Turbo Compressor Housing Boost Leak

[RATM]

Hello. I just wanna say hi to everyone, as this is my first post ! Happy to be on the board. I have this problem. I did a boost leak test and found that my 2 compressor housing were leaking all around, where it mate to the turbo core. Rs580 turbos. Is this normal? Is there a tolerance? I see everyone boosting 14 psi with the boost restrictor removed, and i only boost 10 psi without it... I was thinking that maybe this was caused by my boost leaks.

[GTScotT]

Nope, thats not normal. It is a zero tolerance affair, you will need to fix this.

If you plan to do any other work to the car I recommend you consider those options now. Removing the turbos is not a pleasant experience (or a cheap one if you are not able to do it yourself), so you should only plan to do this once.

Not to say that you will need to change the seals again and again but the RS580 turbos are fairly ordinary in the grand scheme and changing to a better pair will require a re-tune. However, by the seems you are running these at a fairly 'stock' level and I am concerned your car is currently untuned. That could also result in a fair amount of damage..

It sounds like you may have just opened Pandora's box

[RATM]

Thanks for your reply ! Yeah the car run a lil rich. And yeah i have this Veilside ecu which is NOT tuned for my car. Anyway we cant find any info on those VX-Rom chipped veilside Ecu.... I'd rather run a lil bit richer as it does right now, than lean. I do all the work myself on my car, and saw lotta thread about putting a very thin layer of RTV copper around the compressor, to seal the leak. It seem to work. I dont really understand Garrett on this one. Lotta turbo brand put a big o-ring to seal the compressor. Garrett does not... BUT if u buy a turbo rebuild kit, it comes with a o-ring for the compressor...

[Dan_J]

if you go into a shop that mainly does o-rings and seals they should be able to find you a large o ring to suit, ask your local enzed/pritek / hose shop