The Big Three's New Diesels put on a Dyno
Here is the TFL video The results are... Thanks! Jeremiah
Forum Discussion
The maximum torque limit on today's emissions controlled diesels is dynamic depending on many variables. The two different tests by TFL with the Ford proves this.
These are general limitations and each manufacture may use variations and set points to suit they're needs.
1)Maximum engine torque is limited by DPF soot load,atmospheric pressure, and intake pressure / temperature.
2)Transmission torque limit
3)Torque reduction for heating protection
4)Torque reduction for smoke limitation
5)Fail safe mode ECU failure
So these tests are really only valid under the very specific conditions they were performed. Change the weather conditions, temps ect and the results will probably change as well. The rated peak torque figures will only occur under proper conditions and obviously Ford is reducing it's max torque number under the TFL test conditions that day. So what is learned from this test? Ford guys don't challenge a LP5 or a RAM 6.7 during the heat of the day,wait till night time.
These are general limitations and each manufacture may use variations and set points to suit they're needs.
1)Maximum engine torque is limited by DPF soot load,atmospheric pressure, and intake pressure / temperature.
2)Transmission torque limit
3)Torque reduction for heating protection
4)Torque reduction for smoke limitation
5)Fail safe mode ECU failure
So these tests are really only valid under the very specific conditions they were performed. Change the weather conditions, temps ect and the results will probably change as well. The rated peak torque figures will only occur under proper conditions and obviously Ford is reducing it's max torque number under the TFL test conditions that day. So what is learned from this test? Ford guys don't challenge a LP5 or a RAM 6.7 during the heat of the day,wait till night time.
