possible misfire on turbo car above 12psi, any ideas
09-23-2009, 09:40 PM
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possible misfire on turbo car above 12psi, any ideas ok here is the issue, i just got everything finished up with the car and been tryin to work some of the kinks out, it seems that whenever it starts build more than 12psi or getting above 3500rpms it feels like there is a small misfire or hesitation to it, nothing to bad it still pulls good but you can tell its not at full potential. Im running the TR6 plugs gapped at .028 so i dont think its blowing the spark out. Im thinking it could be in the tune, possibly in the timing chart. If anyone has any ideas please speak freely, also this is on pump gas do you think i need race full or meth?
09-24-2009, 12:53 AM
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Id try .022 - .025. I had mine down to .018 and was still blowing the spark out. I eventually picked up a set of the 6.0L LS2 round truck coils with the heat sinks. The miss went away and I can run a .025 gap no problem. I fought that damn miss all summer, so I am glad it is gone.
Just looked at your tune. Your spark table is a lil rough. You might try smoothing it out a little where the miss occurs. Can you post a log?
Just looked at your tune. Your spark table is a lil rough. You might try smoothing it out a little where the miss occurs. Can you post a log?
