LS1 PCV system to a LS3/7 style....how to route it?????
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I got the plug for the drivers side valve cover. I also have a catch can, but not sure what to do with the 2 outlets on the passenger valve cover and how to route the catch can.....anyone have a pic or a diagram??
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Fresh filtered air into the valve cover, from either the Throttle body port or from the fresh air tube after the MAF.
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Blank off any outlet ports on the rear of the valve covers.
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Blank off any outlet ports on the rear of the valve covers.
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Anywhere between the front of the throttle body blade and the MAF will do.
Ideally it should be air thats been "metered" by the MAF, since that same volume of air ends up in the intake manifold once it has swooped thru the valve covers and valley.
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![Name: LS2PCV2.jpg
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Ideally it should be air thats been "metered" by the MAF, since that same volume of air ends up in the intake manifold once it has swooped thru the valve covers and valley.
![Name: DSC00080.jpg
Views: 2757
Size: 65.8 KB](https://ls1tech.com/forums/attachments/generation-iv-external-engine/664796d1501791986-ls1-pcv-system-ls3-7-style-how-route-dsc00080.jpg)
![Name: 15860150_large.jpg
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Size: 39.1 KB](https://ls1tech.com/forums/attachments/generation-iv-external-engine/664797d1501791986-ls1-pcv-system-ls3-7-style-how-route-15860150_large.jpg)
![Name: LS2PCV2.jpg
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Size: 13.0 KB](https://ls1tech.com/forums/attachments/generation-iv-external-engine/664798d1501791986-ls1-pcv-system-ls3-7-style-how-route-ls2pcv2.jpg)
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Just about all the engines made after about 2002 do not have an external PCV valve like the LS1 had.
LS2/LS3/LS6/LS7 all have a baffle arrangement under the valley cover and use that instead of an external valve.
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