Well, I don't know if we really started the 19t thing or not but my local oval track loved to play around with different motor specs. For a while we went with the 21 turn Procar motor for stock. We even had a big handout race with them. When 1/12th started to take off we ran mod until someone had the bright idea of using all our old Procar motors from 1/10 and allowing us to bust them apart and true the coms all we wanted. Then one day we decided to get Cam to make us a bunch of 19t mods to be our spec 1/12th motor. These were not quite todays 19t's since you could still adjust timing all you wanted but these were fantastic running motors with the same wire and wind. It was just a couple years later that fixed timing 19t racing started to spring up.
Sean. Certified speed crazed mowron.
Team Shepherd USA