The Big Three's New Diesels put on a Dyno

4x4ord wrote:
Here's a theory. All three trucks ran up the hill in about the same time, therefore they were all three putting about the same power to the ground during the run. The Duramax likely ran up in a lower gear than the other two trucks and likely revved a little higher. If the trucks were making the power that the manufacturers claim the Ram would have been significantly behind the other two. I believe the more refined engines, the new Duramax and Powerstroke were not making the kind of power they should have because the computers were slightly limiting the max fuel delivery on account of the high altitude....lower oxygen. Maybe in order to keep emission levels in check? Obviously if more fuel would have been injected in any of those engines they would have performed better. I would really have liked to see the outgoing Duramax involved in the challenge.

A waste gated turbo shoots down your theory of high altitude, as they most likely cram the same amount of air in as at sea level.