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max out
12-10-2004, 13:19
What egt temp are most of you waiting to see before turning off the truck ? I wait for it to drop into the low 300 range on my attiude screen.

More Power
12-10-2004, 13:52
In general, by the time you slow down, pull off the road and park the truck, the EGT has lowered to a point that most won't need to be concerned about residual EGT.

However, a worst case scenario would be to tow up a long steep grade, then shut off the engine immediately once reaching the crest. In this or a similar situation I'd let the EGT cool. 300 is a good target temp.

The LB7 turbo center-section is water cooled (contains coolant passages). This helps with EGT/temp shut down issues as well.

MP

rjschoolcraft
12-10-2004, 16:17
300F is a good target egt for shut down. This should prevent heat soak temperatures in the turbo from exceeding the coke point for the oil.