I just picked up a set of 17x9 +63 wheels and will be running 255/40/17 Dunlop Z2 tires. I'm looking to realign my car and was wondering what specs everyone is using. I will be using the car for spirited driving and maybe a track day or two. I'm lowered on coil overs as well. I've considered UK specs, but is it suitable for non-stagger? All input is appreciated.

 

There is no strict rule, there is always a compromise involved somewhere becuase a DD street alignment won't work ideal for you on the track, so do you set up the car to perform the best on track and run through tires twice as fast on street or vice versa? Somewhere in the middle is comon place. -1.5 to -2.5 camber range all the way around. That could mean -1.5 up front and -2.5 in back or -2 all the way around etc. 0 toe up front is the best for tire longevity and arguable offers no performance drawback so this is a very comon setting amongst anyone no matter the use. Stock caster on this car is already at a high level so retaining that with more aggressive alignment has always been my challenge and goal. Rear toe set to min OEM spec or even a little less.

Running camber a bit on the conservative side up front will slow the turn in a bit and probably would help tame the over steer tendency you are going to notice more now moving to a square set up. I'd probably go with something close to -1.5 up front and -2.5 in back myself. I'm actually running that on my stagger lately just becuase I was going through to many front tires at -2.6. My caster at 6.5-7 is aiding in that as well I'm sure, scrubbing the insides more as you turn in, but with 255 up front and little steering wheel, I find more caster helps not only stabile the car at speed, but help keep the steering lively feeling. I'm not willing to compromise that aspect of my alignment for tire longevity.