View Poll Results: PCV Options
Leave it alone.
15
11.11%
Add a catch can.
47
34.81%
Change to a truck PCV valve.
9
6.67%
Remove the entire system and run a breather.
64
47.41%
Voters: 135. You may not vote on this poll
What to do with PCV system?
TECH Regular
Joined: Jan 2004
Posts: 496
Likes: 0
From: GARDEN GROVE, CA
I have to change my results on doing what Joecar did. I still have oil being sucked into the intake. I pulled the line off the intake and oil was dripping off. Then I unscrewed the oil cap and oil was dripping off the cap. When summer comes around I might have to delete the pcv to avoid lot of pinging.
TECH Resident
Joined: Apr 2005
Posts: 814
Likes: 0
From: NJ
well ive sense added a craftsman catch can and its working well no diffrence in the ay the car runs but it sran fine before but wow is it catching a ton of oil. so im happy its just not in the intake. i may still try breathers this summer i dunno i dont see how it would build up and not vent pressure with an open hole basically only restricted by a light filter(breather) it can only let off as much pressure as it builds i supose
Thread Starter
TECH Regular
Joined: Aug 2005
Posts: 445
Likes: 0
From: Tampa Bay
I drove my car to Virgina a few weeks ago, about 1000 miles, and I used an entire quart of oil (.33 each fill up). I usually drive my car about 1000 miles a month, so the oil consumption was not so evident. I looked for a quick fix to at least get me back to FL without going through another quart so quickly, and I tried this:
https://ls1tech.com/forums/showpost....3&postcount=42
https://ls1tech.com/forums/showpost....3&postcount=43
My consumption dropped to less than .25 of a quart on the drive back to FL. I was impressed, plus it was cheap and easy!
https://ls1tech.com/forums/showpost....3&postcount=42
https://ls1tech.com/forums/showpost....3&postcount=43
My consumption dropped to less than .25 of a quart on the drive back to FL. I was impressed, plus it was cheap and easy!
so for those of you that have taken off your PCV and just added a breather filter to the passenger side, have you had any problems at all with it? Im really thinking about doing this, but seems that everyone has a different opinion. Id like to hear more from people that have done it.
TECH Regular
Joined: Jan 2004
Posts: 496
Likes: 0
From: GARDEN GROVE, CA
I'm trying a higher weight oil now with the Joecar mod. I just changed my oil with 4.5 quarts 0w40 and 1 15w50. So far when checking the oil cap it's dry. Only time will tell because every other thing I tried to stop oil vapor would work for a couple hundred miles and then not work.
TECH Senior Member
Joined: Apr 2002
Posts: 6,080
Likes: 17
From: So.Cal.
Originally Posted by rich Z
I'm trying a higher weight oil now with the Joecar mod. I just changed my oil with 4.5 quarts 0w40 and 1 15w50. So far when checking the oil cap it's dry. Only time will tell because every other thing I tried to stop oil vapor would work for a couple hundred miles and then not work.
If you can find a way to put a baffle on the underside of the oil cap and get it to stay attached without dropping onto the head, then let me know; I think that may be the next step in the "PCV valve in oil cap" mod (i.e. cap with baffle so path to PCV valve is not direct).
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Man, Ive read through all 6 pages of this & there is defiantly some good info in here. So anohter vote for a sticky.
Now, Ive noticed that the same question is still being asked/debated over & over again. "Anyone try a sigle breather & caping the rest?" Maybe not word for word but you get the idea. I had this setup on my stock motor for about 10,000mi without any problem. After I spun a bearing & installed the 408ci I switched back to the stock PCV system mainly because I thought maybe that the oil consumption I had prior to the new motor was from my stocker being worn out. But it wasnt.
Basically what I did was remove the PCV lines from the back of the drivers/pass side head & intake. I capped off the intake where the PCV line connected just behind/below the TB & the pass side valve cover on the rear where the line also connected. You can buy little rubber caps from advance auto parts.
On the drivers side rear well I took a rubber insert used on test tubes & just plugged up the hole. ( sorry I work at a Lab)
I left the line that goes from the front of the pass side valve cover to the TB, mainly for fresh air.
Now on the oil filler neck, at a local speed shot they had K&N one way breathers. $14 They would allow air out, but not back in. Make sense? Any breather want work, the car will not idle it you stick a just any breather on the oil filler neck. (accidently grabbed the wrong one first)
Thats all I had done. No problems, no oil in the intake runners.
Let me know if anythinks this isnt correct or will cause problems.
Now, Ive noticed that the same question is still being asked/debated over & over again. "Anyone try a sigle breather & caping the rest?" Maybe not word for word but you get the idea. I had this setup on my stock motor for about 10,000mi without any problem. After I spun a bearing & installed the 408ci I switched back to the stock PCV system mainly because I thought maybe that the oil consumption I had prior to the new motor was from my stocker being worn out. But it wasnt.
Basically what I did was remove the PCV lines from the back of the drivers/pass side head & intake. I capped off the intake where the PCV line connected just behind/below the TB & the pass side valve cover on the rear where the line also connected. You can buy little rubber caps from advance auto parts.
On the drivers side rear well I took a rubber insert used on test tubes & just plugged up the hole. ( sorry I work at a Lab)
I left the line that goes from the front of the pass side valve cover to the TB, mainly for fresh air.
Now on the oil filler neck, at a local speed shot they had K&N one way breathers. $14 They would allow air out, but not back in. Make sense? Any breather want work, the car will not idle it you stick a just any breather on the oil filler neck. (accidently grabbed the wrong one first)
Thats all I had done. No problems, no oil in the intake runners.
Let me know if anythinks this isnt correct or will cause problems.
I have a stock motor just lid and catback and im thinking about deleting the pcv and just running a breather, i have a small hole in the hose that connects to the intake anyway. Will this have any negative effects on my motor in the long run, or should i just go with the LS6 PCV.
Originally Posted by Z'mnypit
Man, Ive read through all 6 pages of this & there is defiantly some good info in here. So anohter vote for a sticky.
Now, Ive noticed that the same question is still being asked/debated over & over again. "Anyone try a sigle breather & caping the rest?" Maybe not word for word but you get the idea. I had this setup on my stock motor for about 10,000mi without any problem. After I spun a bearing & installed the 408ci I switched back to the stock PCV system mainly because I thought maybe that the oil consumption I had prior to the new motor was from my stocker being worn out. But it wasnt.
Basically what I did was remove the PCV lines from the back of the drivers/pass side head & intake. I capped off the intake where the PCV line connected just behind/below the TB & the pass side valve cover on the rear where the line also connected. You can buy little rubber caps from advance auto parts.
On the drivers side rear well I took a rubber insert used on test tubes & just plugged up the hole. ( sorry I work at a Lab)
I left the line that goes from the front of the pass side valve cover to the TB, mainly for fresh air.
Now on the oil filler neck, at a local speed shot they had K&N one way breathers. $14 They would allow air out, but not back in. Make sense? Any breather want work, the car will not idle it you stick a just any breather on the oil filler neck. (accidently grabbed the wrong one first)
Thats all I had done. No problems, no oil in the intake runners.
Let me know if anythinks this isnt correct or will cause problems.
Now, Ive noticed that the same question is still being asked/debated over & over again. "Anyone try a sigle breather & caping the rest?" Maybe not word for word but you get the idea. I had this setup on my stock motor for about 10,000mi without any problem. After I spun a bearing & installed the 408ci I switched back to the stock PCV system mainly because I thought maybe that the oil consumption I had prior to the new motor was from my stocker being worn out. But it wasnt.
Basically what I did was remove the PCV lines from the back of the drivers/pass side head & intake. I capped off the intake where the PCV line connected just behind/below the TB & the pass side valve cover on the rear where the line also connected. You can buy little rubber caps from advance auto parts.
On the drivers side rear well I took a rubber insert used on test tubes & just plugged up the hole. ( sorry I work at a Lab)
I left the line that goes from the front of the pass side valve cover to the TB, mainly for fresh air.
Now on the oil filler neck, at a local speed shot they had K&N one way breathers. $14 They would allow air out, but not back in. Make sense? Any breather want work, the car will not idle it you stick a just any breather on the oil filler neck. (accidently grabbed the wrong one first)
Thats all I had done. No problems, no oil in the intake runners.
Let me know if anythinks this isnt correct or will cause problems.
No No No No !!!!!
Common Guys Read The Previous Threads Theres Like 200000000000 Of Them
In This Same Discussion A While Back A Few Very Smart People Finally Were Found That Let Us All Know That Removing The Pcv System Will Not Allow For Your Engine To Be Proper Ventlated And Your Oil Will Start Asorbing Motisture
The Pcv Delete Is Only Ment For Race Cars But If You Don't Wanna Change Your Oil Every 1000 Miles Don't Do It
Again I Suggest The Ls6 Pcv Conversion It Aint That Hard And Its Not Really Expensive And For The Best Part It Works 100% No More Goofy Catch Cans Or Breathers
Common Guys Read The Previous Threads Theres Like 200000000000 Of Them
In This Same Discussion A While Back A Few Very Smart People Finally Were Found That Let Us All Know That Removing The Pcv System Will Not Allow For Your Engine To Be Proper Ventlated And Your Oil Will Start Asorbing Motisture
The Pcv Delete Is Only Ment For Race Cars But If You Don't Wanna Change Your Oil Every 1000 Miles Don't Do It
Again I Suggest The Ls6 Pcv Conversion It Aint That Hard And Its Not Really Expensive And For The Best Part It Works 100% No More Goofy Catch Cans Or Breathers
https://ls1tech.com/forums/showthrea...hlight=PCV+FIX
HERES THE SAME DISCUSSION BUT LAST WEEK READ BOTTOM OF PAGE ONE AND PAGE 2
HERES THE SAME DISCUSSION BUT LAST WEEK READ BOTTOM OF PAGE ONE AND PAGE 2
TECH Enthusiast
Joined: Sep 2003
Posts: 702
Likes: 0
From: Lakeland, Fl
Originally Posted by Jpr5690
https://ls1tech.com/forums/showthrea...hlight=PCV+FIX
HERES THE SAME DISCUSSION BUT LAST WEEK READ BOTTOM OF PAGE ONE AND PAGE 2
HERES THE SAME DISCUSSION BUT LAST WEEK READ BOTTOM OF PAGE ONE AND PAGE 2
Originally Posted by pushinfreight
So breathers on the rocker covers will allow for unmetered air into the system? Would seem like with a breather, LS6 valley cover and catch can this would allow for the best combo to keep the intake dry and crank case pressure controlled.
Originally Posted by Jpr5690
you wont need a breather if you have a ls6 valley cover
The catchcan PCV stuff is all fine and dandy as long as it can keep up. My 120k mile heap had so much blowby it was shooting oil out of the PCV and the fresh air tube even WITH a catchcan.
I have a breather now and no PCV system and it seems to run 10x better than before. I revamped the whole PCV system before the FAST 90 went on and it still got coated in oil, so I said to hell with it.
After the new motor goes in (soon), I'll probably change the oil every 1k miles anyway and it will be retired from it's daily driver duties.
