PCV routing question
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PCV routing question I’ve got a quick question on routing the “clean” side of my PCV from the passenger side valve cover on my LQ4 with LS6 intake. I still have the original truck throttle body, which does not have a port that would typically provide fresh air to route to the valve cover port. The throttle body opening has a hole on the upper passenger side next to the plate, which I’m assuming matched up with the original PCV port on the truck intake.
Does anyone know if this hole matches up to anything on the LS6 intake.
Can I just connect to one of the ports on the LS6 intake right after the TB or should I install a barbed fitting on the intake pipe between the MAF and TB as my fresh air source?
Thanks!
Does anyone know if this hole matches up to anything on the LS6 intake.
Can I just connect to one of the ports on the LS6 intake right after the TB or should I install a barbed fitting on the intake pipe between the MAF and TB as my fresh air source?
Thanks!
You need a connection between the intake manifold and the crankcase (manifold vacuum will "pull" on the crankcase); and you need a make up air line from the intake air tube DOWNSTREAM of the MAF/UPSTREAM of the throttle body that connects to the crankcase (usually valve cover) through an orifice that limits flow.
I have a 4.8 truck motor with ls6 intake. Without catch can currently. Dirty side goes to intake, so that is easy.
Clean must come from throttle body or somewhere further upstream. If you dont have a way to get from throttle body then you must keep moving upstream and get it from before the throttle body. You can not put clean into intake manifold. You will create a massive vacuum that will cause a nasty squeal. So if your throttle body doesnt have a port add on to your intake.
Clean must come from throttle body or somewhere further upstream. If you dont have a way to get from throttle body then you must keep moving upstream and get it from before the throttle body. You can not put clean into intake manifold. You will create a massive vacuum that will cause a nasty squeal. So if your throttle body doesnt have a port add on to your intake.
