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I have a 2003 Z06, and here's the installation diagram, directly from Elite Engineering's website:
As it clearly shows and states, reading left to right, the stock PCV valve sits BETWEEN the catch can OUTLET hose and the intake manifold. So that means the catch can comes PRIOR to the PCV valve. I assume Elite Engineering instructs us to do it this way for a reason? (I hope so!)
That is correct. The PCV is between the catch can and the intake manifold for the LS6. The LS6 has a different PCV setup than the LS1.
Look at Appendix A of the instructions and you can see there are 3 different configurations depending on year and engine model.
It doesn't really matter if the PCV valve is before or after the catch can ... it just has to be in the path and flowing as a one-way check valve as intended. As far as saying the PCV valve will not be "lubricated" if it's after the catch can isn't really true as there will always be a little remaining oil mist in the PCV fumes going through the system. No catch can will capture 100% of the oil. There will still be enough to keep the PCV valve working just fine.
What I don't understand is why they are different. It would seem like you would want the pcv valve lubricated, which would require the pcv valve to before the catch can. Also, it may reduce the amount of oil in the catch can. Either way it stops the oil from getting in the intake manifold. I think the configuration may only make a difference in the lifespan of the pcv valve and the amount of oil in the catch can.
Having the PCV valve before or after the catch can will not change how much oil the catch can will capture. One could also argue that having the PCV valve before the catch can could potentially over load it with oil and cause problems, but there are no reports one way or the other on PCV valve problems with any of these hookup configurations.
yep, just like i said, i could be totally wrong. HOWEVER! the ls1 takes the hose from the end of the pcv and routes it to the can and then to the intake therefore putting it upstream of the can. so i wasn't wrong. or was i?
The setup is dependent on the year and engine in the car. Read the entire instructions carefully, and look at Appendix A. Someone went through a lot of work to cover all configurations for the installation.
The setup is dependent on the year and engine in the car. Read the entire instructions carefully, and look at Appendix A. Someone went through a lot of work to cover all configurations for the installation.
Agreed! I read the instructions about 5 times before even buying the catch can to make sure I knew how it needed to be installed. Thanks for all the input guys. I can rest easier now knowing I wasn't reading the instructions wrong and that I have it installed correctly.
As usual, this forum is full of good people with great knowledge and info!
Guys, I'm confused. Are you looking at the same instructions that I am? I have a 2003 Z06, and here's the installation diagram, directly from Elite Engineering's website:
As it clearly shows and states, reading left to right, the stock PCV valve sits BETWEEN the catch can OUTLET hose and the intake manifold. So that means the catch can comes PRIOR to the PCV valve. I assume Elite Engineering instructs us to do it this way for a reason? (I hope so!)
Maybe I'll send a message to Elite and ask them why they suggest the above setup, and not putting the stock PCV valve BEFORE the catch can as you guys are talking about.
Any other thoughts on this are welcome. I want to make sure I not only have the correct setup, but the best one too.
Does anyone with a 2001 to 2003 LS6 have their PCV valve BEFORE the catch can? I suppose either way would work, as long as the direction of the flow is correct.
Thanks guys.
On the directions it says that after the PVC in goes to a hose to connect to the outlet. I thought the top of the can was the outlet. I figured the oil fumes should come out the engine and go into the side of the catch can and go to the bottom. Then the fumes that escape would go throught the top while being filtered and on to the intake.
Or maybe I don't know what I'm talking about.
On the directions it says that after the PVC in goes to a hose to connect to the outlet. I thought the top of the can was the outlet. I figured the oil fumes should come out the engine and go into the side of the catch can and go to the bottom. Then the fumes that escape would go throught the top while being filtered and on to the intake.
Or maybe I don't know what I'm talking about.
On the Elite Engineering catch can, the inlet to the can is the fitting on top, and the exit from the can is the fitting on the side. The hose that comes from the engine goes to the can inlet fitting (on top), and the hose that goes to the intake manifold goes to the can outlet fitting (on the side).
If you go to Elite Engineering's website and look at all the catch can instructions and drawings, they all show this setup.
On the Elite Engineering catch can, the inlet to the can is the fitting on top, and the exit from the can is the fitting on the side. The hose that comes from the engine goes to the can inlet fitting (on top), and the hose that goes to the intake manifold goes to the can outlet fitting (on the side).
If you go to Elite Engineering's website and look at all the catch can instructions and drawings, they all show this setup.
Thanks, but I've seen these things hooked up many different ways. The pic on Elites web site is an LS1, mine is an 02 Z06 and looks a little different.
Inlet as far as I know is always on the top - regardless of manufacturer. The manifold sucks the air from top to bottom of the can, where it goes thru the mesh atomizing the droplets and forcing them to drop to the bottom of the assembly for capture. I have my PCV before the can and it seems to work just fine. The valve is just that - keeps the flow going in one direction.
Color me stupid, but that's the way I understand the whole setup.
Thanks, but I've seen these things hooked up many different ways. The pic on Elites web site is an LS1, mine is an 02 Z06 and looks a little different.
There shouldn't be any different hookup configuration between them according to EEs' information that I can see. Post up some photos, etc of the differences you're seeing so we can see what's up.