Question about boost.

[spenc938]

I have a friend with a 97 Silverado single cab long bed. It has the 6.5L Turbo Detroit Diesel. From what both him and I understand, these typically run about 7-8 lbs of boost stock. His is running 17-18 lbs. We're just curious what has been done to this truck. He has only owned it for about a year, and as far as he knows nothing has been done. With quick glances under the hood, neither of us can see why it is running so high...

Any ideas?

[spenc938]

Anybody???

[Springthing]

So very, very, totally out of my league on this one.

Good luck finding the information you want.

[tlperry68]

My friend has a boot gauge on his Banks equped Powerstroke. He is pushing 25 psi at grades pulling a load. I do not know what psi your motor should operate at from the factory. Some things to consider would be new turbo or possibly a faulty gauge. I doubt that any down line constriction is causing excessive boost without damaging or crushing an air hose.
Sorry, all I can think of.