F350 Super Duty vs 3500 Denali vs The Ike Pulling 30k lbs

Cummins12V98 wrote:

4x4ord wrote:

Cummins12V98 wrote:
Will be nice to see how the measly 400/1000 with 4.10's RAM does with it's ancient outdated 6 speed AISIN.

Very easy to have ZERO brake applications if one chooses running cruise control.

The new Ram has already run up against the Duramax 10 speed towing 16000 lbs. The Ram and GM had identical times of 8:24.


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Not towing 30k.

The interesting thing about the Cummins vs Duramax is that the Duramax makes 445 Hp @ 2800 rpm vs the 400 hp of the Cummins. But as the Duramax pulls down it dramatically looses power. In fact if it were allowed to pull down all the way to 1600 rpm where it makes peak torque it would loose 167 hp. The Cummins on the other hand looses very little hp as the engine slows down. In fact the Cummins only looses 57 hp slowing from 2800 rpm down to 1800 rpm where it makes its peak torque. For this reason the Cummins doesn't need a 10 speed to compete with the Duramax. The Cummins will be putting out more power than the Duramax at rpms below 2250. Above 2250 the higher power of the Duramax starts to come into play.
The Ram's ability to produce power at a lower rpm might allow it to get a little better fuel economy under certain conditions.