LT1-LT4 Modifications 1993-97 Gen II Small Block V8

Deleting PCV System

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Old Sep 29, 2009 | 09:55 AM
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myltwon's Avatar
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Default Deleting PCV System

Well I just finished reinstalling my intake (oil leak) and realized that the inside of my brand new intake (was completely clean a few months ago) was pretty well oil soaked along with the tb ccv hose inlet. The back intake ports on the cylinder head along with the intake manifold's back 4 port had plenty of oil residue.

I'm looking to delete the pcv system to see if that helps cure my problem and was wondering what is removed, how much is blocked off, and what breathers to run.

thanks
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Old Sep 29, 2009 | 10:58 AM
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https://ls1tech.com/forums/general-m...xperiment.html
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Old Sep 29, 2009 | 11:09 AM
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I think that guy had a unique problem (burning a quart of oil every two weeks, lol). Plus, it's not an LT1. I know LSx have their own set of issues. LT1 folk seem to have had success with a catch can.
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Old Sep 29, 2009 | 11:22 AM
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I'm interested in seeing what others are doing as well.
I'm losing a lot of oil though my PCV and I'd really prefer to see it go somewhere other than my intake.
I run a catch-can, but it's not going to get 100% of the oil.

I've read several times that people run mechanical vacuum pumps to pull gases from the crankcase (and net a few HP as well).
I'm torn between that solution and simply eliminating the vent system altogether and using a breather filter.
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Old Sep 29, 2009 | 12:18 PM
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I'd like to know as well. I can't tell which is leaking worse; my intake or pcv system, haha
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