redknight290
New Member
- Nov 5, 2007
- 26
- 0
- 0
My Shelby was delivered with an "Alternate Calibration." That's a feature that limits supercharger boost pressure and engine RPMs during initial driving. It's my belief that this was the result of a number of high performance and/or supercharged vehicles getting badly abused/damaged/totaled before delivery to the customer. As a result, my Shelby lacked performance the first few times I drove it.
Does/did anyone else require a wheel lug torque check at 500 miles?
All shelby's have that alternate calibration from the factory. The tech doing the P.D.I is supposed to reset the pcm calibration, which will stop the pcm from dumping boost as it does in the safe calibration.
The thing is alot of dealerships don't let the techs pdi the shelby's at all, and thus the only other way to get it to stop dumping boost is to drive it, usually around 30-50 miles total calibration will reset.