So I had someone on antoher forum reply to my torn cv boot with “dont you know about the zip tie trick”?
Well this led me on a google easter egg hunt. Turns out that lots of road racers do two things with their cv boots. One, they put zip ties or string between each valley on the boot to keep it from expanding due to the centripetal force of the grease. Two, they vent the boot at the small end with wd-40 straws etc.
I also found that DSS offers a “road race” option for thier axles where they use a stronger boot and also add a vent to them to relieve pressure.
So Im 99% convinced this is what happened to my boot. It expanded enough from the speeds and the grease and contacted either the motor mount itself or the bolts that hold it to the body.
So Im going to zip tie and vent the boots on the car before this happens again.
Also, I cant believe that no one I know has heard of this before. ( I still need to talk to my road race buddy but hes testing at the Glen today I believe).