Ok I am looking at the 0 to 60 times on the 6.7L and comparing them to this...
http://www.motortrend.com/roadtests/trucks/163_0409_2004_truck_comparisons/acceleration.html
The 2004 6.0L F-250 Harley Davidson got to 60 mph in 8.5 seconds. Acceleration has to be more of a function of what the PCM (or whatever it is called on the 6.7L) and how it ramps engine load than HP/Torque capability. This may be obvious to some but I found it interesting that the HP/Torque numbers go from 325/570 to 400/800 (or whatever the 6.7L is rated at?) and the 0 to 60 times are pretty much the same....
http://www.motortrend.com/roadtests/trucks/163_0409_2004_truck_comparisons/acceleration.html
The 2004 6.0L F-250 Harley Davidson got to 60 mph in 8.5 seconds. Acceleration has to be more of a function of what the PCM (or whatever it is called on the 6.7L) and how it ramps engine load than HP/Torque capability. This may be obvious to some but I found it interesting that the HP/Torque numbers go from 325/570 to 400/800 (or whatever the 6.7L is rated at?) and the 0 to 60 times are pretty much the same....