04/29/2024
A little while back I posted photos of a Ram 2500 truck we installed a supercharged 426ci HEMI in. The customer did some testing comparing the loaded results to a 2018 Cummings powered truck he also owns. Here are his words.
However, today, I did a thorough test. I tested with both the Ram 2500 with your motor work - then pulled the same loaded trailer with my 3500 Cummins Dually. The Cummins is a 2018 385 HP and 930 ft. lbs. torque model. It is a good, strong, towing truck.
I loaded a gooseneck with steel plate (per the pictures) and weighed the whole rig on our platform scales - the truck, trailer and load with me in it was 35,220 lbs. (the 2500)
I did 2 tests:
The first was between 2 fairly short points to test off the line acceleration. As I was afraid of twisting a drive shaft off from a dead stop with 35,000 lbs. gross, I started this test at 25 MPH. The gas HEMI did this pull in 13.84 seconds with a top speed of 58 MPH. The Ram 3500 Cummins took 16.31 seconds with a top speed of 49 MPH.
The second test was starting at 25 MPH at the bottom of a long hill that is nearby with a cutoff point about halfway up the hill at a mailbox. I would guess this to be about 1/3 of a mile. The gas HEMI took 39.77 seconds with a terminal speed of 78 MPH and was still accelerating strongly. I was originally going to stop the test at the top of the hill, but did not want to go over the top with that kind of load at over 90 MPH - so I picked a mid way cut off point once I saw the speed and was halfway up the hill.
The Ram 3500 Cummins took 50.18 seconds with a terminal speed of 57 MPH and was only accelerating very slowly at the end of the pull.
Conclusion:
The truck pulls like a locomotive. Only one downside - on the longer pull up the hill - the gas gauge visibly went down. I knew to expect this. You have to burn fuel to make power and there is plenty of it. More than I will ever need for most of the towing I will do with this truck - but nice to have when you want it.