Greddy or AMW Catch Can
Thread Starter
Launching!
Joined: May 2005
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Greddy or AMW Catch Can Looking at purchasing a Catch Can. I run all LG stuff on my 2002 Z06. As I am not familiar with the difference of these two catch cans, can anyone explain the difference and which one is better.
Thank you,
JG853
Thank you,
JG853
None. I've had the Greddy. Change your pcv valve to the 4.8 or 5.3 Silverado (truck, any LSx engine '99-'04) pcv and your oil problems are done! There's a thread on this out there. I did it and it worked perfectly... then I deleted the whole pcv system all together.
It has to do with the internal orifice size between the LS1,6 and truck.
It has to do with the internal orifice size between the LS1,6 and truck.
Originally Posted by FIREHAWK#608
None. I've had the Greddy. Change your pcv valve to the 4.8 or 5.3 Silverado (truck, any LSx engine '99-'04) pcv and your oil problems are done! There's a thread on this out there. I did it and it worked perfectly... then I deleted the whole pcv system all together.
It has to do with the internal orifice size between the LS1,6 and truck.
It has to do with the internal orifice size between the LS1,6 and truck.
So this is where the misinformation comes from...
This is NOT the end all of the PCV oil sucking problem...it certainly didn't help for mine, and it makes an annoying whistle sound that sounds friggin retarded.
Worked for me.... 
Then I got rid of it all to de-clutter the engine bay. The Greddy catch can DIDN'T work. I still had some oil in the intake even though the can was catching a lil'.
With no PCV the intake is bone dry. How about screw the pcv system all together? Is that bad advice?
Then I got rid of it all to de-clutter the engine bay. The Greddy catch can DIDN'T work. I still had some oil in the intake even though the can was catching a lil'.
With no PCV the intake is bone dry. How about screw the pcv system all together? Is that bad advice?
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is this the greddy you guys are talking about? what size 9mm or 15mm? can someone send me a link to the greddy catch cans that are compatible with our cars? thank you
http://cgi.ebay.com/ebaymotors/Gredd...QQcmdZViewItem
http://cgi.ebay.com/ebaymotors/Gredd...QQcmdZViewItem
Launching!
Joined: Dec 2001
Posts: 222
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From: DFW, TX
5w40. I switched to this, installed my Greddy and it is still clean! I even used the clear hose it came with and it's still clear!!! When I put in my ls6 intake I was literally pouring oil out of the ls1 manifold. 5w40.
Originally Posted by MeentSS02
So this is where the misinformation comes from...
This is NOT the end all of the PCV oil sucking problem...it certainly didn't help for mine, and it makes an annoying whistle sound that sounds friggin retarded.
This is NOT the end all of the PCV oil sucking problem...it certainly didn't help for mine, and it makes an annoying whistle sound that sounds friggin retarded.
Mine sucks just as much after the truck PCV as it did before.
Originally Posted by weestro
5w40. I switched to this, installed my Greddy and it is still clean! I even used the clear hose it came with and it's still clear!!! When I put in my ls6 intake I was literally pouring oil out of the ls1 manifold. 5w40.
Originally Posted by FIREHAWK#608
With no PCV the intake is bone dry. How about screw the pcv system all together? Is that bad advice?
Thread Starter
Launching!
Joined: May 2005
Posts: 255
Likes: 0
Thanks to everyone for all of the input.
With either system, do I need 9mm or 15mm.
I have a 2002 Z06 that dynoed at 450 RWHP and 408 RW Torque (SAE) on a 92 degree, humid day in Chicago (Lou G put my package togather from LG Motorsports). I will be installing a Mamofied FAST 90 / NW 90 TB in the spring. I thought I might as well get a catch can since I heard a lot of guys indicating to put one on for reassurance.
Again, thatnks for all of the help.
With either system, do I need 9mm or 15mm.
I have a 2002 Z06 that dynoed at 450 RWHP and 408 RW Torque (SAE) on a 92 degree, humid day in Chicago (Lou G put my package togather from LG Motorsports). I will be installing a Mamofied FAST 90 / NW 90 TB in the spring. I thought I might as well get a catch can since I heard a lot of guys indicating to put one on for reassurance.
Again, thatnks for all of the help.
Originally Posted by FIREHAWK#608
I've got a breather:
You will need the 9mm. You can use all 3/8" fuel line everywhere.
Where your stock PCV plugs into your intake manifold, there is a piece of rubber hose that slides over a part sticking out. If you split that rubber hose and trace it back inside the padded part (you will see it), there is a hard plastic part inside that has a bump formed into it. Remove the rubber hose back to that and a piece of 3/8" fuel line will slide over the bump and seal such that it doesnt even need a hose clamp. 3/8" also fits the stock port on the intake manifold as well.
You can see what i'm talking about in the first pic. If you look on the hose leading away from the PCV valve, you'll see a bump in the hose. It's right at the 3 on 3/8"
https://ls1tech.com/forums/generation-iii-external-engine/428410-pics-greddy-catch-can-install-56k.html
Where your stock PCV plugs into your intake manifold, there is a piece of rubber hose that slides over a part sticking out. If you split that rubber hose and trace it back inside the padded part (you will see it), there is a hard plastic part inside that has a bump formed into it. Remove the rubber hose back to that and a piece of 3/8" fuel line will slide over the bump and seal such that it doesnt even need a hose clamp. 3/8" also fits the stock port on the intake manifold as well.
You can see what i'm talking about in the first pic. If you look on the hose leading away from the PCV valve, you'll see a bump in the hose. It's right at the 3 on 3/8"
https://ls1tech.com/forums/generation-iii-external-engine/428410-pics-greddy-catch-can-install-56k.html
Thread Starter
Launching!
Joined: May 2005
Posts: 255
Likes: 0
Thanks for all of the help
JG853
JG853
Originally Posted by TheBlurLS1
You will need the 9mm. You can use all 3/8" fuel line everywhere.
Where your stock PCV plugs into your intake manifold, there is a piece of rubber hose that slides over a part sticking out. If you split that rubber hose and trace it back inside the padded part (you will see it), there is a hard plastic part inside that has a bump formed into it. Remove the rubber hose back to that and a piece of 3/8" fuel line will slide over the bump and seal such that it doesnt even need a hose clamp. 3/8" also fits the stock port on the intake manifold as well.
You can see what i'm talking about in the first pic. If you look on the hose leading away from the PCV valve, you'll see a bump in the hose. It's right at the 3 on 3/8"
https://ls1tech.com/forums/showthread.php?t=428410
Where your stock PCV plugs into your intake manifold, there is a piece of rubber hose that slides over a part sticking out. If you split that rubber hose and trace it back inside the padded part (you will see it), there is a hard plastic part inside that has a bump formed into it. Remove the rubber hose back to that and a piece of 3/8" fuel line will slide over the bump and seal such that it doesnt even need a hose clamp. 3/8" also fits the stock port on the intake manifold as well.
You can see what i'm talking about in the first pic. If you look on the hose leading away from the PCV valve, you'll see a bump in the hose. It's right at the 3 on 3/8"
https://ls1tech.com/forums/showthread.php?t=428410
