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Old 02-25-2009, 01:37 PM   #2
Illsti
Scooby Specialist
 
Member#: 131183
Join Date: Nov 2006
Chapter/Region: Tri-State
Location: Turbo's R' Us
Vehicle:
05 STI
CGM 402whp386wtq

Default

When targeted boost is reached the wastegate opens letting hot exhaust gas out to slow down the turbine from overboosting, it doesnt totally bypass the d.p. it just diverts some of the u.p. flow out of the wastegate to control boost.
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