Will this layout for PCV on a boosted engine work? Picture within
Thread Starter
TECH Enthusiast
iTrader: (13)
Joined: Aug 2006
Posts: 591
Likes: 0
From: Pensacola, FL
Will this layout for PCV on a boosted engine work? Picture within Im trying to run a 4 port catch can system on my tc78 sts ls1 383. Here is the idea for the plan. I have 4 questions.
1.) Where I put the question mark do not know whether to go to TB or to where the stock pcv connected to the the intake under the TB
2.) Do I need to add a breather as all other ports on valve cover will be sealed. So only what you see is what Im using, Ill be capping off the rest.
3.) Will it work? or what changes need to be made..
4.) Do I need a check valve going to valley cover?
See Photo Below sorry for lame drawing skills..
1.) Where I put the question mark do not know whether to go to TB or to where the stock pcv connected to the the intake under the TB
2.) Do I need to add a breather as all other ports on valve cover will be sealed. So only what you see is what Im using, Ill be capping off the rest.
3.) Will it work? or what changes need to be made..
4.) Do I need a check valve going to valley cover?
See Photo Below sorry for lame drawing skills..
Last edited by vipvegas; Aug 29, 2009 at 04:47 PM.
i prefer no pcv at all. just a vent. sucks getting oil in the turbo/intercooler/intake duct/combustion chamber. i tried the catch can route and it did catch some oil but let plenty threw too.
but to answer your question. i wouldn't use the port on the tb at all, just plug it.
then come off of one or both valve covers if you want into the catch can. then catch can to turbo inlet.
depending on the size of your tubing, fittings, catch can and how much boost you want to run. you might want to put in a breather.
but to answer your question. i wouldn't use the port on the tb at all, just plug it.
then come off of one or both valve covers if you want into the catch can. then catch can to turbo inlet.
depending on the size of your tubing, fittings, catch can and how much boost you want to run. you might want to put in a breather.
yes, and you wont need any check valves. that is how i have done it in the past.
looking at your plan with the check valves might work well. under vacume it would pull the vapors into the engine. under boost into the turbo. hmmm.
or just say screw it all and run a 1/2 line from your valve cover down near the ground, just to keep any vapors from making a mess under the hood.
i see it is warm where you live. here the catch can will fill up with water quickly in the colder weather.
looking at your plan with the check valves might work well. under vacume it would pull the vapors into the engine. under boost into the turbo. hmmm.
or just say screw it all and run a 1/2 line from your valve cover down near the ground, just to keep any vapors from making a mess under the hood.
i see it is warm where you live. here the catch can will fill up with water quickly in the colder weather.
if your talking some kind of emisions then yeah, not very green.
my truck with a built 408 and 20psi did saturate the filter and made a mess after awhile.
Trending Topics
Thread Starter
TECH Enthusiast
iTrader: (13)
Joined: Aug 2006
Posts: 591
Likes: 0
From: Pensacola, FL
I do like how I have the pcv running back to intake to. Like you said with check valves in correct place it will work will in boost or not and supply perfect vacuum. At least I think thats the way I planned it. In the works of getting the valley cover thats vented cant do anything but help. When I had stock sts with there pcv I was getting minimal blowby and blowing off valve cover gaskets and oil cap. So now that im rebuilding I figured this would be a good addition.
LS1 Tech Stories
The Best V8 Stories One Small Block at Time
6 Common C5 Corvette Failures and What's Involved In Repairing Them
Pouria Savadkouei
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph
Verdad Gallardo
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked
Pouria Savadkouei
Top 10 Most Powerful Chevy Trucks Ever Made!
Hennessey's New Supercharged Silverado ZR2 Has 700 HP
Verdad Gallardo
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes
Verdad Gallardo
Awesome K5 Blazer Restomod Comes With C7 Corvette Power
Verdad Gallardo
10 Camaros You Should Never Buy
10 LS Engine Myths That Refuse to Die
Verdad Gallardo i saw your post on check valves there are some here to check out >> http://www.mcmaster.com/#check-valves/=3elrcl
something to think about is i got some rated at 1lb cracking pressure. i guess 1lb is a lot. i couldn't blow threw it either way.
something to think about is i got some rated at 1lb cracking pressure. i guess 1lb is a lot. i couldn't blow threw it either way.
i saw your post on check valves there are some here to check out >> http://www.mcmaster.com/#check-valves/=3elrcl
something to think about is i got some rated at 1lb cracking pressure. i guess 1lb is a lot. i couldn't blow threw it either way.
something to think about is i got some rated at 1lb cracking pressure. i guess 1lb is a lot. i couldn't blow threw it either way.
With my procharged setup I run breathers on both valve covers and a catch can off the ls6 valley cover. I do not have any line going to my procharger because of all that crap gettin in there.
