Originally Posted by dieseldan2005
I also run isspro's. I am very pleased with them. They look factory and thats what i like best. I have a 35psi boost and a 1500 pyro. My truck only has an intake and exhaust and i build around 17psi max. You don't want to run your egt's over 1100-1200 for very long.
As far as the EGT's go...
IH (people that make our motor) say 1250 is the red line... You can tow all day at 1250 and not hurt a thing other then your pocket book from the fuel bill. You can go over 1250 for as long as you feel comfortable with, if you have been at 600 for the last few hours and come up on a pass and want to pull over it, going over 1250 for 20-30 seconds is fine. But if you have been lugging it for an hour at 1100, its not going to take nearly as long to get to the 1250 mark.
Your watching EGT's to protect the pistons, not the turbo. Also keep in mind there are oil cooling jets that spray the bottom of the pistons with oil. This helps keep them below the 1250-1300 danger area.