Quote Originally Posted by Lieney View Post
My catch-can had an orofice that was causing a slight restriction and increased pressure in my crank-case.
The over-pressurisation of the crank-case caused my turbo seal in the compressor side to leak.
There were other issues aswell, but ultimately, I had to replace my turbo.
In my car I found the best option to make it work was no restriction or valve between the PCV outlet, through the catch-can, and into the inlet after the air cleaner.
Crank case pressure can = worn piston rings, worn bore, possible crack. Not good
what brand catch can mate