The Big Three's New Diesels put on a Dyno

ShinerBock wrote:

Huntindog wrote:
So what do you think caused it?
The DA combo has been dynoed many times over the years and has consistently put more power to the ground than higher rated trucks.

And in the recent Ike hill climb, it also put more power to the ground.

Yet this dyno test is inconsistent (by a HUGE margin) with those other tests.

You can't compare one dyno to another completely different dyno. There are many different factors effecting their numbers like humidity and altitude just to name a few. Then there is the fact that some dyno types tend to post higher number than others. The main thing about this dyno was the the fact that all three were tested on the same day and the same dyno. This is more of a real comparison than comparing a dyno done one two different dyno's at two different altitudes.

As I said before, I think the main reason why the GM posted the better time up the Ike was mainly due to the 3.73 and transmission gears allowing it to be in in third gear at a higher rpm where it is making more power compared to the others that were in fourth most of the way at lower rpm where they are not making peak power. If they manually would have dropped the Ram or Ford down a gear, then it probably would have had an effect on the times. However, that is not how they run their tests so it is what it is.

Perhaps this is why GM specs in a max tow rating of 23k lbs and it allows the truck to run in it sweet spot so to speak.