switching valve
06-02-04, 02:50 PM
#1
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switching valve
One quick question what is the purpose of the switching valve in the exhaust manifold? I can find references on how to check if it's working properly, but not its purpose.
06-02-04, 03:07 PM
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Engine, Not Motor
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Twin scroll. At low RPM/vacuum, it closes and directs exhaust gasses to hit the turbine at a sharper angle. This helps spool up. As RPM and boost builds, the actuator opens up and allows exhaust to hit the full tubine.
There are testing procedures in the factory and Haynes manuals.
There are testing procedures in the factory and Haynes manuals.
06-02-04, 03:27 PM
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I'm a boost creep...
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Originally posted by Aaron Cake
...it closes and directs exhaust gasses to hit the turbine at a sharper angle.
...it closes and directs exhaust gasses to hit the turbine at a sharper angle.
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