ok after reviewing this thread about 50 times and inspecting diagrams of the crankcase ventilation system, this is what ive come up with.
Hopefully my pictures wont die so soon and everyone can use these diagrams of how to set it up properly.
please advise if i have it drawn up correctly. it seems right to me, but its hard to confirm without bumpstart diagrams and the internet being full of bullshit.
This is how im looking to set mine up
oil filler vent, middle plate vent and charcoal canister vent all vent into the catch can.
PCV is hooked up as per factory (going off the diagram below) except instead of sucking out of the oil filler vent, it now sucks clean air out of the top of the catch can.
and under high load the turbo sucks out of the top of the catch can via a upsized hose barb via a one way valve.
I have gone with this method because i want to keep the PCV valve funtioning and dont want to have a rocker cover breather filter thing. I want to keep it as factory as legal as possible.
this is the catch can that im having made in the near future.
can anyone see any problems with this arrangement?
this is the factory s5 and cosmo 13BRE setup i was using.