New Ram/Cummins vs GM/Duramax on the IKE

FishOnOne wrote:


Not sure I agree with this... TFL did a DRW race and the Ford beat the Chevy and Ram unloaded when the trucks could reach there upper rpm range. Put a heavy load and they performed within ~2 seconds in which torque played the major role in which all had similar torque ratings.

Dynos:

Factory Rating/Dyno Measurement

Ram:
HP 385/338
TQ 900/828

Ford:
HP 440/387
TQ 925/806

Chevy:
HP 445/337
TQ 910/771

Link

The turbo tuning of each truck will make a big difference in dyno numbers. Some turbos like to be loaded down to get their best numbers and some don't. It mainly depends on how the VG vane actuation is tuned.

Also, there is a huge difference between short term power on dynos (and 0-60 runs) versus sustained power. These engines will defuel and lower its power output if the temps get too hot so the most important number (to me) is how much power can it sustain pulling a load for a long period of time before the temps get too hot to the point it has to cut fuel and/or inject more exhaust gas to keep NOx within limits both of which will reduce power output.