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Deleting the Crankcase vent?

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Old 03-06-2014, 02:11 PM   #16 (permalink)
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Old 03-06-2014, 02:19 PM   #17 (permalink)
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Originally Posted by SPOHN View Post
Or just block off the holes in the intake tube.
But if you do that then lines 6 and 14 (and the filters on them) are going to be exhausting much more than they already are, which could cause oil vapour to start making a mess of the engine.
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Old 03-06-2014, 03:05 PM   #18 (permalink)
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Yea I just haven't seen that over a period of a year in track environment with my car. And the front two are freely open.
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Old 03-06-2014, 03:12 PM   #19 (permalink)
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But if you do that then lines 6 and 14 (and the filters on them) are going to be exhausting much more than they already are, which could cause oil vapour to start making a mess of the engine.
yeah, why would you do that?
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Old 03-06-2014, 03:19 PM   #20 (permalink)
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Yea I just haven't seen that over a period of a year in track environment with my car. And the front two are freely open.
Same here. minus the crazy track time.
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Old 03-06-2014, 05:36 PM   #21 (permalink)
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venting the PCV valve will not harm the motor, only reason why its recirc into the intake is for emissions purposes

just whatever you do dont close the PCV, either have it recirc or vta, if you close it off entirely, you will harm the motor
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Old 03-06-2014, 06:50 PM   #22 (permalink)
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I always run PCV systems as they come from the factory, no harm done. When I turbo the car, I just relocate the fresh air vents to pre-turbo how they come on factory turbo cars.

The oil going through the intake is extremely minimal. It builds up a thin residue inside the piping, but its never slowed my car down or caused a failure. I never really understood all the stress over catching it in a can and all the hoses all over the place. But I wouldn't eliminate the setup either.

The way the BP turbo kit has you do it makes plenty of sense since the turbo inlet is rather far away from that point.
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Old 03-10-2014, 11:36 AM   #23 (permalink)
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Originally Posted by juld0zer View Post
deleting 6 and 14 is a bad idea for NA as you'll get idling issues.
look here: HELP PLEASE: Engine Idle Problem

even if you disconnected them from your intake and whacked a small filter on the ends, you'd be creating another problem - unmetered (hotter) air entering the engine.

it's all part of a circuit where 1 and 13 are under vacuum and suck the ccv gases in to be burnt up. 6 and 14 are the fresh air supply lines, to replace the ccv gases, oil vapour etc sucked out via 1 and 13. ever wondered why you dont see oily gunk in your intake pipes?
Sorry, you're wrong. I've had breather filters on my valve covers for over four years w/thousands of miles. No idle issues and no "oil residue" in my engine bay. I don't want oil residue in my intake pipes and oil/dirt/gunk making my throttle bodies stick.
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