im down to routing all my vacuum lines and stuff off the intake. when the PCV system is gone there is just a gaping hole about the size of a silver dollar on the intake manifold. How do you seal that off on a boosted application being it's not a threaded hole or anthing?
http://shbox.com/1/opti_vacuum_conn.jpg
I just put a vacuum cap on the pcv valve itself and I've never had a problem at 15 psi
I would run a PCV valve with a line to a catch can. in that line to the catch can, I would T in a vent line from both valve covers. Then I'd either vent the catch can to atmosphere or run a vent line from the catch can to the intake side of the turbo/blower. Cap the port on the TB, and you've got a good crankcase vent system.
Make sure you do something to relieve crankcase pressure either way. Mine was always run like Ponyhntr, and Ive seen people use a rubber plug in place of the PCV grommet. The rubber plug Im refering to is one of those quick fix freeze plug deals where you tighten a bolt to make the rubber expand and 'grab' into the hole.
both my valve covers are vented with breathers. will be doing AN lines and fittings sooner or later to a catch can
so cap the port UNDER the tb, Tee the pcv and the passenger breather and install catch can , then to the intake side of the blower....