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Thread: PCM template or base JKD7 info ,please help !

  1. #1
    Potential Tuner
    Join Date
    Jul 2012
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    2

    PCM template or base JKD7 info ,please help !

    I am currently tuning a 2011 gt500 with sct pro racer and the only strategy for my base tune is JKD7 , can anyone tell me what this processor code is for bc I cant find these letters anywhere on my PCM ,and I feel like it is for a earlier year car and is causing me lil problems that just wont go away , mainly a surge when pushing the gas about half way , rite at tip in . also keep seeing a lean spikes at every tp but wot . Can anyone shed some light on my situation ? 2011 gt500 2.9 whipple 3.25 upper,cfm twin 67mm tb, jlt 123mm intake , I D 72 lb injectors, no cats .

  2. #2
    HPT Employee Eric@HPTuners's Avatar
    Join Date
    Oct 2007
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    Crawfordville, FL
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    2,409
    JKD7 is a 2011 PCM code. Definitely sounds like a tuning issue.

  3. #3
    Advanced Tuner
    Join Date
    Dec 2005
    Posts
    222
    The part throttle surge is most likely a tuning issue. With a bigger TB, it may be due to the FFTA/ETA correlation and you may be able to soften the surging from calibrating those tables more closely. With the bigger blower, it can also be in the TQ/Inv TQ correlations. You really need to be within about 10% on the TQ/Inv Tq so try tightening up your accuracy on those tables. Also, don't go wild on the driver demand...that'll add to the problem.
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