2021 Cummins 1075 lbft peak torque at 1356 rpm
Apparently the 2021 Cummins makes its peak torque of 1075 lbft at 1356 rpm. Are you still impressed?
Forum Discussion
4x4ord wrote:Grit dog wrote:
Good grief...
Yup, lot's of confusion. I'm not sure what happened. Immediately after posting my torque curve reflecting 430 peak HP I checked Ram's website and saw they are advertising 420 HP, so, I changed my torque graph within about an hour. I don't know if Roy got a copy of my graph before I changed it or if he was thinking 430 HP from other sources. You can find claims anywhere from 400 to 430 HP for the 2021 Cummins.
Edit: I'm almost certain that even Ram's website was initially showing 430 HP for the HO engine but they currently are advertising 420 HP.
Let's me try re-shaping the equation for 420 hp. I too was confused, some sites quoted 430 hp, some 420.
I don't believe the official specs are on Ram's site yet, but I do see 420 stated on Cummins' site:
https://www.cummins.com/news/releases/2020/12/04/2021-ram-heavy-duty-legendary-pickup-engine-better-ever
What we really need is the official tq / hp curve. If the curve has flat hp plateau like we see on the marine QSB, then a 6 spd vs 10 spd would make very little difference in flat out performance.
In fact, tonight I'll try it for fun with the QSB curve. Let's call it a lightly modded / chipped truck - i.e. programmer in "tow" setting. I bet it'll make absolutely 0 difference (engine hovers @ constant hp during an upshift)
