What car?
9.1.4.1.B.2: "Supercharged cars may be approved on a case-by-case basis..."
9.1.4.G.22: "...supercharged engines must use OEM crankshaft and supercharger pulleys."
Exceptions may exist within the Allowances/Requirements table; for example:
"Lotus Elise SC/ Lotus Exige SC ... Minimum 2.9” supercharger pulley..."
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