I noticed on the side of the waste gate the is a connection for a vacuum tube can anyone tell me where to connect the tube
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RS2 Waste gate where do I connect the vacuum pipe?
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The larger one with the banjo on the WG lower chamber connects to the face of the turbo cold side via the N75. This controls the boost.
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The connector is a relic of the 10V Turbo engine, where boost was regulated via controlling the pressure of the upper wastegate chamber.
On 20V Turbos, the boost is regulated via controlling the pressure of the lower chamber.'95 Audi S2 Avant
'92 Audi Coupe T89 quattro 2.3E
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