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

ShinerBock wrote:

Huntindog wrote:
I think in hot weather, it will be a different test.
For the first time, I have seen, the Ford performed the way one would expect according to it's ratings..... BUT.... It was cold and wet.
So what I always felt was the reason for Fords previous lackluster performances was less/no factor::: Defueling to protect the motor.
With all of the cooling enhancements GM introduced this year, I would expect it to do much better against the competition in hot conditions.

There are some other factors that may be in play as well. I just don't have enough info at this point to make a good call on them.

Yep. I would wager that if the outside temps were in the 50s or 60s then the times would have identical and if the temps were in the 80s then the GM would have had it. The coolant temps were already in the 220s according to their comment and they would have not doubt been much higher in hotter weather since it has to keep the engine heat and hot compressed air coming from the turbo cool. There will eventually be a point that it will not be able to keep up and the intake air temps will increase which will also increase EGT's and engine temps causing it to cut power.

Since air cooled intercoolers on the Ram and GM trucks rely on outside air to keep them cool, they are not effected by coolant temps so they can sustain higher power levels for longer intervals. They are ,however, more effected by heat soaking in stop in go city driving where there is not enough air going over them to to keep them cool. I kind of hope that they will run the Ram in cold temps just like this test because hotter temps would effect the outcome even more, but I doubt it.