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Thread: C7 w/A&A supercharger has timing higher then requested - can't get it low enough

  1. #1
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    C7 w/A&A supercharger has timing higher then requested - can't get it low enough

    C7 with headers and an A&A kit. We are trying to pull timing down to around 11-14 of advance but the car keeps getting around 15-18 and then runs into kr. I'm not sure if it's a mystery table I need to find and reduce the timing or if its from the torque tables. The car is making more eng tq then max eng tq. Every time I raise the vtt both numbers seem to jump up together but the gap does seem to be closing a bit. Problem is the eng tq is up to 900 in the scanner. The car is making good power but no where near that neighborhood. Just put down 540/550 on the dyno. Or could it be the cam advance timing advance. It's a timing table that advances the timing when the cam starts to advance. It's a stock cam running advance at wot so I could see that happening too? I never messed with that table before though.

  2. #2
    Senior Tuner SultanHassanMasTuning's Avatar
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    best to post the tune
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  3. #3
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    Either post tune or log with all timing adders/reductors included. I bet you'd spot if you did did that.

  4. #4
    Senior Tuner Ben Charles's Avatar
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    Probably cam timing since it adds up top

  5. #5
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    It was the cam timing guys. I made another pull last night and zeroed out the VCP Spark under wot.