Results 1 to 3 of 3

Thread: 19 6.4 whipple part throttle timing bounce or jitter

  1. #1

    19 6.4 whipple part throttle timing bounce or jitter

    full whipple kit on stock 6.4 with stock throttle body, long tubes and full exhaust.
    everything is good except around 40% throttle. here it doesn't get the on/off lots of post refer to but sawtooth or whiplash timing.
    0-30% good, mash it good. it's just this one area and it'll hold it as long as you hold the pedal steady. but only in 3rd and higher gears.
    any idea what's causing this? torque management? no codes.
    2 logs, oem file and tune file attached.
    thanks
    Attached Files Attached Files

  2. #2
    Advanced Tuner coanan's Avatar
    Join Date
    Mar 2009
    Location
    S. Florida
    Posts
    582
    2018 Trackhawk PCM/TCM tune by Dusterhoff.
    Flex Fuel, MMX faux 95mm TB, GripTec 2.85, 10% ATI lower, FIC1200, ARH 1 7/8 w/cats, 180 T-stat

    13 Chrysler 300S, RAM BGE 412 stroker, cam motion 232/246 619/619 118 +4, ATI 18% OD pulley
    Whipple Gen5 3.0, 2.50 upper pulley, Smooth Boost controller, FIC 1200 inj. Nick W 108mm TB, FORE dual return fuel system, E85, FTI 2800 stall(SRT83380), SHR WAR Viking trans and valve body, Getrag 3.73, 1 7/8 kooks w/hi-flow cats, 3" Magnaflow Cat-back 943rwhp

  3. #3
    ok that was good stuff. did the table to 1 like in one of the links then tried all the stuff in hemituna's 15 file and car was undriveable. he had demon tb on that and this doesn't but i don't think enough to make a difference. not sure how i go it one step forward but right now, the throttle is steady. it's only spark going nuts. any other links or suggestions?
    Attached Files Attached Files