Quote:
Originally Posted by jr_ss
Essentially though, it does help your rings seal "tighter" to the walls, which creating a vacuum will do.
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I disagree. The oem configuration would by your description help the rings seal tighter. Pressure alone does that as you know, when the rings are worn they aren't getting better by this or the oem config. A side effect of running more boost will help seal the rings temporarily, but that's on another plain of thinking.
The negative pressure, allows the piston and rings to move freely reducing pinging, slapping and knock which can be heard and felt at idle speed with a misconfigured catch can setup. (Plugged, capped or no vacuum setup)
You could simply try this by capping off the hose that would be sucking the air out of the valve cover, try it! If your rings aren't sealing i suspect you'll hear and feel nothing!
So, i disagree that this or the oem routing helps seal the rings tighter, but allows them to perform better with less pressure to fight against. WOW! all most lost myself there, don't know if I'm a believer or not!
