Docwagon1776
Senior Member
- Joined
- Mar 16, 2012
- Posts
- 4,661
- Reaction score
- 9,964
- Location
- Midwest
- Ram Year
- 2012, 2021
- Engine
- 5.7, 6.4
My "Limited" doesn't have that... it doesn't have park sense or wireless charging or power side steps or a decent stereo system
(hoping you can hear the bitterness)
But I do have the Hemi and 3.92 gearing - that's what I wanted.
I don't understand how my towing capacity exceeds the 2025 Limited (HO with 3.92s) by 2,000 lbs. It is supposed to have so much more HP and Torque than my V8 (and probably lighter). Doesn't make sense.
Reposting a reply I made to a similar question in another thread:
I'm not 100% sure, but I've got a solid guess that it boils down to heat shedding and knock resistance, and how those two things interact.
The HO is higher compression and higher output, it's going to be less resistant to knock and will need to pull timing earlier. Pulling timing earlier results in more heat due to more fuel consumption for the same level of power. More heat means it's harder for the engine's coolant system to shed that heat. These trucks use coolant to cool the turbos, not just oil, and use an electric water pump to keep coolant circulating even when the engine is off so heat shedding is a big deal for these.
