2020 Cummins IKE pull
VIDEO What do you think? (other than graphic error at 18:35 that says GMC DENALI :) ) For me, the time is about what I expected as it is missing a 10 speed auto and has slightly less power than ...
Forum Discussion
4x4ord wrote:ShinerBock wrote:4x4ord wrote:
^^^ So, based on my observation I would say the wheel brakes were largely what was holding the truck back. The computer recognized the need for a downshift to produce more exhaust braking. After the downshift the back pressure and rpm increased to produce the maximum level of exhaust braking the engine was able to do .... the wheel brakes made up the difference.
Nice theory, but owning a Cummins and having been on that road I would have to disagree.
You've been on that road with 30,000 lbs in tow?
No, and neither have you. Although I have been on that road to know it is not 7% grade the whole way through and it varies between 3% and 7%. I have also driven/towed the 6.7L Cummins in other medium duty vehicles both when I worked at Cummins and at my current employer. None of them use the vehicles brakes and yet they apply the same kind of exhaust braking that my truck does at max going down grades when towing.
