I am getting ready to install a ported blower (Gen3) and a ported TB on my L67.. In looking at the PCV configs, I am a bit confused:
1) The standard PCV setup on the Gen 3 blower has the PCV valve on the backside with a hole on top that exits inside the blower casing (after the throttle body completely). Couldn't find a good picture online. can take a picture of the inside of my blower inlet if needed for clarification.
2) The throttle body also appears to have it's own separate PCV entry location on the back-side (connecting side to the blower) as shown below (labeled PCV passage):
This passage exits into the throttle body after the MAF, but upstream of the throttle body blade as shown below:
Why/what are these two separate "PCV" inlet locations achieving? I mainly understand the function of the PCV setup on the blower, but not this PCV setup in the throttle body.
I also am aware of guys opening up the throttle body PCV on the bottom of the L67 throttle bodies for intercooler applications per the thread below:
http://www.grandprixforums.net/threa...cover-breather!
Still don't know why there are 2 ports to begin with though on stock L67 setups.
Thanks in advance for clarifying my confusion
