Thread: Catch Can FAQ
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Old 11-18-2020, 03:52 PM   #332
Scooby Newbie
Member#: 510671
Join Date: Jan 2020
Chapter/Region: SCIC
Location: California
2006 WRX


how about this idea - I run a three port catch can with two inlets , one inlet going to the PCV and the other inlet to the valve cover breather lines, and the outlet to the turbo inlet pipe.

EDIT: just read this :
WRONG WAY: Disconnect the PCV<->Inlet line as well as the Crank Vent<->Inlet line. "T" the PCV and Crank vent lines together, and run the remaining end of the "T" to a single nipple on the inlet pipe. Cap the remaining nipple on the inlet. You'll be sending boost into places that definitely shouldn't ever see any. Bad idea.
I don't understand how t-ing the lines together is bad if they both ultimately share a junction at the turbo inlet pipe (which is under suction and not boost from the turbo) can someone elaborate.

also , as I understand vented catch can is not a god idea as it will allow unmetered air into the system
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sebastian323 is offline   Reply With Quote