Why do you Cummins guys want more gears

4x4ord wrote:
^^^ Thanks for posting the graph Shiner. I see the torque drops off after 2800 even faster than I had imagined and illustrated in my graph ... which makes its power output even more sensitive to rpm. I wish the manufacturers would publish things like torque curves and brake specific fuel consumption maps.

Yeah, doing the math and doing a rough overlay where the Cummins torque/hp would be over the L5P graph above, it is clear to see that the Cummins turbo is utilized for more low-end power and the L5P probably uses a larger turbo that comes on later for more top-end power. Nother wrong with either, just depends on where you want your power.