Sources: General Motors , 
quote: A typical diesel exhaust temps
quote: When you say 26+lbs are you talking about inches of manifold pressure?
quote: Oh and Spuke......Those powder forged rods(PFR) that Ford uses were one of the first things to go. Went with machined titanium. Too many of my friends cracked/broke/bent those PFR when they went over about 450+HP.