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Old 08-12-2018, 04:17 PM   #1
Join Date: Jan 2018
Location: Saskatchewan, Canada
Default B21ft boost recirc

How does a b21ft recirculate the boost it’s made when the engine is stock? I have not found any kind of bypass valve or anything
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Old 08-12-2018, 07:29 PM   #2
LH-Jet & Carb Free Zone
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Join Date: May 2003
Location: Duvall, WA

It doesn't. You can plumb in a CBV between the hot side IC pipe and the metal elbow that's between the fuel distributor boot and the coupler on the turbo. People usually use either the metal Pierburg valve from a Garrett T3 equipped 700 or a Bosch CBV from a Porsche or a Saab.


1982 242Ti - black, M46. 1985 245Ti - blue, M46. Formerly Blue245Ti, 245GT-Turbo, and, originally 242GT-Ti.
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