Originally Posted by s2000Junky

Yes you need to be sitting in the car wile getting aligned. A corner balance is an added expense and though nice to have done for tuning handling, its not absolutely imperative and not something i would consider to be causing your handling issue at speed. But yes you would have scales under each wheel and the weight is checked and then the coilover height adjusted to transfer cross/corner weight to balance the car.

There is nothing in your alignment that points to your handling issue. More front camber however isn't a bad idea in general for more balanced sport alignment. Leaving your rear at -1.9/-2 with another -.5 degree would be the OEM UK alignment spec. Your rear toe is fine as is, no reason to think that is causing your handling cork, i actually run even less at 2 degrees total.

Until I see further evidence, Im banking on your tire construction being the majority of the issue. The S2k is extremely sensitive to tire construction. Stiff 2 ply sidewalls such as what comes on all years OEM Bridgstone spec or equivalent are a priority to get the car to handle right. Basing your tire selection from the experience/rating from another car is a mistake, especially when its not even in the same ballpark of vehicle platforms such as your buddies who inspired you to run these tires. More tire pressure and less rear camber with more front camber is probably the best direction to go with for the tires your on. Generally for a track alignment on this car with a stock size tire stagger, you would be in the -3 to-4 camber up front, and -2.5-3 camber in the rear. But the range is also tire sensitive, as not all tires want to be run at the same camber angle and air pressure to get the most out of them. If you want this car to perform to its higher standards on the street and track, for adhesion as well as handling precision/predictability, you really should be shopping for extreme summer category tires. Z2/Starspec would be a great recommendation.

Originally Posted by yokevlee

s2000junky could u elaborate on how our cars are so sensitive to tire construction (sidewall stiffness)? more so than most other sports cars i'm assuming is what you're saying? this reminded me of that time when an experienced track guy drove my car and commented on how my ad08R's have too soft of tire sidewalls for my s2000 set up. (i have a CR w/ tein SRC). but to be honest i can't really feel it when i drive it hard. thanks in advance!

Originally Posted by yokevlee

s2000junky could u elaborate on how our cars are so sensitive to tire construction (sidewall stiffness)? more so than most other sports cars i'm assuming is what you're saying? this reminded me of that time when an experienced track guy drove my car and commented on how my ad08R's have too soft of tire sidewalls for my s2000 set up. (i have a CR w/ tein SRC). but to be honest i can't really feel it when i drive it hard. thanks in advance!