Rough idle with forced induction

Originally Posted by jwick See the pic tells a thousand words. So the primary is the two that tie into the IM right where we tapped for the BOV feed.

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Rough idle with forced induction

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08-22-2014, 01:41 PM

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Mitco39

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Quote:

Originally Posted by jwick

See the pic tells a thousand words. So the primary is the two that tie into the IM right where we tapped for the BOV feed. That must not have as much of an effect on the system as the secondary because all the kits I know of keep that setup.

yes they tie in there and under idle the manifold is under a vacuum that sucks in crankcase vapors. Now before the kit the crankcase would be filled with air from the intake between the maf and the throttle body. But now this air is just entering the system through those two fiilters and straight into the intake at idle.

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