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

RoyJ wrote:

rhagfo wrote:

4x4ord wrote:
I'd like to see a video of the 7.3 pulling that trailer up the Ike. I'd be willing to bet it would out do at least 1 of these diesels.

It will not have enough torque,and not pulling 30,000#. Listed at 430 hp and 475 lb ft torque, it would need some serious deep gears to even make the climb.

With the 4.7:1 1st gear on 10R140, and 4.30s, torque won't be a problem even at 37,000 GCW (way above the 7.3's rating).

Taking TFLT's 407 lb-ft rwtq dyno result, and 32" tires, the max tractive effort is: 407*4.7*4.3*12/16 = 6169 lbs

6169 / 37000 = 16.7% gradability in 1st gear, which is far steeper than the IKE, even when you factor in rolling and aero resistance.

What it won't have is horsepower to pull the load at the speeds the diesels can, at elevation.

It isn’t short on HP it is way short on Torque.