I was wondering if anyone has come up with a rough max EGT for "x" timing. We know a stock 04.5-07 will run 1450°+ when towing and not melt a thing, but the timing has a lot of heat rejection to the piston. So when we bump the timing we get more heat to the cylinder, and less out the exhaust so we need to decrease our safe EGT's when towing.
In looking at Rich's "gift tune" and rpms he has a max of 14.8° at 2,000 rpms and 16.2° at 2,200 rpms, which is range many people like to tow in. But then at 2600+ it's 20°. Based on that I would think you could handle more EGT's at lower rpms than upper rpms, yet EGT's aren't referred to that way. It's usually 1300° continuous, 1350° max, or 1350°-1400° 1 minute out of 5, etc.. But looking at dynamic timing the rpm and load would seem to have a huge impact. I don't even want to look at stock tables, as we all know those were not designed with power/performance in mind.
Airflow has to have an impact too, but I am not sure how much as 1200° out the exhaust is still 1200° at 10 psi or 40 psi.
Any input, or experience?