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SN95 Cobras
PCV valve
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<blockquote data-quote="Toasty" data-source="post: 8077383" data-attributes="member: 39823"><p>IIRC:</p><p></p><p>Under positive boost conditions, the PCV valve will be forced shut, thereby not allowing much air past it and into the valve cover, on vacuum, it will allow crankcase gases to enter the upper intake and be burnt in the combustion process.</p><p></p><p>Further, you probably have *some* compressed air getting past the rings, even in a perfect engine. I think that the overall amount of pressure that might enter the valvecover/crankcase via the PCV is negligible.</p><p></p><p>Remember that teh 03-04 Cobra's have almost the same PCV setup as we do.</p></blockquote><p></p>
[QUOTE="Toasty, post: 8077383, member: 39823"] IIRC: Under positive boost conditions, the PCV valve will be forced shut, thereby not allowing much air past it and into the valve cover, on vacuum, it will allow crankcase gases to enter the upper intake and be burnt in the combustion process. Further, you probably have *some* compressed air getting past the rings, even in a perfect engine. I think that the overall amount of pressure that might enter the valvecover/crankcase via the PCV is negligible. Remember that teh 03-04 Cobra's have almost the same PCV setup as we do. [/QUOTE]
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