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Best way to vent crankcase

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Old 06-04-2015, 04:29 PM
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Default Best way to vent crankcase

Hey all! I am deleting my PCV on my turbo setup and I decided I just want to vent the crankcase into a vented catch can. Would running a hose off the stock valve cover fittings and off the valley cover (I have a LS3 valley cover) to the vented catch can be enough to adequately evacuate pressures in the crankcase or will those fittings be to small?
Old 06-06-2015, 07:55 PM
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mighty mouse catch can
Old 06-06-2015, 07:57 PM
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rx catch can....I did the monster rx can

https://www.performancetrucks.net/fo...nstall-537579/
Old 06-06-2015, 08:06 PM
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i would run valve cover to catch can then to exhaust with a pan evap set up.
Old 06-06-2015, 10:44 PM
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Pretty similar to how mine used to be set up with the D1sc. I ran a line off each valve cover (I think it was small 3/8" line) to a 1 quart catch can. For the most part it worked, but it was a little inadequate at times especially when I turned the boost up.

I had to do the dipstick zip tie mod to keep the dip stick in it.
Old 06-06-2015, 11:22 PM
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ive got a line going.from my.turbo air filter tube to the passenger valve cover. On the driver side, a line goes from the valve cover to a MM catch can (which vents under boost) and is hooked up to the vacuum port on the intake. I do have the pcv valve drilled out.

Completely stock functioning pcv system which also pulls vacuum on the crankcase under boost.
Old 06-07-2015, 09:52 AM
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bungs on each valve cover to each catch can for big power setups

laterly -6 line off each valve cover using the existing ports, the valley cover all tie into a 3 way air manifold then into a single catch can
Old 06-07-2015, 02:52 PM
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Originally Posted by George C....
bungs on each valve cover to each catch can for big power setups

laterly -6 line off each valve cover using the existing ports, the valley cover all tie into a 3 way air manifold then into a single catch can
Cool! Think thats the way I want to go. Thinking about drilling out the PCV orifice on the driver side too as well.
Old 06-07-2015, 03:29 PM
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Lines ran down under the truck vented to atmosphere
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