Pre- turbo EGT's... what are you seeing?
Primarily looking for Dodge numbers, but let's hear from the Dmax and P-stroke crowd too. Post your temps (preferably pre-turbo temps) and the conditions under which those are achieved (camper on or o...
Forum Discussion
On a long steep grade my pre-turbo temps can easily hit 1300 with the tune that I usually run. I have de-fuel set to that level but will usually back off the throttle a bit when I hit 1250, at least if it looks like it's going to be at that temperature for a while. Running on the flat at 70-75 mph I'm usually between 600 and 800 degrees. I read somewhere that the alloy used in Cummins piston melts at 1250, but with the piston riding in a cooled cylinder and being bathed in cooler oil maintains a lower temperature that the exhaust gas. I have also heard that guys using the Cummins for pulling competitions will often exceed 2500 degrees for brief periods of time.
