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Catch can or breather?

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Old 08-05-2010, 05:17 PM
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Default Catch can or breather?
I am currently running a catch can from my valve cover to my pcv. i have aftermarket vavle covers so this is the only thing bleeding off pressure from my crank. My engine builder told me to just run a breather and block off the pcv on the intake. Any opions on this?
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Old 08-05-2010, 05:25 PM
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I have right now an ls6 valley cover w/ pcv running to the intake with a catch can in between and a line running from the passenger valve cover to the throttle body. This seems to be the recommended setup on this board..
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Old 08-05-2010, 05:28 PM
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Ill post a pic up here in a few hours of what i have going on.
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Old 08-05-2010, 05:29 PM
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vacuum pump.you can convert the air pump .
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Old 08-05-2010, 05:53 PM
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breathers are not reccommended. the catch can helps get rid of harmful gasses that shorten engine life. breathers don't.
Last edited by brian_rs/ss; 08-05-2010 at 07:04 PM.
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Old 08-05-2010, 06:40 PM
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I've been running two Metco breathers for a while now and no issues
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Old 08-06-2010, 03:41 PM
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bump! pics would be great of any setups
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Old 08-10-2010, 01:51 PM
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My two Metco's


https://ls1tech.com/forums/13057077-post2.html
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Old 08-15-2010, 05:32 AM
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Originally Posted by brian_rs/ss
breathers are not reccommended. the catch can helps get rid of harmful gasses that shorten engine life. breathers don't.
Why are breathers not recommended? What do you think about the Mike Norris catch can setup?
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