Quote:
Originally Posted by d1zguy2
The PCV side left side of the VC is the one that provides vacuum, not running the right side to intake pre maf will cause a lean condition and no vacuum in the crank case. the restrictor is there to prevent sucking up oil but running a closed catch can is and routing it to the intake pre maf is all you need, the restrictor on the stock hose is there to prevent sucking up actual oil. With a closed catch can you don't actually need it.
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wrong. the restrictor has nothing to do with 'sucking oil'. Look at where it is positioned.
please read
https://www.sr20-forum.com/informati...on.html?page=1
From Ben,
Quote:
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Originally Posted by BenFenner
Without it, idle air is less controllable, and the crank case can't ever really hold a vacuum at all.
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Repeat: the restrictor is there to assure the crankcase can hold a vacuum