Here's something for the archives.....anyone who buys a used Vortech with a unknown disc (or just the disk for that matter)...here's how you can find out what ratio you have, since there is no labeling on the disk itself.


........I called Vortech the other day and they gave me Diameters for the disks for each ratio.

2.72" Dia for the 12:1
2.47" Dia for the 10:1
2.22 Dia for the 8:1
1.85" Dia for the 6:1
1.59" Dia for the 4:1

I think those are the outside diam of each washer disk