Join Date: May 2011
Location: Frederick MD.
Thanked 10 Times in 10 Posts
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
The only way it could possibly hurt the truck is if it's overboosting. Just keep an eye on boost and try to keep it under 30 psi.
The reason it's not super horrible on driving conditions is because it must be stuck in a mid vane position. 6.0's and most modern diesels use what's known as a variable geometry (VGT) turbo. This is a fancy way to describe a turbo with housing fins. Early "fixed vane" turbos like what's used in a 7.3 are more prone to "turbo lag", which is a condition caused by the turbo having to spool up before making good boost. Most of them had a wastegate as well to limit max boost. A VGT turbo minimizes turbo lag by having fins that change the turbo housing to minimize turbo lag, and control overall boost.
In your case the fins must be stuck in a relatively neutral position that doesn't create to much turbo lag yet still provides good overall boost.