A blowoff valve releases built up pressure in intake tract "after" the turbo and puts it back into the intake "before" the turbo when you let off the gas. Some vent to atmosphere.
It is on the upper intercooler pipe.
'91 Talon Tsi AWD - modified
Live, Learn, Love and Bleed DSM...
[This message has been edited by Van (edited October 08, 2000).]
Look at my website under performance --> BOV. Shows where it's at..
'99 GST http://www.geocities.com/mospeed9844
Akimoto Air Fitler
GReddy Intercooler Piping
GReddy Profec B
GReddy Boost and EGT Gauge
Autometer Air/Fuel Meter
Front and Rear Strut Bars
after you shift the throttle closes and all that boost (positive pressure) needs somewhere to go, thus the bo valve opens allowing it to escape to the intake side via the vacuum tube on the top of the valve (diaphram)
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