S91 Turbo Problem.
S91 Turbo Problem. Ok, so here is my question. I have pretty much a brand new S91 turbo from Borg. It does not want to spin when the compressor housing is on it. It gets locked in. When I pull the compressor side off the turbo it spins with no issues. When I put the compressor on and tighten it down it jams the turbo and if I rotate the compressor it un-jams it but it still sounds like it scrapes the walls.
Any help would be good. I just need to know what to do with it. The turbo has pretty much 0 miles on it.
Here is a picture of what might be going on.
[IMG]
[/IMG]
Any help would be good. I just need to know what to do with it. The turbo has pretty much 0 miles on it.
Here is a picture of what might be going on.
[IMG]
[/IMG] I took the compressor housing off to look at everything, all seemed fine to me. But could this be caused by someone dropping the compressor housing? I bought the turbo new off someone about a year ago and the project was just complete.
I had the same problem with my gt-91. I got a new housing from Jose and cured the problem. He told me that the dyes used to machine our housings wears out after around 50 cuts leaving the housing out of round even it looks fine by eye.
Sounds like good news. Yeah I will talk to him on Monday. I heard the same thing from my friend he told me that it could be the housing was just bad. But do you think I would need to balance the turbo internally even if it scraped a little bit? I mean it was never fired.
They are really sensitive to getting them clocked correctly. I took the cover off of my S95 and didn't put it back on exactly perfect the first time. The wheel would barely touch the compressor cover.
Trending Topics
It shouldn't be. If thats really the case with Bw I would move onto something else.
LS1 Tech Stories
The Best V8 Stories One Small Block at Time
6 Common C5 Corvette Failures and What's Involved In Repairing Them
Pouria Savadkouei
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph
Verdad Gallardo
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked
Pouria Savadkouei
Top 10 Most Powerful Chevy Trucks Ever Made!
Hennessey's New Supercharged Silverado ZR2 Has 700 HP
Verdad Gallardo
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes
Verdad Gallardo
Awesome K5 Blazer Restomod Comes With C7 Corvette Power
Verdad Gallardo
10 Camaros You Should Never Buy
10 LS Engine Myths That Refuse to Die
Verdad Gallardo
Staging Lane
Joined: Mar 2011
Posts: 83
Likes: 0
From: Chicago, IL
the bolt holes should be concentric with the opening. if it is hitting based on how it was clocked, then the housing wasnt machined correctly
Sent the turbo out to Jose at FI, he told me most likely it's just a bad compressor housing. I should be getting it back early or mid next week. Hope everything goes well. As soon as I get it back Dyno numbers will follow.
