Originally Posted by jmackinjersey
I think he's talking about when the car is idling (unloaded) The car will cut out around 4k rpm. But as you're driving it will go to 6K.
That would make sense that the ECU was programmed to prevent the engine over-rev in neutral. That's why you need a DRBIII to dyno the car.
The question is, why the hell would you want to sit in neutral and over-rev the engine?