Today was alignment check/verify day. The avatar has over 2 years now with the Bergman SPC 1.0 adjustable UCA's. Plenty of street driving and probably 80-100 hits at the track. It seemed like the last time out I got a small wander at the big end of the track - certainly more than the car's usual dead straight run. Could it have just been the track? Maybe. Car also does a little wheelie at the track so that also made me want to have a look.
Found things hadn't changed much but enough that I went ahead and adjusted it. These UCA's make alignment adjustments VERY easy so I got my tools out and had at it.
Only had 2.2 deg caster on the LH (was 3.0 deg when i originally set it) and still had 3.0 deg on the RH. So I added some to both and set them to 3.6 deg at ride height. That degrades to about 3.2 deg at 1" of body lift and 2.2 deg at 2" body lift (measured at front tire fender opening). I don't know what the lift is at the big end of the track where caster matters the most so I just assume 1". (It has 4" or so lift on the hit.) Camber was set at about -0.4 deg with sides. I set toe to 1/8" also.
So we'll see how this plays out the next track day, currently planned for early September. (Thought some would get a chuckle out of my "tools. Yep, Mr BFH is always nearby but doesn't get used for this job. But my setup works and gets what I need!!)
Found things hadn't changed much but enough that I went ahead and adjusted it. These UCA's make alignment adjustments VERY easy so I got my tools out and had at it.
Only had 2.2 deg caster on the LH (was 3.0 deg when i originally set it) and still had 3.0 deg on the RH. So I added some to both and set them to 3.6 deg at ride height. That degrades to about 3.2 deg at 1" of body lift and 2.2 deg at 2" body lift (measured at front tire fender opening). I don't know what the lift is at the big end of the track where caster matters the most so I just assume 1". (It has 4" or so lift on the hit.) Camber was set at about -0.4 deg with sides. I set toe to 1/8" also.
So we'll see how this plays out the next track day, currently planned for early September. (Thought some would get a chuckle out of my "tools. Yep, Mr BFH is always nearby but doesn't get used for this job. But my setup works and gets what I need!!)















