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Old 08-17-2007, 01:16 PM   #3
fishheadback
Scooby Specialist
 
Member#: 68120
Join Date: Aug 2004
Chapter/Region: MWSOC
Location: KANSAS!!!
Vehicle:
1998 RS 2.0 vf23 STi
& MK6 GTI

Default

Realistically you should always be pulling vaccum from the crankcase.

During idle and manifold vaccum, the PCV pulls vaccum.

Then under postive manifold pressure the intake pulls vaccum via the turbo sucking in tons of air.
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