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Thread: spark retard

  1. #1
    Tuner
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    spark retard

    a lot of KR between 4.8 and 6.4 rpm

    i have change ( PT, WOT and MinSpark ) -/+ and the KR still High

    2006 charger rt : k&n CAI, 180 thrmostat, SRT8 6.1 camshaft, ARH Long 7/8 with off roads pipe and catch can

  2. #2
    Tuner in Training
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    what is a lot? do you have a log?
    2006 Evo 9 2.2L 8374EFR E85 720awhp - ViPEC
    2014 SRT GC - 6.4L Magnuson TVS2300 6psi 550awhp - HPTuners

  3. #3
    Tuner
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    Quote Originally Posted by R/TErnie View Post
    what is a lot? do you have a log?
    mbt.hplmbt and wot.hpl

  4. #4
    Tuner in Training
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    Can't open the file now but what is your:
    afr at that rpm range?
    Iat?
    Ect?
    Maybe it is burst knock retard or bad knock sensors.
    Check your headers maybe it is hitting/touching somewhere causing the knock sensors to read false reading.
    Last edited by DXB_Tuner; 06-18-2015 at 10:59 PM.

  5. #5
    Tuner in Training
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    Seems like a bunch of timing. Actual spark output probably wont need to be as high as it looks like it's being commanded. Add Spark and inverse of KR and that would be commanded spark well over the 20deg range. Pull 5-6 degrees from WOT and retry