I was told by very reputable people (Groundzero) that if you have a high horsepower, high reving engine you should use the breather (which I do), because at high RPMS the oil pressure sometimes sends the oil out that hole. Without the breather you are recirvulating oil through the intake system, which slows your car down and makes it more prone to detonation.
What do you guys think? I may be missing a few steps in between, but what abotu the general idea?
In that instance you should get a catch can, and not use a ghey ass filter, that is 1) letting out harmful vapors, and going to clog under such conditions. I have oil in my intake arm, TB, IM, everyone does, it's called blow by.
ok i think people are starting to talk bout different things here, that needs to be cleared up.
the valve cover breather and PCV system are different.
if you use the endyn can, you no longer have vacuum in the system. its designed to catch the oil and return it to the engine via gravity. it just vents everything else to atmosphere through the huge filter on top. the endyn system is essentially all input. the only output is through the filter.
if you want to keep vacuum in the pcv system you use a closed can with an in and an out. no filter.