correct, the PCV will evac the gases on decel only.
never hook a catch can up pre-turbo, otherwise you'll suck oil out of the catch can into the intake, especially at big boost.

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Long live the WRC

pcv will also suck gases at idle, and bring fresh air through the crank case, to help get rid of water, and acid forming nasties from your crankcase

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Version 6 STI

My rear main is pissing out at the moment! Just got a new clutch and genuine rear main seal ready to go in. Don't want to be blowing it out!!!

Some of you guys have been sucking too much gas into the cabin ...Picture below as Subaru made it...

Now assuming you have some type of medium in the catch can like foam then the oil will be collected before the air is returned to the system. This is how Sean from ASG plumbed my system and it works well.

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Speak to Shane @ SMC Tyres, Unit 6/385 Sevenoaks St Beckenham WA 6107. Mobile 0413 128 087. Tell him Maddog sent you!

This is how I ended up plumbing it. I haven't had chance to run it yet as the gearbox is out. See how it goes 2moro......

scooter, do you still have a pic of how you plumbed your catch can? its coming up as being removed or deleted.

cheers mate

Wow, blast from the past thread. Don't have pic any more. Contact Jo4an and he should be able to tell you what goes where as he has the car now. I remember I blanked off the pcv valve though.