New Ram/Cummins vs GM/Duramax on the IKE
VIDEO
Forum Discussion
Torque multiplication of the Ram Aisin 6-speed w/ 4.10
1st- 3.75 x 4.10 x 1,000 lb-ft= 11,275 lb-ft
2nd- 2.00 x 4.10 x 1,000 lb-ft= 8,200 lb-ft
3rd- 1.34 x 4.10 x 1,000 lb-ft= 5,494 lb-ft
4th- 1.00 x 4.10 x 1,000 lb-ft= 4,100 lb-ft
5th- .77 x 4.10 x 1,000 lb-ft= 3,157 lb-ft
6th- .63 x 4.10 x 1,000 lb-ft= 2.583 lb-ft
1-3rd are under-drive gears, 4th is direct, and 5-6 are overdrive.
Torque multiplication of the GM Allison 10-speed w/3.42
1st- 4.70 x 3.42 x 910= 14,627 lb-ft
2nd- 2.99 x 3.42 x 910= 9,305 lb-ft
3rd- 2.15 x 3.42 x 910= 6,691 lb-ft
4th- 1.80 x 3.42 x 910= 5,602 lb-ft
5th- 1.52 x 3.42 x 910= 4,731 lb-ft
6th- 1.28 x 3.42 x 910= 3,984 lb-ft
7th- 1.00 x 3.42 x 910= 3,112 lb-ft
8th- .85 x 3.42 x 910= 2,645 lb-ft
9th- .69 x 3.42 x 910= 2,147 lb-ft
10th- .64 x 3.42 x 910= 1,992 lb-ft
1-6 are under-drive, 7th is direct, and 8-10 are overdrive.
The Duramax was winning the torque to the wheels battle even with a 3.42 and it was also winning the horsepower battle according to the manufacturers ratings.
1st- 3.75 x 4.10 x 1,000 lb-ft= 11,275 lb-ft
2nd- 2.00 x 4.10 x 1,000 lb-ft= 8,200 lb-ft
3rd- 1.34 x 4.10 x 1,000 lb-ft= 5,494 lb-ft
4th- 1.00 x 4.10 x 1,000 lb-ft= 4,100 lb-ft
5th- .77 x 4.10 x 1,000 lb-ft= 3,157 lb-ft
6th- .63 x 4.10 x 1,000 lb-ft= 2.583 lb-ft
1-3rd are under-drive gears, 4th is direct, and 5-6 are overdrive.
Torque multiplication of the GM Allison 10-speed w/3.42
1st- 4.70 x 3.42 x 910= 14,627 lb-ft
2nd- 2.99 x 3.42 x 910= 9,305 lb-ft
3rd- 2.15 x 3.42 x 910= 6,691 lb-ft
4th- 1.80 x 3.42 x 910= 5,602 lb-ft
5th- 1.52 x 3.42 x 910= 4,731 lb-ft
6th- 1.28 x 3.42 x 910= 3,984 lb-ft
7th- 1.00 x 3.42 x 910= 3,112 lb-ft
8th- .85 x 3.42 x 910= 2,645 lb-ft
9th- .69 x 3.42 x 910= 2,147 lb-ft
10th- .64 x 3.42 x 910= 1,992 lb-ft
1-6 are under-drive, 7th is direct, and 8-10 are overdrive.
The Duramax was winning the torque to the wheels battle even with a 3.42 and it was also winning the horsepower battle according to the manufacturers ratings.
