Originally Posted by 2000AZ5.0GT

He's running a Vortech S-trim, completely different. With a turbo not only are your running close to 300* temps before the intercooler, but as Mustangman281 said, properly sized you will see full boost at 3200RPM, which is significantly more of a load on the engine. With a turbo, you ARE going to blow up your internals shortly after 400RWHP, and possibly before that depending on how much abuse your engine has seen prior to having the turbo on there.