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Old 06-23-2008, 09:52 AM   #1
adofly
Scooby Newbie
 
Member#: 107693
Join Date: Feb 2006
Location: CYPRUS-EUROPE
Vehicle:
2006 impreza Race
car 700hp

Default Boost controll for twin ext. wastegate??

We just installed our Ultimate Racing GT4088 twin entry twin external wastegate kit. We use Greddy's profec B boost controller, however we cannot control the boost, the wastegates do not open. We connected the hoses from the solenoid to the wastegates as per Greddy's instructions for external wastegate and put T connections between the wastegates, however the boost goes skyhigh.

Any ideas??
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Old 06-23-2008, 10:38 AM   #2
jaxscuby
Sammo Hung
Moderator
 
Member#: 10613
Join Date: Sep 2001
Chapter/Region: South East
Location: S Ga / N Fla
Vehicle:
2002 USDM WRX
WRB

Default

well you splitting the vacuum to 2 wastegate.
so try lower the boost psi you have in profec b.
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Old 06-23-2008, 11:02 AM   #3
CatfaceType-R
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Location: Micro aggression turnt
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they should at least open on spring pressure, depending on what kind of spring they are....
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Old 06-23-2008, 12:10 PM   #4
railguy
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Join Date: Jan 2004
Chapter/Region: MAIC
Location: MAIC
Vehicle:
2002 WRX
WRB

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I had the same problem, I had the hoses on the wrong nipples of the wastegates.
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Old 06-23-2008, 03:55 PM   #5
jaxscuby
Sammo Hung
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2002 USDM WRX
WRB

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he said nipples..
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Old 06-24-2008, 12:02 AM   #6
TAPOUT
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Location: Springfield, VA
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2007 HTA GT3794
Darton Sleeved

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(.) (.)
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Old 06-24-2008, 12:12 AM   #7
hybooststi
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0000 04
STI/EVO

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your lines are crossed up, you should try a halman manual boost controller!
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