Road tune

Mitco39

Thanks for posting the MAF voltages, looks like even a NA car runs north of 4 Volts under WOT.

As far as timing goes, the best way to do this on a NA car would be on the rollers where you could increase the timing as a whole 1 degree at a time to find the MBT then back it off 1-2 degrees and leave it there. On a NA car I would expect it to be able to reach MBT before knocking, however thats what the headphones are for just to make sure.

The crappy part about this is you really need a dyno to see the exact point when adding more timing stops increasing your power output. Recording the MAF voltages wont work because now your just using the same amount of air but harnessing the "bang" to get a higher average cylinder pressure over your combustion cycle.

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