How is your PCV system plumbed up??
Thread Starter
Melting Slicks
Joined: Apr 2001
Posts: 3,034
Likes: 125
From: NY-South Florida
How is your PCV system plumbed up??
I just installed a "catch can" on my stroked C5. During the install I starting thinking about the rest of the PCV system. The motor has the LS6 valley pan which loops the back to the TB (or in this case the port of the LSX intake right behind the TB). In this loop is the PCV valve.
The drivers side rear valve cover port is plugged and the passenger side valve cover line that used to go to the stock TB is just hanging there.
What is the best way to route this system with the new catch can and LS6 valley pan??
The drivers side rear valve cover port is plugged and the passenger side valve cover line that used to go to the stock TB is just hanging there.
What is the best way to route this system with the new catch can and LS6 valley pan??
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Joined: Sep 2003
Posts: 3,558
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From: Cape Coral FL
I have mine set running the port of the LS valley cover to the top of the catch can, and the other port on the catch can goes to the PCV valve that goes to the mainfiold. The port on the front of the passenger side valve cover goes to a grommet that has a short plastic tube (I used a PCV fitting from another car) and I have the grommet fitted into a hole in the side of my airbridge with the plastic tube inserted there. The idea is you have higher pressure in front of the throttle body blade and lower pressure behind it. You want the pressure differential to drive the PCV.
Le Mans Master
Joined: Sep 2003
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From: Farmington CT
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Team Owner
Joined: May 2004
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From: SoCal
Originally Posted by ArKay99
I have mine set running the port of the LS valley cover to the top of the catch can, and the other port on the catch can goes to the PCV valve that goes to the mainfiold. The port on the front of the passenger side valve cover goes to a grommet that has a short plastic tube (I used a PCV fitting from another car) and I have the grommet fitted into a hole in the side of my airbridge with the plastic tube inserted there. The idea is you have higher pressure in front of the throttle body blade and lower pressure behind it. You want the pressure differential to drive the PCV.
I have the same setup as you. Except my 2004 did not come with PCV valve. I don't really understand the pressure differntial, why its there and
how it works. Does the line going from the passenger valve cover to the air bridge draw air from the valve cover vent or supply air to it?????
Thanks,
DH
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Safety Car
Joined: Sep 2003
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From: Cape Coral FL
Originally Posted by phils C5 vette
does it stop make the car burn oil ?
Last edited by ArKay99; Oct 10, 2005 at 11:22 AM.
Safety Car
Joined: Sep 2003
Posts: 3,558
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From: Cape Coral FL
Originally Posted by Dirty Howie
I have the same setup as you. Except my 2004 did not come with PCV valve. I don't really understand the pressure differntial, why its there and
how it works. Does the line going from the passenger valve cover to the air bridge draw air from the valve cover vent or supply air to it?????
Thanks,
DH
how it works. Does the line going from the passenger valve cover to the air bridge draw air from the valve cover vent or supply air to it?????
Thanks,
DH
Safety Car
Joined: Nov 2001
Posts: 3,753
Likes: 191
From: Orange County California
Originally Posted by connecticut
for those that don't have the ls6 pcv system start here; www.ls1howto.com
I need a step by step on how to do this with the 2001 Ls6 system. WHere can i find that. I think there were changes in 02.
Safety Car
Joined: Sep 2003
Posts: 3,558
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From: Cape Coral FL
Originally Posted by robertpel9
I need a step by step on how to do this with the 2001 Ls6 system. WHere can i find that. I think there were changes in 02.
Safety Car
Joined: Nov 2001
Posts: 3,753
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From: Orange County California
Awesome, that is the best and shotest writ up i have see of it. I see the hose leaving from behind the throttle body and the PCV valve is about 8 inche into it if you trace it to the block. The valve still rattles so i know it works. So basically i just want to put the can in between this valve and as close to the block as possible right??
Is the DIY catch can the best or do you reccomend one i should buy??
Is the DIY catch can the best or do you reccomend one i should buy??
Team Owner
Joined: May 2004
Posts: 26,345
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From: SoCal
[QUOTE=robertpel9] So basically i just want to put the can in between this valve and as close to the block as possible right??
QUOTE]
FWIW: I put mine away from the engine....up front of the radiator shroud on the right frame. This way the can stays cooler and there is a longer distance for the oil fumes to make it back to the intake.
DH
QUOTE]
FWIW: I put mine away from the engine....up front of the radiator shroud on the right frame. This way the can stays cooler and there is a longer distance for the oil fumes to make it back to the intake.
DH
Safety Car
Joined: Nov 2001
Posts: 3,753
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From: Orange County California
So you must have added A LOT of hose then right??
I just looked now while checking my oil (i am not suing any again now that i am away fromt he track)
Anyway the hose with the PCV valve on it is short. It a short loop from the middle of the passenger side of the engine and loops to the passenger side still just behind the throttle body. I assume this is the hose the can goes in?
Do i want it on the "engine" side of the hose between the engine and the PCV valve or the "throttle body" side of the hose between the Throttle body and the PCV. And are you saying to add a lot more hose as the factory set up is short.
Please advise. I am ready to do this tomorrow night but want to do it right. I am thinking i don't have the ring issue and rather it is just oil getting into the intake under my usual aggresive driving.
I just looked now while checking my oil (i am not suing any again now that i am away fromt he track)
Anyway the hose with the PCV valve on it is short. It a short loop from the middle of the passenger side of the engine and loops to the passenger side still just behind the throttle body. I assume this is the hose the can goes in?
Do i want it on the "engine" side of the hose between the engine and the PCV valve or the "throttle body" side of the hose between the Throttle body and the PCV. And are you saying to add a lot more hose as the factory set up is short.
Please advise. I am ready to do this tomorrow night but want to do it right. I am thinking i don't have the ring issue and rather it is just oil getting into the intake under my usual aggresive driving.
Safety Car
Joined: Sep 2003
Posts: 3,558
Likes: 2
From: Cape Coral FL
Originally Posted by robertpel9
So you must have added A LOT of hose then right??
I just looked now while checking my oil (i am not suing any again now that i am away fromt he track)
Anyway the hose with the PCV valve on it is short. It a short loop from the middle of the passenger side of the engine and loops to the passenger side still just behind the throttle body. I assume this is the hose the can goes in?
Do i want it on the "engine" side of the hose between the engine and the PCV valve or the "throttle body" side of the hose between the Throttle body and the PCV. And are you saying to add a lot more hose as the factory set up is short.
Please advise. I am ready to do this tomorrow night but want to do it right. I am thinking i don't have the ring issue and rather it is just oil getting into the intake under my usual aggresive driving.
I just looked now while checking my oil (i am not suing any again now that i am away fromt he track)
Anyway the hose with the PCV valve on it is short. It a short loop from the middle of the passenger side of the engine and loops to the passenger side still just behind the throttle body. I assume this is the hose the can goes in?
Do i want it on the "engine" side of the hose between the engine and the PCV valve or the "throttle body" side of the hose between the Throttle body and the PCV. And are you saying to add a lot more hose as the factory set up is short.
Please advise. I am ready to do this tomorrow night but want to do it right. I am thinking i don't have the ring issue and rather it is just oil getting into the intake under my usual aggresive driving.
Melting Slicks
Joined: Sep 2003
Posts: 2,062
Likes: 117
I collect oil in the first catch can and the second i turning brown from vapor when the first in line is 1/3 full of oil.
The paper filter is turning brown when it begins to collect oil in the second catch can :
The paper filter is turning brown when it begins to collect oil in the second catch can :
