I'm trying to figure out what % pullies are on these superchargers , they're both 55mm..
Any help would be much appreciated..
I AM selling one of them too btw if interested..

 

looks like 16%
stock S diameter is 65.5 mm
these are 55, so 16% reduction in diameter by the numbers
https://www.mini2.com/threads/what-d...ulleys.119133/

 

Odd , I found numerous different measurements for 17% pulley. how can that be ???? Obviously people been posting misinformation.. 54.5 and I've seen and 54.3 and I even seen 55.5 , that's a whole mm larger..lol ugh.. I guess once we have the other supercharger off that has a 15% I can compare the 2x then..
p.o also said he'd thought it was a 17% when he put it on so idk.