Breathers, PCV question

66fs said

Yeah, usually at cruise. Next to nothing at WOT. I was just trying to point out that the PCV is not a vacuum leak when you need need it most. The opposite of what was pictured.

Click to expand...

Yeah, I didn’t understand that picture myself.

And to your point about WOT, FB and I both use a PCV and pan evac. That way, at WOT you have something pulling negative pressure in the crankcase.