28,500 lbs Ford vs Ram 1 ton DRW
VIDEO $80,115 MSRP Ram 3500 385hp/930tq, 4.10 rear, 5690# payload as configured, 11 brake applications on the way down. 2.7 mpg and 11 min 41 sec on the uphill portion. $83,015 MSRP Ford F350...
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The trucks averaged 41 mph up the hill.
The top of the hill gets steeper and the trucks would have been going below 41 mph which puts them above 41 mph on the majority of the hill.
It is quite likely that 45 mph is speed the trucks pulled the lower section:
45 mph puts the Ram in 3rd gear at 2600 rpm.
45 mph is not a comfortable speed for the Powerstroke / TorqShift with 4.1 rear end to be maxed out at. 3rd gear puts the Powerstroke at 3000 rpm. (Not a good place to be.... inefficient) Alternately the Ford could be in 4th at 2266 rpm. It is very reasonable to think that at 2266 rpm the Powerstroke puts down the same power as the Cummins does at 2600 rpm.
It's interesting to see how a single pull can be tailored to favor one truck over another. Had the trailer been a little heavier both trucks would have been pulling in third and the Ford would be at a higher rpm where it would make use of its higher power.
Had the trailer been lighter the both trucks would have been in 4th gear where again the Ford would have the advantage.
Ford with 4.10 final in 3rd gear gives an overall gear ratio of 6.23.
With 3.55 gears the TorqShift yields an overall gear ratio of 5.40 in 3rd gear
The Aisin with 4.10 gears yield an overall gear ratio of 5.49 in third gear.
At the top of the hill if the trucks slowed
The top of the hill gets steeper and the trucks would have been going below 41 mph which puts them above 41 mph on the majority of the hill.
It is quite likely that 45 mph is speed the trucks pulled the lower section:
45 mph puts the Ram in 3rd gear at 2600 rpm.
45 mph is not a comfortable speed for the Powerstroke / TorqShift with 4.1 rear end to be maxed out at. 3rd gear puts the Powerstroke at 3000 rpm. (Not a good place to be.... inefficient) Alternately the Ford could be in 4th at 2266 rpm. It is very reasonable to think that at 2266 rpm the Powerstroke puts down the same power as the Cummins does at 2600 rpm.
It's interesting to see how a single pull can be tailored to favor one truck over another. Had the trailer been a little heavier both trucks would have been pulling in third and the Ford would be at a higher rpm where it would make use of its higher power.
Had the trailer been lighter the both trucks would have been in 4th gear where again the Ford would have the advantage.
Ford with 4.10 final in 3rd gear gives an overall gear ratio of 6.23.
With 3.55 gears the TorqShift yields an overall gear ratio of 5.40 in 3rd gear
The Aisin with 4.10 gears yield an overall gear ratio of 5.49 in third gear.
At the top of the hill if the trucks slowed
