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Message: <blockquote data-quote="[Joc]" data-source="post: 84200" data-attributes="member: 2823">ok guys.... correct me if i'm wrongbut this is what i understand..from servo's good article.... the PCV valve is the one sucking air into the intake manifold? The incoming air is from the air filter side, and then air and dirt is sucked into the intake manifold to clean out the dirt and pollutants? So when we cut the PCV hose and stick a MC in between it, we are actually making the intake manifold suck new and fresh air in besides just dirt? That's why it's called an MC? And so when you guys were talking bout the hose turning black, it's all the oil, dirt and pollutant from the camshaft chamber that is getting into your hoses rite? So all in all, we're just cheating a system that is designed to suck dirty air to suck new and clean fresh air? Hence it takes in cooler air, making ur engines perform a little (how much is little? hehehe, 0.1hp?) better due to the more condensed cool air? But in that article, it says we should maintain a vacuum in the camcover at most instants, hence by doing this MC thing, aren't we reducing the suction power of the intake manifold on the cam cover? Cause i mean, we are replacing a source here, the mass flow rate of air into the intake manifold should be constant, and by giving it 1 extra new source now, it should definitely reduce the vacuum effect rite? So guys, i guess opening the valve fully open is not a good idea after all. hehehe. So on your verdicts, after reading the article, should this modification be encouraged? I mean performance wise we don't know how much we're gaining here, and we risk losing the vacuum effect and hence destroying our engines. I'm not saying it will destroy the engines, i'm saying it might. Or maybe the vacuum that is still available is good enough already? I don't think we'll know cause we won't have the right set of stuffs to do the proper R&D on this.BUT, I'm not trying to be a smart arse here or anything ah, i'm just asking for opinions. Cause i mean, we all want the best for our cars rite?</blockquote>

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