Oil Catch Can Question...
Thread Starter
Melting Slicks
Joined: Jun 2006
Posts: 2,923
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From: Cleveland Tennessee
Oil Catch Can Question...
I've just bought a nice oil catch can for my 02 Z06, the instruction say for the 1997-2003 LSx engines to splice the can into the hose from the passengers valve cover to the throttle body, but then it also says on the 2002-2003 LS6 Z06's splice can into the hose that goes from the valley pan cover to the front of the intake.
My question in that there is probably vapors coming from both the valve cover to throttle body as well as there is from the valley pan cover to the intake, which hose should I put the oil catch can into?
My question in that there is probably vapors coming from both the valve cover to throttle body as well as there is from the valley pan cover to the intake, which hose should I put the oil catch can into?
Team Owner
Joined: May 2001
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From: Dear Karma, I have a list of people you missed.
St. Jude Donor '08-'09-'10-'11-'12-'13-'14-'15-'16
Originally Posted by RonVette2
I've just bought a nice oil catch can for my 02 Z06, the instruction say for the 1997-2003 LSx engines to splice the can into the hose from the passengers valve cover to the throttle body, but then it also says on the 2002-2003 LS6 Z06's splice can into the hose that goes from the valley pan cover to the front of the intake.
My question in that there is probably vapors coming from both the valve cover to throttle body as well as there is from the valley pan cover to the intake, which hose should I put the oil catch can into?
My question in that there is probably vapors coming from both the valve cover to throttle body as well as there is from the valley pan cover to the intake, which hose should I put the oil catch can into?
The hose from front of the valve cover to the throttle body is left alone. (The air flow in that hose goes from the throttle body to the valve cover and provides filtered air to the crankcase.)
HTH,
Robert
Thread Starter
Melting Slicks
Joined: Jun 2006
Posts: 2,923
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From: Cleveland Tennessee
I appreciate that Robert, I was about to add the can to the valve cover to TB hose, but figured that I would wait to get a response. 
Thanks, I think that was what the instructions were trying to say, but it wasn't 100% clear to me. I also thought that both were going to the Tb and intake with vapors. Great information, I will go out and finish the job, and be back in a few.
Thanks, I think that was what the instructions were trying to say, but it wasn't 100% clear to me. I also thought that both were going to the Tb and intake with vapors. Great information, I will go out and finish the job, and be back in a few.
Team Owner
Joined: May 2001
Posts: 36,836
Likes: 244
From: Dear Karma, I have a list of people you missed.
St. Jude Donor '08-'09-'10-'11-'12-'13-'14-'15-'16
Originally Posted by RonVette2
I appreciate that Robert, I was about to add the can to the valve cover to TB hose, but figured that I would wait to get a response. Thanks, I think that was what the instructions were trying to say, but it wasn't 100% clear to me. I also thought that both were going to the Tb and intake with vapors. Great information, I will go out and finish the job, and be back in a few.
Thanks, I think that was what the instructions were trying to say, but it wasn't 100% clear to me. I also thought that both were going to the Tb and intake with vapors. Great information, I will go out and finish the job, and be back in a few.
Racer
Joined: Apr 2006
Posts: 332
Likes: 0
From: Palo Alto CA
I get a TON of oil from that pass head -> TB hose, just to let you know, and not a lot in the catch can from the valley cover to the intake.
BUT - I race on autoX slicks regularly and am way over 1g laterally.
BUT - I race on autoX slicks regularly and am way over 1g laterally.
Thread Starter
Melting Slicks
Joined: Jun 2006
Posts: 2,923
Likes: 1
From: Cleveland Tennessee
I made a few calls to some friends with more info also and found that The head to TB may be the one to put the can in, also. So I have plumbed it into that for the moment. (I took the original GM hose off completly to save in case I wanted it back, it's preformed GM 11/32 hose) and I will leave that set-up for a bit and check it out regularly and see how it goes. Then I might try the valley pan cover to intake one and see how that goes.
Thanks for the input.
Thanks for the input.
Thread Starter
Melting Slicks
Joined: Jun 2006
Posts: 2,923
Likes: 1
From: Cleveland Tennessee
So Josh, you think that is the best place to pipe into the can? I see the logic, but am still not 100% certain that one vs the other, which would have more oil collected.
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Le Mans Master
Joined: Dec 2003
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From: Atlanta metro Ga.
The routing in the pic is correct, you should have the catch-can between the valley / passenger-side PCV hose and the intake manifold (not the hoses on the driver’s side), with one exception..
On the pic above (Elite Engineering catch can) the hose routing is as-described in the installation instructions, BUT, I have the intake manifold hose routed to the top fitting, to take advantage of gravity; not only do the oil droplets / vapors have to travel down the side, but then make a 180 degree turn, go vertical, survive the trip through the metal mesh as well.
Visual inspection of the inside of the can confirms my theory, i.e. there is a stream of oil running right down the side of the can, indicating it never went airborne, but simply ran straight down the sides. It only makes sense to route the hoses this way, gravity is free, why not let it assist.
On the pic above (Elite Engineering catch can) the hose routing is as-described in the installation instructions, BUT, I have the intake manifold hose routed to the top fitting, to take advantage of gravity; not only do the oil droplets / vapors have to travel down the side, but then make a 180 degree turn, go vertical, survive the trip through the metal mesh as well.
Visual inspection of the inside of the can confirms my theory, i.e. there is a stream of oil running right down the side of the can, indicating it never went airborne, but simply ran straight down the sides. It only makes sense to route the hoses this way, gravity is free, why not let it assist.
Last edited by Dan_the_C5_Man; Nov 29, 2006 at 01:17 AM.
Thread Starter
Melting Slicks
Joined: Jun 2006
Posts: 2,923
Likes: 1
From: Cleveland Tennessee
I have the hose set-up the way you mentioned, although I have them on the hose that goes from the valve cover to the thottle body, is this not a good place to have it to catch oil vapors, or is the line from the valley pan cover to the intake a better place to add the can?
There has been comments for both ways posted here. ( I guess a can for each way would be nice, but I do not want to have it look like it is overboard...lol )
There has been comments for both ways posted here. ( I guess a can for each way would be nice, but I do not want to have it look like it is overboard...lol )
Le Mans Master
Joined: Dec 2003
Posts: 5,561
Likes: 448
From: Atlanta metro Ga.
Originally Posted by RonVette2
I have the hose set-up the way you mentioned, although I have them on the hose that goes from the valve cover to the thottle body, is this not a good place to have it to catch oil vapors, or is the line from the valley pan cover to the intake a better place to add the can?
There has been comments for both ways posted here. ( I guess a can for each way would be nice, but I do not want to have it look like it is overboard...lol )
There has been comments for both ways posted here. ( I guess a can for each way would be nice, but I do not want to have it look like it is overboard...lol )
Thread Starter
Melting Slicks
Joined: Jun 2006
Posts: 2,923
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From: Cleveland Tennessee
I appreciate that Dan, I'll change it tomorrow afternoon, to go with the hose from the valley pan cover to the intake, and reinstall the original hose back to the valve cover to thottle body as well.
Le Mans Master
Joined: Dec 2003
Posts: 5,561
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From: Atlanta metro Ga.
Good move.. In short, for the vast majority of folks, most of the oil in the intake is entering from the PCV lines; in a road-race / high G-force situation, it's possible for oil to make its way into the throttle body line. For the ultimate set-up, run 2 cans; if you have to choose one, go with the valley cover / intake. Whatever you do, don't cap anything off.
Melting Slicks
Joined: Sep 2003
Posts: 2,062
Likes: 117
Originally Posted by Dan_the_C5_Man
The routing in the pic is correct, you should have the catch-can between the valley / passenger-side PCV hose and the intake manifold (not the hoses on the driver’s side), with one exception..
On the pic above (Elite Engineering catch can) the hose routing is as-described in the installation instructions, BUT, I have the intake manifold hose routed to the top fitting, to take advantage of gravity; not only do the oil droplets / vapors have to travel down the side, but then make a 180 degree turn, go vertical, survive the trip through the metal mesh as well.
Visual inspection of the inside of the can confirms my theory, i.e. there is a stream of oil running right down the side of the can, indicating it never went airborne, but simply ran straight down the sides. It only makes sense to route the hoses this way, gravity is free, why not let it assist.
On the pic above (Elite Engineering catch can) the hose routing is as-described in the installation instructions, BUT, I have the intake manifold hose routed to the top fitting, to take advantage of gravity; not only do the oil droplets / vapors have to travel down the side, but then make a 180 degree turn, go vertical, survive the trip through the metal mesh as well.
Visual inspection of the inside of the can confirms my theory, i.e. there is a stream of oil running right down the side of the can, indicating it never went airborne, but simply ran straight down the sides. It only makes sense to route the hoses this way, gravity is free, why not let it assist.
Christian
PS: Thanks to Elite Engineeringf or the very well built catch can....
Thread Starter
Melting Slicks
Joined: Jun 2006
Posts: 2,923
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From: Cleveland Tennessee
MuscleJunkie, The air with oil vapors that goes through the PCV valve hoses from the valley pan cover under the intake to the intake, this allows oil vapors to get into the intake and possibly build up residue in there. The oil catch can has a screen/filter in it and catches some, hopefully most of the oil vapors that go through that hose before going into the intake. The oil catch can then is drained regularily.
Instructor
Joined: Jan 2006
Posts: 242
Likes: 1
From: Raleigh NC
Originally Posted by RonVette2
MuscleJunkie, The air with oil vapors that goes through the PCV valve hoses from the valley pan cover under the intake to the intake, this allows oil vapors to get into the intake and possibly build up residue in there. The oil catch can has a screen/filter in it and catches some, hopefully most of the oil vapors that go through that hose before going into the intake. The oil catch can then is drained regularily.
Thanks
Thread Starter
Melting Slicks
Joined: Jun 2006
Posts: 2,923
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From: Cleveland Tennessee
Yes there are a few different vendors on line that sell quality Oil Catch Cans, I just bought mine for $79, I believe most of them come complete as did mine. And you usually get to choose the finish too, most of them are Aluminum, mine is anodized red. And yes those that decide to track their cars do us them a lot, especially road course driving where the oil may get moved around more. I was just looking for the company that I got mine from the other day but I will have to get back with that. The only ones that I found on line a few moments ago were $100-$149, but like I mentioned before I got mine for $79 and it is very nice quality, check back I'll get the name off the paper work that is in the shed. And yes it was an easy installation. I'd recommend this mod, but that's just my two cents too.
Pro
Joined: Sep 2006
Posts: 634
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From: abingdon maryland
here is the 1 mil question. what about forced induction. do you set it up the same way. i understand you need a check valve in one of those lines. where do i get one. if i am set up for f/induction do i already have a check valve. thanks. kvn
Race Director
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From: Whippany NJ
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St. Jude Donor '08-'09
NCM Sinkhole Donor
Originally Posted by Dan_the_C5_Man
On the pic above (Elite Engineering catch can) the hose routing is as-described in the installation instructions, BUT, I have the intake manifold hose routed to the top fitting, to take advantage of gravity; not only do the oil droplets / vapors have to travel down the side, but then make a 180 degree turn, go vertical, survive the trip through the metal mesh as well.