Your Towing & Payload Numbers for 2018-2020 Ram 3500 (

[TerryH]

How do I know if it has been done...I knew about teh CP4, but had not researched it yet...

Go to ramtrucks.com and put in the VIN. That will list any outstanding recalls.

[Raife1]

Go to ramtrucks.com and put in the VIN. That will list any outstanding recalls.

Thanks - perfect!

[JR the Burner]

Why wouldn't you get the HO since your towing? You might want a bigger rig someday.

Worse gas mileage, more turbo lag. The HO engine runs lower compression to get more boost.

[fmartinmn]

Check out this truck. https://www.ramtrucks.com/towing/tow...3R3JL3LG122131
payload 4110
max towing 19,930

[Thorvald]

No problem with gas mileage on my HO, without a trailer I can get down below 11 l/100 km which is 21-22 MPG (typically 15 MPG when driving around town). No turbo lag that I can find, it’s a truck with an ECM programmed to tow, it’s not a race car.

If your going to tow really heavy, get the most capable truck, if not, buy what’s suits your fancy.

[ajg617]

No problem with gas mileage on my HO, without a trailer I can get down below 11 l/100 km which is 21-22 MPG (typically 15 MPG when driving around town). No turbo lag that I can find, it’s a truck with an ECM programmed to tow, it’s not a race car.

If your going to tow really heavy, get the most capable truck, if not, buy what’s suits your fancy.

Same mpg figures - maybe a little closer to 17mpg around town since the CP3.3 upgrade. Hit 21.5 on trip from Virginia Beach to NH - hand calc'd. No turbo lag - again since the 3.3 upgrade - amazing performance.

[ajg617]

Check out this truck. https://www.ramtrucks.com/towing/tow...3R3JL3LG122131
payload 4110
max towing 19,930

For comparison, my VIN for same truck with HO/Aisin is
payload 4013
max towing 24,800

Kind of surprised at the difference in max tow.

[JR the Burner]

Same mpg figures - maybe a little closer to 17mpg around town since the CP3.3 upgrade. Hit 21.5 on trip from Virginia Beach to NH - hand calc'd. No turbo lag - again since the 3.3 upgrade - amazing performance.

I'm not saying it's a huge difference, but HO runs lower compression so at the same boost level it'll make oh so slightly less power. But at the same time, the Aisin is geared a little differently too, like the gear ratios aren't the same as with the 68RFE and of course how you drive it is going to make a bigger difference than probably anything else.

[ajg617]

I'm not saying it's a huge difference, but HO runs lower compression so at the same boost level it'll make oh so slightly less power. But at the same time, the Aisin is geared a little differently too, like the gear ratios aren't the same as with the 68RFE and of course how you drive it is going to make a bigger difference than probably anything else.

Lower compression ratio but higher torque.

https://www.cummins.com/engines/cumm...bo-diesel-2021

[JR the Burner]

Lower compression ratio but higher torque.

https://www.cummins.com/engines/cumm...bo-diesel-2021

Yea it's higher torque at a higher boost level. So it's more potential for sure, the turbo is feeding more air into the engine. You also have to feed more fuel too.

The HO I think is a slightly bigger turbo, the engine is lower compression, there are a few other upgrades I found when I was previously researching but it has been some time. I was eyeing a 3500 with HO but then the pandemic hit and stuff I was going to do with it didn't matter.