So, does anyone really know TM?

[kthaxton]

As the title suggests, I'm wondering if anyone here really knows how torque management works and when?

Admittedly, I am new to the Diesel world and TM (TM is not exclusive to Diesel's however) but I am not new to trucks and mechanical things in general. By using my logic and some assumptions, and further concluded by some quick Goggle searches (not Ram specific BTW), it would appear, and logically so, that TM would only be utilized during shifts, accelerating from stops and possibly heavy acceleration at speed. These situations logically would be hard on a trans and the rest of the drivetrain.

I seem to hear a lot of talk on forums (this and others) about TM limiting torque at any given time/gear/speed/scenario and this just doesn't seem logical to me. Some imply, or actually state, the engine will never put out its full torque because of TM. Seems ridiculous and illogical for a manufacturer to increase torque every couple of years then prevent the engine from being able to utilize it, ever. I also see many posts implying that TM is somehow transmission controlled, when to me (again, my assumption) it would be the engine PCM limiting power when accelerating and when the trans is shifting.

So, who knows?

 

[Bob4x4]

Without torque management you could not keep a trans alive behind the Cummins.....................Ask anybody with a programmer that does away with all tm

 

[kthaxton]

I know its purpose, I'm not questioning that. I'm asking when/how exactly is it utilized. I suspect there is a lot of myths being communicated, but I do not know this as a fact.

 

[NIsaacs]

This might help.

Nick

https://www.turbodieselregister.com/threads/252381-Torque-management-Myth-mystery-or-fact

 

[kthaxton]

Thanks for the link. It is still hard to discern what is factual however.....but in my mind, member cerberusium is likely on the right track......because he is pretty much saying what I already believe to be true! Funny how that works with "facts"!

I wish we had a "PCM Engineer" or "Cummins Engineer" member here.

 

[Newsa]

There are reports of deleted trucks with the G56 that have tuners who have dialed down their torque management until the clutch slips and then backing it off a bit. Apparently, there is more torque management than I previously realized. I wondered why I could accelerate faster in 6th gear than any other gear. I'm thinking that torque management is turned off around 50 mph.

 

[sag2]

You can watch actual torque output on wi-Tech, so I suppose if you had someone watching the tool with torque, throttle (APP) position and gear you could probably make some assumptions.

 

[Jan2500]

My truck has plenty of torque and it is stock.

 

[grabinov]

Does the Edge CTS show Torque output? I'll have to look for that...

 

[kthaxton]

My truck has plenty of torque and it is stock.

Do you want to elaborate on this? It is kind of, well, totally unrelated to the discussion.