Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums - Camaro5.com
 
Classic Design Concepts
Go Back   Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums - Camaro5.com > Engine | Drivetrain | Powertrain Technical Discussions > Camaro V8 LS3 / L99 Engine, Exhaust, and Bolt-Ons

Camaro V8 LS3 / L99 Engine, Exhaust, and Bolt-Ons Bolt-Ons | Intakes | Exhaust

Reply
 
Thread Tools
Old 01-01-2012, 04:55 PM   #1
PAUL SS
The Mark of Excellence
 
PAUL SS's Avatar
 
Drives: 2010 ABM 1SS RS LS3
Join Date: Jan 2009
Location: Smallest State in the Union
Posts: 8,407
Catch Can plumbing question

See the hose that runs from the passenger side valve cover to the intake tube just in front of the throttle body?

Could that or should that be also run through the catch can? It seems to me that this hose will be sucking oil mist and dropping right into the airflow and into the intake. Is it possible to do this and would it reduce oil in the intake?
__________________
BMR, CAI, DynoMax, Elite Eng., Hurst, Jannetty, Clear Image Headers & Hi Flow cats, Jet Hot, LSR, TSW, Vredestein
PAUL SS is offline   Reply With Quote
Old 01-01-2012, 05:18 PM   #2
bowtie98607
 
bowtie98607's Avatar
 
Drives: 12 SS2RS, 73 RS/TypeLT, 68 Vette
Join Date: Nov 2011
Location: Vancouver, Washington
Posts: 184
If you have the optional breather. Then that hose is blocked off.
__________________
bowtie98607 is offline   Reply With Quote
Old 01-01-2012, 09:27 PM   #3
PAUL SS
The Mark of Excellence
 
PAUL SS's Avatar
 
Drives: 2010 ABM 1SS RS LS3
Join Date: Jan 2009
Location: Smallest State in the Union
Posts: 8,407
Quote:
Originally Posted by bowtie98607 View Post
If you have the optional breather. Then that hose is blocked off.
I wasn't planning on using an optional breather.
__________________
BMR, CAI, DynoMax, Elite Eng., Hurst, Jannetty, Clear Image Headers & Hi Flow cats, Jet Hot, LSR, TSW, Vredestein
PAUL SS is offline   Reply With Quote
Old 01-01-2012, 09:31 PM   #4
KEEP RT
Wonderfully Awful Idea
 
KEEP RT's Avatar
 
Drives: 2010 2SS/RS
Join Date: Aug 2010
Location: Battle Ground, WA
Posts: 1,778
It's the looped hose down low behind your throttle body control about 4" long if it were straight. I'm assuming it is on the lS3. Check the DIY section. packed with photos.
__________________
KEEP RT is offline   Reply With Quote
Old 01-01-2012, 09:36 PM   #5
PAUL SS
The Mark of Excellence
 
PAUL SS's Avatar
 
Drives: 2010 ABM 1SS RS LS3
Join Date: Jan 2009
Location: Smallest State in the Union
Posts: 8,407
Quote:
Originally Posted by KEEP RT View Post
It's the looped hose down low behind your throttle body control about 4" long if it were straight. I'm assuming it is on the lS3. Check the DIY section. packed with photos.
Yes, that is where you connect your catch can but I think there is possibly more oil being ingested through the valve cover line that connects to the air tube.
__________________
BMR, CAI, DynoMax, Elite Eng., Hurst, Jannetty, Clear Image Headers & Hi Flow cats, Jet Hot, LSR, TSW, Vredestein
PAUL SS is offline   Reply With Quote
Old 01-01-2012, 09:47 PM   #6
13 ZL1
 
13 ZL1's Avatar
 
Drives: 2013 IOM ZL1
Join Date: Nov 2009
Location: Manteca CA
Posts: 689
That line is not connected to the catch can. That hose is to allow air in. If you want to prevent oil going into the intake from this line then you need to add the breather. The catch can is put in the line that goes from the valley cover to the intake on the LS3. It is behind and below the hose you have outlined. The hose is U shaped and about 4 inches long and has quick disconnects on it. You should check out SC2150's threads.
13 ZL1 is offline   Reply With Quote
Old 01-02-2012, 09:01 AM   #7
PAUL SS
The Mark of Excellence
 
PAUL SS's Avatar
 
Drives: 2010 ABM 1SS RS LS3
Join Date: Jan 2009
Location: Smallest State in the Union
Posts: 8,407
Quote:
Originally Posted by Orange2SSRS View Post
That line is not connected to the catch can. That hose is to allow air in. If you want to prevent oil going into the intake from this line then you need to add the breather. The catch can is put in the line that goes from the valley cover to the intake on the LS3. It is behind and below the hose you have outlined. The hose is U shaped and about 4 inches long and has quick disconnects on it. You should check out SC2150's threads.
I understand that line is not connected to the catch can and I do know which lines are. My question is should that line also be connected to the can?

The end of that hose is at the front of the throttle body which would be in a vacuum most of the time and sucking whatever is at the other end. Seeing how it is connected to a valve cover and is an oily enviroment wouldn't you think that oil would be ingested through it?

If we install a catch can to keep oil out of the intake, I want to keep all oil out.
__________________
BMR, CAI, DynoMax, Elite Eng., Hurst, Jannetty, Clear Image Headers & Hi Flow cats, Jet Hot, LSR, TSW, Vredestein
PAUL SS is offline   Reply With Quote
Old 01-02-2012, 10:13 AM   #8
13 ZL1
 
13 ZL1's Avatar
 
Drives: 2013 IOM ZL1
Join Date: Nov 2009
Location: Manteca CA
Posts: 689
The simple answer is no. It is possible to pull oil into the intake from this hose. The solution is to get the breather.
13 ZL1 is offline   Reply With Quote
Old 01-02-2012, 12:47 PM   #9
SC2150
Account Suspended
 
Drives: 2012 Camaro RS, RX supercharged
Join Date: Dec 2009
Location: Bradenton, FL
Posts: 6,080
Orange is correct.

Proper crankcase evacuation requires not only a evacuation oute and the suction to allow it, but allso there must be a filtered fresh make up air source and that is what that line is. The problem is at WOT there will be some oil ingestion through reversion or back-flow when there is almost no intake manifold vacuum present so the crankcase pressure wants to go somewhere. If you use a standar open breather then you introduce excess unmetered air to the system and your tune goes crazy as the ECU tries to compensate, so the RX breather kit has a flow controlling valve in it calibrated for the size of the motor & the application.

If your car is not driven hard, then the breather may not be a must like it is on a big build or FI application. To see if it does, simply remove that tube and feel for any oil residue between the inlet fitting and the throttle body. If you have oil, the breather will eliminate it.

Thanks Orange for the tech help!
SC2150 is offline   Reply With Quote
Old 01-02-2012, 01:05 PM   #10
PAUL SS
The Mark of Excellence
 
PAUL SS's Avatar
 
Drives: 2010 ABM 1SS RS LS3
Join Date: Jan 2009
Location: Smallest State in the Union
Posts: 8,407
Thanks everybody
__________________
BMR, CAI, DynoMax, Elite Eng., Hurst, Jannetty, Clear Image Headers & Hi Flow cats, Jet Hot, LSR, TSW, Vredestein
PAUL SS is offline   Reply With Quote
Old 01-02-2012, 04:10 PM   #11
IndeedSS1


 
IndeedSS1's Avatar
 
Drives: 2010 Camaro SS LS3
Join Date: Sep 2010
Location: Eastern MO
Posts: 3,804
Quote:
Originally Posted by PAUL SS View Post
Thanks everybody
I have 28k miles on my car and have never seen oil in that hose.
__________________


She is only memory now.
IndeedSS1 is offline   Reply With Quote
Old 01-02-2012, 04:13 PM   #12
SC2150
Account Suspended
 
Drives: 2012 Camaro RS, RX supercharged
Join Date: Dec 2009
Location: Bradenton, FL
Posts: 6,080
You have a good sealed motor then. No need for a breather kit if your not getting oil in the front of the TB.
SC2150 is offline   Reply With Quote
Old 01-02-2012, 04:19 PM   #13
IndeedSS1


 
IndeedSS1's Avatar
 
Drives: 2010 Camaro SS LS3
Join Date: Sep 2010
Location: Eastern MO
Posts: 3,804
Quote:
Originally Posted by SC2150 View Post
You have a good sealed motor then. No need for a breather kit if your not getting oil in the front of the TB.
It sure was having a lot of oil being caught in the catch can on the dirty side though. It may only be half well-sealed.
__________________


She is only memory now.
IndeedSS1 is offline   Reply With Quote
Old 01-02-2012, 04:58 PM   #14
13 ZL1
 
13 ZL1's Avatar
 
Drives: 2013 IOM ZL1
Join Date: Nov 2009
Location: Manteca CA
Posts: 689
Quote:
Originally Posted by IndeedSS1 View Post
It sure was having a lot of oil being caught in the catch can on the dirty side though. It may only be half well-sealed.

Indeed, I remember a while back you had a filter inline with the output of your catch can. Can you send me a link to that thread?
13 ZL1 is offline   Reply With Quote
Old 01-02-2012, 06:52 PM   #15
IndeedSS1


 
IndeedSS1's Avatar
 
Drives: 2010 Camaro SS LS3
Join Date: Sep 2010
Location: Eastern MO
Posts: 3,804
Quote:
Originally Posted by Orange2SSRS View Post
Indeed, I remember a while back you had a filter inline with the output of your catch can. Can you send me a link to that thread?
I've not been on here in a very long time. Let me see if I can come up with something for you.

Edit: was it this? http://www.camaro5.com/forums/showpo...96&postcount=2
__________________


She is only memory now.
IndeedSS1 is offline   Reply With Quote
Old 01-02-2012, 07:26 PM   #16
13 ZL1
 
13 ZL1's Avatar
 
Drives: 2013 IOM ZL1
Join Date: Nov 2009
Location: Manteca CA
Posts: 689
That's it, where did you get the filter?
13 ZL1 is offline   Reply With Quote
Old 01-03-2012, 03:11 AM   #17
trnsxck
 
trnsxck's Avatar
 
Drives: flintstone mobile
Join Date: Dec 2011
Location: Dark area of your mind
Posts: 80
That looks due to the cold air intake ? That is supposed to be the cold air return looks like... Put a check valve in there to prevent reversion

there needs to be flow in one direction out through the valley pan and in through the valve cover is what GM does. You dont need a breather, you just need a proper check valve on what you already have.. or yes a filtered breather on the valve cover will do the same thing but a check valve is like $ 4.00
trnsxck is offline   Reply With Quote
Old 01-03-2012, 05:25 PM   #18
IndeedSS1


 
IndeedSS1's Avatar
 
Drives: 2010 Camaro SS LS3
Join Date: Sep 2010
Location: Eastern MO
Posts: 3,804
Quote:
Originally Posted by Orange2SSRS View Post
That's it, where did you get the filter?
I got it at AutoZone. It's a Spectre brand inline gas filter. I took out the actual filter media which is a white nylon gauze looking cylinder.
__________________


She is only memory now.
IndeedSS1 is offline   Reply With Quote
 
Reply

Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
RX PCV Oil Catch Cans and Breathers| In stock | Free Shipping! JDP Motorsports V8 Bolt-Ons & Tunes 46 04-29-2013 03:43 PM
RX PCV Oil Catch Cans and Breathers| In stock | Free Shipping! JDP Motorsports V6 Bolt-Ons & Tunes 116 04-29-2013 11:16 AM
Mike Norris Motorsports Billet PCV Oil Catch Can Availability Mike Norris Camaro V8 LS3 / L99 Engine, Exhaust, and Bolt-Ons 8 12-04-2011 07:41 AM
Oil Catch Cans for the V6 TexasCamaro5 Camaro V6 LLT Engine, Exhaust, and Bolt-Ons 3 03-13-2011 12:11 AM


All times are GMT -5. The time now is 03:11 PM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.