Last night i was having some fun running with a new cayenne turbo s in a canyon full of twisties. As I was going for a pass I heard the sound of my blow off valve venting to atmosphere. Problem is....I don't have a bov.

After coasting to a stop, i found that the coupler had came off the compressor outlet and there was oil inside the coupler and also inside the compressor outlet. It wasn't a lot of oil, but it was very noticeable.

Is this normal on oil cooled/lubricated turbos? (as opposed to an oil/water cooled turbo) Or is a seal leaking?

The turbo is running fine, spools up great (6 psi by 3600 rpm) , but this also explains why I am burning a little oil.

 

Most likely a leaky seal. You can get a rebuild kit for a nominal fee.

 

Some oil in the intercooler tubes is complete normal and a good thing. If your cam cover breather is run to the turbo inlet tube, then yes, you should have some oil blow by. A lot of it? not really. A leaking seal will soak thru turbo hose and drip on the floor.
Stephanie

 

I do have the cam cover breather running to the turbo inlet. This makes sense. Thanks.

 

I've got some coming out of mine too, has been for almost a year, no problems yet...
When the hell are we giong to go cruise and beat up on V8's?

 

Sooner than later, I need to go for a ride in your car. Need to feel more boost to let me know what I'm missing out on.

 

Let me know when you have some time, I've got all of next week off.