mperry

Thank you for the feed back. I would say at -.5o I was seeing the inner 10% wear, after moving to -.3o I was thinking it was a wider area but couldn't be sure. This is the only car I have owned that has driven me absolutely crazy with front tire wear. Thanks again. Awesome feedback, awesome site.

Just had my IS300 sportcross in for an alignment. It suffers the typical inner tire wear so had them bring in the camber angles too. Heres how it came off the rack. (Decimal degrees) Left Front Camber: -.3o Right Front Camber: -.3o Left Front Caster: 6.2o Right Front Caster: 5.8o Left Front Toe: .05o Right Front Toe: .04o Total Toe: .09o Left Rear Camber: -.6o Right Rear Camber: -.6o Left Rear Toe: .04o Right Rear Toe: .16o Total Toe: .19o It all seemed ok to me and at the time I did not put new tires on. Now 1500 miles later it seems like it might still be eating tires. I cant be sure because the old ones were not great. If these settings are true and accurate how much wear should I expect? (I had been running -.50 camber and got a little over 30,000 miles out of cheap tires) Thanks to all for your help and comments.

Thank you, I really appreciate getting it straight from experts. I am a couple weeks from getting it to shop, but I anticipate posting some funny antidotes about telling the techs where the settings need to be. Just as a side if anyone is curious (I had to look it up) here's how you convert decimal degrees to degrees. Decimal Degree = Degree + (M/60) + (s/3600), which translates the above camber settings to -.25 to -.41 in decimal degrees. (Just in case the tech doesnt know how to change his machine settings) Any thoughts on how much toe? (This is just my driver car, no track time)

Thank you Tony, Apologies for the failed link. Here are the current settings. (All in degrees) Left Front Camber: -.50 Left Front Caster: 5.5 Left Front Toe: .04 Right Front Camber: -.50 Right Front Caster: 5.9 Right Front Toe: .05 Front Total Toe: .09 Left Rear Camber: -.50 Left Rear Toe: .15 Right Rear Camber: -.70 Right Rear Toe: .03 Rear Total Toe .18 My car is factory height so I doubt they ran out of adjustment. I think its more a matter of the light turned green on the machine (ie acceptable range) and the tech called it good. My thought is that since the cars are setup without weight the camber angle should be 0. Then adding passengers would cause the car to sag slightly giving it ever so little negative camber. I also think toe should be slightly in for straight line tracking but I do not know how much is enough or too much. Based on other cars I have owned, this one seems to naturally have a lot of caster, which should already give it straight line tracking.

I found this site by trying to fix my IS tire wear as well. My last alignment came out with only -.50 camber on both sides and its still eating tires. I replaced the lower control arm bushings a couple years ago, (with the ones from Figs) and that helped tighten up turn-ins but not a lot with the tire wear. I am getting ready to head in for another alignment and was going to have then get camber closer to 0 and toe it in (just to even out the wear). If you're interested here are my current settings. https://drive.google.com/drive/folders/0B4VErE53Si-pbF9hYktqUWh4aWM