FI, what to do about PCV system
That kit looks nice but that price is crazy. Has anyone thought of using the exhaust to pull out crank case vapors? Ive read alittle about it and I think im going to give it a try. Basically you install a slash cut pipe onto your down pipe and at the right angle this will create a vacum. You attach this to you valve covers. There is a thread someone on hear that has pictures. Some guy tried this on a honda and was reading 8inchs at wot.
Thread Starter
TECH Apprentice
Joined: Dec 2003
Posts: 319
Likes: 0
From: Tennessee
A vac pump setup is ideal and will help seal the rings.
If your on a budget, a nice way to do it would be have a -12 weld on installed on a valve cover and ran down to a catch can mounted on the frame rail. Moroso/allstar sells these breather catch cans that have a -12an port. Looks good and works great.
If your on a budget, a nice way to do it would be have a -12 weld on installed on a valve cover and ran down to a catch can mounted on the frame rail. Moroso/allstar sells these breather catch cans that have a -12an port. Looks good and works great.
-Jake, I found the Moroso cans with the -12 ports. I was considering this anyway and will try it based on your advice. Is one -12 line running from one valve cover enough or do I need a line coming from each valve cover? Of course, installation would be cleaner and easier with only one line, if it is sufficient. Sometimes less is more. Also is there a need to put a check valve in this line?
i think Josh@KYTP was doing a group purchase on a nice catch can and i believe it had -12an ports. might be able to pick up something nice at a good price and help out the sponsors
tap both valve covers with a -12 an fitting...run both -12 hoses to a -12 moroso vented catch can.
ls6 valley to check valve to intake manifold.
cap off the rest of the plugs on the valve covers and put the stock oil cap back on.
call it a day.
ls6 valley to check valve to intake manifold.
cap off the rest of the plugs on the valve covers and put the stock oil cap back on.
call it a day.
Last edited by MECHAM; Mar 21, 2008 at 11:09 AM.
Teching In
Joined: Feb 2008
Posts: 18
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That kit looks nice but that price is crazy. Has anyone thought of using the exhaust to pull out crank case vapors? Ive read alittle about it and I think im going to give it a try. Basically you install a slash cut pipe onto your down pipe and at the right angle this will create a vacum. You attach this to you valve covers. There is a thread someone on hear that has pictures. Some guy tried this on a honda and was reading 8inchs at wot.
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TECH Regular
Joined: Sep 2007
Posts: 416
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From: Claremont, ON Canada
Would you use a check valve or a PVC ? If a Check valve, do you have a link to one? And I assume you put it so that air can go from the valley cover to the IM?
goes... ls6 --> check valve |--> intake manifold
Good info, I was still unsure in what to do for routing my catchcan/pcv but I like this. Sounds simple as hell and bet it works great at both idle/vaccum and in boost. Now to find a nice checkvalve 
