mikeyjobu
Well-Known Member
Correct. And the car feels much quicker irrespective of the revolutions -per- mile setting. Isn't the tire stuff in the ABS, rather than he ECU now? I think Whipple and Ford were - maybe still are - the only two that can make the adjustment correctly?By changing your "tire size" using the ProCal tool you are not physically changing the size of your tires. Your speedometer now uses the new size parameter to calculate speed.
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