Quote Originally Posted by seewavedr View Post
Can you change the crank and or S/C pulley in STU and take a weight penalty?
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..."