Hi guys I've recently (used to be on off but now more frequent) a screeching noise when on full boost at around 6-7k I hear a screeching noise until I change gear or stop boosting, sounds like belts slipping but surly not in 3-4 gear?? I'm unsure what this noise could be! Any help would be great
Cheers
Jack
Almost certainly the belts by the sound of it. A squirt of belt dressing might help, but the toothed belt kits the only way out of it at these revs.
See last post in Supercharger section.
Yeah as above, or get new belts.