Originally Posted by Rameses
The Cummins 5.9 is more than happy to run down the road at 2800-3000 rpm.
The 8.3 is a completely different animal, however. Peak power is around 1700 rpm and redline is 2400-2500.
If its redline is 2400, then I'd have no issue giving it some throttle and getting on down the road with it.
It may very well be governed not by RPM redline, but by computer.