Inside the 1,000 lb-ft 6.7L Cummins
As I said before, most of the changes were made to keep it clean(emissions wise) and cool at stock power levels while mated to emissions equipment. Although, there is no doubt Cummins is sandbagging ...
Forum Discussion
4x4ord wrote:
What exactly is this graph showing? It looks as though the torque/power is higher at the rear wheels in the higher gears. Some of that would be on account of the power lost to heat being a little less when the gear ratio is lower but I suppose the assumption is that some of it is due to torque limiting? It looks as though that is an aftermarket tune?
It is showing different aftermarket tuning levels in the same gear(4th). I have what is called a CSP4 rotary switch installed on the panel right above my park break release. It has four different power levels that I can select as I am driving.
The lowest line showing 336 rwhp is stock on that graph is stock. The line above that is level one on my CSP4 switch at 390 rwhp. The next line is level 2 on my switch at 450 rwhp. The next line is level 3 on my switch at 469 rwhp, and the highest line is level 4 on my switch at 513 rwhp. I generally drive on level 4 when not towing now that I have a built trans that can easily handle it, level 2 if I am towing something below 10k, and level 1 if I am towing something heavy.
