Krank Vent replacments

[Kracka]

I have the same catch-can that Scheides has, which is the aluminum tank next to his battery. Using a fuel filter as in the picture above isn't really a "catch-can" and isn't the idea setup for a few reasons. 1. It doesn't catch most of what a true catch-can does, and 2. Try blowing through a small air filter and one of those fuel filters. Much more back pressure is created by the fuel filter since the filtering medium is designed for gasoline, not air. Under boost (when the PCV valve is shut), the fuel filter is making it much harder for pressure to escape from the crankcase.