Hi folks. I have a 5.3l GM LM7 Vortec with a Magnuson MP112 supercharger. Do I need to have a PCV valve that is designed to handle the pressure range of the supercharger?
That is good to hear. I believe the vacuum port on the back of the blower does not see boost which is where that brake boost comes from as well. I need to verify this. I can put a check valve in there as 64nailhead above suggests - great idea.With 6 lbs you will be fine with a good working stock PCV Valve I never had issues on any of my supercharged cars and trucks until i got into much higher boost levels. In my experience 12 to 15 lbs of boost is where oil sucking became a concern you had to deal with. Youll be fine, sounds like a Bad Ass set up you have CONGRATS 🍺