Does anyone know what parts are needed to setup a catch can to the pcv side correctly like shown in the diagram below. How do i move the the pcv valve to the catch can will i need some sort of fitting to go into the rocker cover?

 

I plan to cap my intake manifold and run the PCV valve and crankcase breather to the catch-can. I will put a filter on the catch-can to allow it to breath clean air. Would it be better to route it back to the intake pipe rather than a filter open to the atmosphere?

 

you dont wanna put the pcv like that, just leave it as stock and put the catch can from intake to pcv valve.

 

But from what i read having it the way shown would stop the catch becomming pressurised when on boost as it would be directly linked to the intake.

 

that nothing to worry about being all catch cans are welded metal canisters.
at any rate I used a class type one and it never exploded.

 

THe pic above is right. You also want to put another catch can in between the airfilter and valvecover vent so the turbo and intake don't suck up oil.

Venting the catch cans will cause you to lose the vacuum evacuation effect that is needed to draw out blowby gases.

 

if you do it like the picture above, during high boost, that pcv shuts. now that oil will be sucked into the crank case. (thats not where you want the oil at)
how if have the can after the pcv during WOT or high boost the pcv shuts and there is no way for the oil in the can to be sucked back into the crank case.
also like you said a catch can from breather to intake stops oil being sucked into your turbo/intercooler.