Quote Originally Posted by Chip42 View Post
cheating a dyno test is as simple as reading non-drive wheelspeed as an indicator for advance or a fuel table. if the non drive wheels are sitting still on the dyno then the ECU never leaves low power mode. hard to catch without having a tuner there.
I'm pretty sure the car I ran aginst at NASA Nationals 2 years ago had that set up in his ECU. Car was smoking fast on track but laid down a pretty unimpressive dyno number.