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Thread: D1XSC 2017 Charger 5.7RT: Timing issues

  1. #1
    Senior Tuner
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    D1XSC 2017 Charger 5.7RT: Timing issues

    Lost in reading threads and getting off track. Car is a 2017 Dodge Charger RT, 8 speed with ID1050x injectors, 2 Bar MAP, long tubes and 3" exhaust. Cannot find what is causing timing to be consistently pulled in the lower RPM. It'll pull 14* every time and slowly come back. Posting log and tune to see if any of you Procharged guys can have a peek. Even a "nudge in the right direction" would be nice

    2017_Dodge_Charger_Procharged_D1X_ID1050x_2Bar_MAP_10.hpt2017_Dodge_Charger_D1x_Northern_Day2_04_Idle_NN_On_04.hpl
    2000 Trans Am WS6

  2. #2
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    Side note: The only table I see that is close to what is being pulled is the Hot Spark table. Anyone agree I should lower its' ability to kill spark in this case?
    2000 Trans Am WS6

  3. #3
    Advanced Tuner
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    Quote Originally Posted by MMGT1 View Post
    Side note: The only table I see that is close to what is being pulled is the Hot Spark table. Anyone agree I should lower its' ability to kill spark in this case?
    Isn't your log showing 14* of knock retard? Wouldnt that be the first thing to look at? Is the knock sensor registering a lot of voltage?

  4. #4
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    I just added V to the scanner. I'll check that in the morning when I get back to the car. The odd one is, if I Brake Torque the car it holds timing just fine. I loaded the tires to just about breaking loose and timing was holding steady at 15-16*. Didn't even think to look at the voltage of the sensors themselves quite honestly.
    2000 Trans Am WS6

  5. #5
    Tuner in Training guru1oftal's Avatar
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    Try running the attached graph layout to monitor ST knock at WOT and PT.
    I have scaled them to match your spark tables so you can copy and paste (subtract) into your tune directly.
    Once you get it to zero knock see what your advance is running (I scaled that as well).

    ST knock.Graphs.xml

  6. #6
    Tuner in Training
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    Mine is a 2011 Charger R/T with P1SC-1, Siemens Deka 80lb, Fore double pump, 3 bar map, long tubes, headers, and an 85mm TB. I am running with NN on, started with injector scaling, then airflow tables, and finally spark tables.

    Looks to me like the injector scaling needs some work. Based on your log here is what I came up with that you can try:

    FM:
    0.000
    0.006
    0.010
    0.014
    0.018
    0.022
    0.028
    0.034
    0.038
    0.044
    0.054
    0.064
    0.072
    0.098
    0.443

    InjPW:
    0.00000
    0.31350
    0.48121
    0.71041
    1.09054
    1.43045
    1.81841
    2.17315
    2.50394
    2.97709
    3.52710
    4.36362
    5.57712
    7.96325
    30.90400