Ready to race!
Perfect I think I'll run a set up like yours. I just need to modify my cat can now..., thanks again!If venting to atmosphere, I would take a catch can with an filter breather on top and 2 inlets. So both the PCV hose and breather hose vent to the catch can
As for your setup option of putting a filter on the breather filter and the PCV hose to the catch can, your will need a filter on the catch can too, so I would put the breather and PCV pose to the catch can since the catch can is already at atmospheric pressure
If your want to recirculate, your way by routing it to the pre-turbo side is good
But post turbo, a check valve is mostly a one way valve that allow the flow in one direction (isolate vacuum from boost), by using a check valve the boost won't go in the PCV valve, but only the vacuum and under vacuum the PCV is either fully close or partially open. You would need a check valve that open with just a little vacuum so you would be close to the atmospheric pressure
Honestly, I would just route pre-turbo if I wanted to recirculate and if I want to vent to atmosphere, both the breather and PCV hose to the catch can
I really thought this was a simple task I didnt realize how much there was to it. You've saved my engine for the 100th time haha