So who wants their ECU's "Chromed"?

[anyonebutme]

I thought EVO Scan showed what the ECU is calling for, because the number for timing I get from EvoScan matches almost 100% of the time to the timing map for a given load and RPM.

The equation to calculate timing is fairly simple. You take RPM*.0005 and subtract that from the timing map if you are running the old style cam/crank sensor.

test it with a timing light under load and I bet you'll see something scary.