2015-2016 Crank Pulley Size

[Boostedtoy]

I have searched but cannot seem to come across the factory crank pulley size for a 15-16 S550 GT. Any help is appreciated.

Thanks

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[Boostedtoy]

The reason I am trying to find it is to do blower rpm calcs.

Thanks

 

[Kellys69z]

6.780 if memory serves me right

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