A4 (B5 Platform) Discussion Discussion forum for the B5 Audi A4 produced from 1995-2001 B5 FAQ

****how does supercharger work anyways? close to turbo right?

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Old 06-06-2002, 08:06 AM
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Default from the boost gauge on my car

Maybe you've got a different G2. On mine, the pulley on the front of the s/c is turned by the serpentine belt on the front of the engine. This means that s/c shaft speed is directly proportional to the engine speed. SO, max boost is at max engine rpm. Half engine speed gives half s/c shaft speed, approximately half boost. I've confirmed this both with a boost gauge and with Tony at PES. It is a very safe, reliable way to limit boost, but it only gives you max power gain at high rpm.

hth,
Dave
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