Engine/Transmission (1994 - 1998) how much is too much?

[Timgibson]

as far as egt;s go how hot can you go on a regular basis? ive allways tried to stay at 1250f or less,but with recent mods i can blow right past that number! :--)

 

[lil red cummins]

i am not sure if i have a magic number for max, but at high temps it is important how LONG you hold it there. seeing a quick jump to 1500 is not the end of the world if it's only there for a few seconds. heat soak in the turbo is the worst enemy and only extended time at high temps will cause that. if you hold it at 1250 for 5 minutes, that is a reason for concern.



we need an answer from the turbo mfr's to get a solid answer.



jim

 

[Neibe]

I was told by a Cummins mechanic that at 1225 the exhaust manifold is glowing red. This will have to be sustained for a few minutes.