I have a tc76 BB turbo and it is making a weird noise. It has about 10k miles on it and it is out of warrenty. The turbo is on a STS kit with a 1.15ar exhaust housing and seems to boost fine and makes great power. At idle the turbo doesn't free spin anymore and it makes a squealing noise when it comes to a stop. It's been doing this for a little while but the performance of the turbo hasn't changed other than the noise when it comes to a stop. How bad is this? How much is a rebuild on a BB unit if it needs it? Thanks

 

it sounds like u have a bearing bad or going bad... the first thing i would do is pulloff ur air filter, grab the turbo wheel and try to move it side to side and up and down... ull know if there is to much play... the outher thing u need to look for it the turbo wheel rubbing on the housing... i had to replace my turbonetics 76mm bb cartridge last year and it cost me $9?? and took 3-4 weeks if i remember right... but my housings were still good... if u need new housings than ur talking $1500-2000...

 

oh by the way... my wife really doesnt like u... i was happy with my tahoe and its bolt ons until i saw ur videos and testiment on the sts website... now im 2 sts kits, 2 motors, 1 tranny + $35,000 into it... i love it and so does she but she would rather have the $$!!! my new dd is 2005 Silverado SS 410ci strocker with a 76mm BB sts kit... i just finished the new motor and hope to have it tuned and ready for weekend abuse in the next few weeks!!! im shooting for 700-800hp and 1,000tq!!!

 

I wish I could say that I am the cause of your sickness but I'm not on the STS website. My videos are in my sig though. It sounds like you have some nice rides.

 

my bad than!!!! i hope i was able to help u...

thanks but i only have the ss now i let a friend drive the hoe and he was hotroding it "Dukes of Hazard" style in to a pond... it was a sight to see an 8,000lb 4x4 tahoe on 22s complety air born...