Caster

[Clifton]

This is how I got a little more caster.

To check caster I use a cheap $15 Ebay camber/caster gauge and taped some poster board with 20 degree angles on it. Never loan out a Joe's gauge LOL. Lay something on the ground parallel with the f/r wheels to have something to align to. Turn wheel 20*, zero gauge then turn to 20* the other way.

I used 12mm washers for spacers. The metric ones Ace sells have a tighter ID and smaller OD than 1/2". Pressed bushings out a little to move lower front arm forward and top rear arms back. I made UBJ shims but I believe Jaguar used them so the can be bought. Once I got the trunnion moved forward I tightened the trunnion bolt with the upper arms loose and applied quite a bit of rearward hand pressure to the UBJ while tightening. You don't want it to bind.  On one side my UBJ shims are centered. The other they are not. It's easier to pull a shim than washers at the bottom.

[jbcollier]

If your camber, castor, or KPI is off, something is bent.  Find it and fix it.

If you want to set the castor to a setting other than stock, Please, please be VERY careful.  The trunnion is NOT designed to take side loads. And, yes, they can shear/break/snap/bend.  The only way I would adjust castor is after fitting spherical lower joints such as Canley sell.

YMMV

[SwiftDB4]

How much change in caster did you get compared to stock?

[Clifton]

Nothing was bent, Lotus just botched up the caster. It's not a front heavy Triumph . Camber at factory numbers was ok for just casual driving but I added more. They got everything right with the Elise though. Tire pressures are checked occasionally after a run and camber and pressure are set based on that.
 

[Clifton]

How much change in caster did you get compared to stock?

I don't remember exactly what I was at or am at now without getting my book but I am around 3.5 degrees. Someone asked in a PM what I did and I couldn't post pics in a PM so I though I would share.