Yep, according to Corvette Forum, all that’s required is about 500 miles on the odometer before the Engine Control Module stops cutting power. That simple message comes from Rocko Parker of Chevrolet Performance, so we’d like to think it has some credibility.
It would make perfect sense that the ECM wouldn’t allow for full performance straight out of the box, as engine components like piston rings are still being worn to seal with the cylinder walls. In fact, one of our readers chimed in on our first post about the issue, suggesting that the ECM in the base Stingray is similarly conservative during the break-in period.
Of course, this pretty much invalidates any dynamometer numbers that have been publicized by independent testers; as alluring as those numbers are, it may well be that the true RWHP of a primed Corvette Z06 is even higher than initially thought. And we are simply dying to find out what they are.