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Old 03-28-2013, 12:53 PM   #10
BeastianSTI
Scooby Specialist
 
Member#: 310506
Join Date: Feb 2012
Chapter/Region: South East
Location: Florida
Vehicle:
2005 WRX STi
Blown Up Color

Default

Manual boost controller, or stock?

The only thing that - bar a fubar'd turbo - is going to inhibit that turbo is the wastegate, and/or an exhaust leak. If you run a line directly from the wastegate actuator to the compressor, you should hit boost fine. I performed this test a while ago, and used it to identify a faulty OEM EBCS. Do NOT floor the car, but it will let you know if it is solely the boost controller that is inhibiting boost, or a pre-turbo exhaust leak.
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