My Turbo E30 thread, ABORTED. info on page 7, post 170.

do not crush it. it creates compressor surge. bad idea.

mod it per here. http://www.thedodgegarage.com/turbo_bov_mod.html

holds unlimited boost. doesnt surge unless its letting off 2psi of boost and that can be fixed with a little creative vacuum solenoid plumbing and a WOT switch.

Brian