2021 Cummins 1075 lbft peak torque at 1356 rpm
Apparently the 2021 Cummins makes its peak torque of 1075 lbft at 1356 rpm. Are you still impressed?
Forum Discussion
^^^It is. We know two points on the Powerstroke's torque curve. 1050 lbft @ 1600 rpm and 960 lbft @ 2600 rpm. So it only has a torque rise of 90 lbft over 1000 rpm.
If the Powerstroke doesn't make enough torque to pull a hill in a particular gear the engine will slow down without putting a whole lot more torque to the rear wheels until the rpm drops enough to allow for a shift in the transmission. The Cummins on the other hand has a little more torque rise so as the engine slows more and more torque is put to the rear wheels to meet the demands of the hill. The Cummins is really quite happy with a 6 speed.
If the Powerstroke doesn't make enough torque to pull a hill in a particular gear the engine will slow down without putting a whole lot more torque to the rear wheels until the rpm drops enough to allow for a shift in the transmission. The Cummins on the other hand has a little more torque rise so as the engine slows more and more torque is put to the rear wheels to meet the demands of the hill. The Cummins is really quite happy with a 6 speed.
