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#1
04-09-2023, 09:10 PM
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Which PCV valve flows best?
Having read several threads on the subject of crankcase ventilation questions come up regarding the amount of flow of the PCV valve. Discussions have varied as the how much flow is necessary at idle or cruise especially on modified engines with "rowdy" camshafts. I saw in one tread where the stock PCV valve flows 4 cfm max with little flow at cruise or wide open. The following thread on this got me thinking:
https://forums.maxperformanceinc.com...d.php?t=864137 Sugestions have been made that the Wagner PCV valve is adjustable to flow rate and does a better job than the 4cfm stock type PCV valves. https://mewagner.com/?p=444 Before investing the cost of a set of Crower 68404 valve springs on this PCV valve, I would like to know if anyone on the forum is using the Wagner PCV valve and found it to be better at providing crankcase ventilation overall than an over-the-counter PCV valve? Appreciate your thoughts on this.
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