Just had my car aligned to my specs and had some weirdness that I haven't seen reported before. I'm looking for any input that may help define the cause.

The rear was to be set at -2.0 deg. camber and 1/8" total toe in. However, the mechanic called me out and told me that he couldn't get the toe with that amount of negative camber. I know this is an issue with the fronts and I suspect that the same problem is present in the rear but only at HIGH negative camber. For "only" -2.0 deg. camber, toe had to be set at -1/8" on each side (total toe in of 1/4").

Anyone else experience this? Those of you who have run toe-OUT, how'd you accomplish this? Nothing appeared to be bent or otherwise damaged...

 

My last alignment shows -2.00 and a toe-in of .023 degrees on each side which is about 1/10 inch. My car is lowered about an inch so might be different but the mechanic never said anything about not be able to get what I asked for.

I thought I had seen reports with more negative camber and zero toe.

 

Jeff, my impression after having my car aligned a few times is that toe moves towards toe-out as negative camber is put into the rear. I was able to get -23/8 camber (with me in the car) and 1/4" toe-in. If I had gone further with the camber I wouldn't have been able to maintain the 1/4" in - it would've moved closer to 0.

Next time I'm thinking of increasing the toe-in, even if it's at the cost of camber. The car's a bit loose these days...

 

Has anyone found that the alignment has changed hugely between alignments? I went from -1.0 deg. camber on the front to -1.5 on the left (no wonder I had excessive tire wear there!) and -0.3 on the right. No curbs but certainly my fair share of potholes (no huge ones) as well as the occasional nasty bump in a turn during autocrosses.

 

I found changes a couple of times until I had a talk with the service manager about proper torque. No changes since.

 

Surprisingly if you drive you car at all on the street it will need to ba aligned more than just once a year. I plan to check mine often during the season. Camber doesn't hurt tire wear as much as toe and toe can change easily.

As far as spec goes, I have between 1.8 and 2.1 negative camber in the rear with 3/32 toe in. Jason Sainis car is similar. Both alignments were done by King. I would look for another alignment shop if I were you.

Just my $.02

 

I thought I'd get a second opinion a little later on in the season - thanks...

 

I was able to get -2.5 degrees with 1/4 total toe-in (1/8 each side) in the rear.

No problems. I would try a different alignment shop as you mentioned.