So, for those of you that don't know, here's the general order of my RX-7 clutch-type LSD. For this example the "()" are the conical spring washers that put tension on the clutch packs.
axle-(-clutch pack-spider gears-clutch pack-)-axle.
So a mini clutch pack for each axle.
In order to increase the torque at which the axles break free, you can put a shim behind the conical washer to increase tension.
I've tried two coke can shims and it only gave me 10 extra foot pounds. Coke cans are apparently .005" thick. I made two .015" shims out of my old ECU (recycle!) and the torque was well over 110 ft/lbs. I took one shim out, so now there's only one .015" shim under one conical spring.
And I'm at 110 ft/lbs, right where I want it to be.
Will this cause one side to break away easier than the others, or since it's just a spacer, is the extra tension spread over to the other side as well?
Yes, I could make two .0075" shims, but I don't have that kind of material laying around.
Here's my baller torque sensing setup: