ly6/chevelle pcv plumbing
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From: oklahoma
ly6/chevelle pcv plumbing 
Ive installed an 08 ly6 in a 68 chevelle using mast m90 controller tuned as speed density. Drivers pcv line on rear of valve cover is plumbed to top of intake as factory, what about the incoming line on front of passenger valve cover? Small filter, plug it?? No MAF or intake tube just a filter on the throttle body currently. Whats correct????? you need to hook that line into the intake if not it will pull un-metered air just like a vacuum leak I know thats for regular setup. I'm not sure if it works like that for speed density
this has every pcv guide youd need a couple pages in
https://ls1tech.com/forums/generatio...outing-ok.html
https://ls1tech.com/forums/generatio...outing-ok.html
Thread Starter
Teching In
Joined: Aug 2009
Posts: 43
Likes: 0
From: oklahoma
thanks for the link: From my interpretation of the info my drivers side rear port of valve cover connects to the top of intake per oem. The incoming air port on passenger valve cover should attach to the throttle body or air inlet tube post MAF(which I dont use-speed density). The factory throttle body has no provision for connecting to the valve cover port. Any thoughts?
I run speed density on my L92 with VVT and I have mine connected to a small filter and hidden under the fuel rail cover. Works fine for me.
Last edited by sierrac3_s2000; Nov 1, 2010 at 08:38 PM.
Teching In
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this has every pcv guide youd need a couple pages in
https://ls1tech.com/forums/generatio...outing-ok.html
https://ls1tech.com/forums/generatio...outing-ok.html
thanks for the link: From my interpretation of the info my drivers side rear port of valve cover connects to the top of intake per oem. The incoming air port on passenger valve cover should attach to the throttle body or air inlet tube post MAF(which I dont use-speed density). The factory throttle body has no provision for connecting to the valve cover port. Any thoughts?
@ daves restoration, I havent looked at them specifically but I just assumed my ls2/3 setup would work like an ls6 (which is what I had on my old build, conveniently enough). That said, idk where the valve would go if you dont see one on the factory setup
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Teching In
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The only thing I see is the hose from the rear of the driver's valve cover to the top of the intake, and the hose on the passenger front valve cover that goes to the intake bellows. No lines from the valley pan or anywhere else that I see.
Thanks
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