think of.

    When you floor it, the pedal voltage goes straight to 3.7-3.8 volts and the throttle body slowly opens and the car is super lazy from a stop feels slower than stock, then the higher rpm full throttle throttle varies from about 50-70%

    Ive tried max torque in driver demand higher / lower , nothing seems to work

    attached: log and tune
    ~01 Duramax 4x4 2500hd- 490rwhp - Kinda Fast
    ~00 Silver SS - 55k miles, 5xx rwhp, Fast
    ~00 Silver WS6 - 32k miles, 6xx rwhp, Faster
    ~89 NotchBack - LSx - S400, xxx rwhp, Fast'ish
    ~90 Mustang LX - 403" LSx S-91, 1,xxx rwhp, Fastest

  2. #2
    Advanced Tuner
    Join Date
    Mar 2018
    Location
    Illinois
    Posts
    873
    Could be your air tables are set high causing lazy throttle response.

    https://forum.hptuners.com/showthrea...l=1#post466902

    BTW don't think the throttle % opening ever hits 100%, it's explained in another post I can't find right now.