Ike Gauntlet 2017 3500s DRW 22,800# load
Pretty surprising results Uphill towing 22,800# 1. Chevy Duramax 3.73 axle ratio (445hp/910tq) 10 min 16 sec 2. Ram Cummins 4.10 axle ratio (385hp/900tq) 10 min 28 sec 3. Ford Powerstroke 4.10...
Forum Discussion
RCMAN46 wrote:
Here is possibly a major reason the GM Duramax and Allison does so well.
The Allison was designed with the Duramax and the controllers talk to each other. Also the GM engineers probably found with the Duramax and Allison combination the 3.73 gear gave the best performance for a wide variety of towing conditions including the Ike Gauntlet.
I did a spreadsheet comparison with a 4.1 vs 3.73 for the Duramax and the 3.73 would give the best results at 40 and 50 mph.
At 60mph the choice would be the 4.1.
I agree that the Duramax Allison 3.73 are a good combination for the test but so is the Powerstroke/TorqShift/4.10. And the Cummins/Aisin/4.10 .
I don't agree that the Duramax did so well. If it does any better than the outgoing Duramax the increase is negligible yet it apparently has 150 lbft more torque and 48 more horsepower....It ran virtually neck and neck with the Cummins which has 60 less ponies as well as less torque. The extra power of the Duramax really should have been enough for it get to the top of the hill at least 2 minutes ahead of the Ram.
