Hello guys,

I have a question regarding to supercharger pulley size. Where do I measure the size of the pulley ? Lowest groove where belt sits in ? Would like to measure mine but could not find info regarding to that.

 

Across the tops of the 7 ridges in the center where the belt rides.
A vernier caliper works perfect for this.

 

I have made a quick picture of what I understood, let me know if I got it correct. Going to make sure I have a S/C with claimed size.

 

Yep that’s right.
I’m on the east side of town, bring it by if you don’t have a dial caliper big enough.