otiosity

Sorry if this topic has already been covered, but yes i did search. Do you really have to run the catch can setup with a turbo? I dont see why the setup that the v8 guys have been using for years wouldnt work. It consists of a hose coming from the pcv valve hooked to a piece of pipe cut 45 degrees and welded in parallel to the flow of exhaust gases in the downpipe. This produces a natural vaccuum on the crankcase. If i knew how to post a paint pic, then i would. Someone explain to me why this wouldnt work...