Quote:
Originally Posted by cotbu
All it needs is a manifold vacuum source. It's a simple design, you guys just need to know what it does and why it's there. Google it or something, the first part of this thread makes the system better. Do it or not! completely eliminating the system or killing make no sense to me.
|
From reading about it, it seems that generally the crankcase vent tube is considered a part of the PCV system. The main part actually. The PCV valve's only job is to provide vacuum for it and keep pressure out, and on some motors it helps filter contaminants.
However, on the SR we already provide vacuum for the crankcase breather by connecting the valve cover to the intake, and we filter contaminants by using a catch can, which is basically what a PCV system is. So what we consider the PCV on our motors (the PCV valve) is pretty much useless, as far as I can understand. Plus on boosted motors it only functions in idle, and even if it helps filter anything, it would still be sucked out through the vacuum to the catch can (a stock SR does not even use a catch can between the valve cover and intake), so I still do not see the point of it.