Tuned cm870 egt's

[berrytrucking94]

(03-13-2018 )tree98 Wrote:  What's the hottest the after turbo egt's should get on a cm870 that they claim is set to 650 h.p. At the flywheel ? This thing seems like the sky is the limit ! I was told not to go over 1,000 degrees and I never really go over 950 for more than a couple seconds. It just seems like it starts really making a LOT of power around 950 degrees and you could easily go way over 1,000 if you weren't careful because it builds fast!! Is all this normal on a tuned engine?

650hp tune in mine as well, just take your foot out and shift down accordingly when they climb too high.

If the egr is shut off the truck can’t regulate egts as well so your foot is the best way to manage turbo temps

The lower you keep the temps the better off you are. All depends on the weight you haul and driving circumstances

Rawze has a thread talking about holset turbos and how Much heat they can withstand/for how long. Maybe someone can post it on here for you to read through. Lots of good info