



I have a question I don’t know if someone can help me. To keep it simple I did a N54 swap in a bmw E30. My Evap system is completely deleted so the Evap port on my throttle body was just capped. Second my turbo Inlets were deleted and I am running mesh filters directly on my turbos so no inlet pipes. Because of this I’m not sure where to route my PCV hose off the back of the valve cover (the one with the flapper that usually goes into the inlet). Do you think I can route it directly to the throttle body port or will boost blow up my valve cover? If I leave that flapper to atmosphere will that cause a vacuum leak ? Right now after completing my swap when I accelerate slowly or coast the car is kind of bucking so I’m wondering if it’s a boost leak. I smoke tested the whole system and it’s like the hose on the back is open to atmosphere. Thanks for the help I’m very confused with this PCV setup. As you can see if I smoke tested inside valve cover it comes straight out the PCV without building pressure. I have a new BMS PCV valve installed too.