Quote:
Originally Posted by PolynesianPowerhouse
Once you tap the dirty side, regardless of filter, you're gonna see something.
Intake or no intake. Paper or aftermarket filter... the vacuum comes from the tb blade directly from the engine. On the dirty side the valve is after the filter... but even if it was before the filter, it still enough at wot and heavy acceleration to draw enough from the pcv at the rear of the engine.
So in other words, on the dirty side, things are gonna get caught 
Best thing... the less oil diluted air that enters, the more clean air the goes in. Small performance increase via efficiency |
Not sure what you're referring to here. The air filter causes a pressure drop on the sucking side that is greater in magnitude than the pressure drop you experience from just the bernoulli effect caused by simply having air moving across the dirty side tube.
Adding a catch can inline on the dirty side isn't going to increase how much oil gets blown into the dirty side pcv tube. In 4500 miles i've had no oil blown by into the dirty side of my pcv system that i can detect. The only difference I can see between mine and yours is the environment and that I've been using an air filter that significantly reduces the air pressure drop across it from basically day one.
I dont expect that to change but I'm adding the can anyway because it can't hurt. My Connection will be similar to yours, using the same can and basically same mounting location. I'll be putting about 150 miles on it this weekend (highway) though i'll probably get a bunch of stop-and-go speeding in too.
My clean side can still has no observable oil in the gauge tube. No surprise there.
granted. the pressure drop difference caused by paper vs cotton is probably not that great on clean filters.