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  1. Replies
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    Re: datalogging for PefTb tuning in MPTune

    The stage 4 cal has modifications to the PEFTBL that assumes you have a mildly ported head. So, if you don't, it will run richer.

    Maybe start by comparing to a stock cal, and resetting the PEFTBL...
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    Re: datalogging for PefTb tuning in MPTune

    I have done this using my own drag race data; and for a customer using dyno data. I can tell you, the dyno data is the best way. My drag race data was so limited, that I was only able to really tune...
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    6,969

    Re: datalogging for PefTb tuning in MPTune

    Hmm, that shouldn't work. Or, I should say, usually doesn't work...
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    Re: datalogging for PefTb tuning in MPTune

    Unplug and replug the cable?
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    6,969

    Re: datalogging for PefTb tuning in MPTune

    You don't have to send the AFR data to the ECU to log it. I've done the adjustment from data that came from a dyno datalogger (including an RPM tap and a separate MAP sensor).

    By 'good' data, I...
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