10 +50 with a 255 is pretty aggressive for the front, it needs a pretty major pull and camber to accommodate the front fenders if you actually want to drive or track the car without mishaps, it can be done though with some good work. I’m running +58 = 8mm less aggressive and it still wouldn’t suffice without pulling the fenders about 10mm. I don’t have to run -3 camber up front to drive the car though, which would otherwise suck. The rear on the other hand would fit no problem with just the standard fender roll and bumper tab relocate. But as the OP mentioned, running a square set up is more important for some reason then maximizing total available traction and proper tire width/rim mating width, so 245's it is.

 

 

S2000junky, I definitely made a mistake going square and I regret it. In the future I'm going to go wider in the rear. I just needed tires very badly and became impusive. The reason I remained square despite what some here here are suggesting is that my coilovers are rated to 11k front and 10k rear so I didnt want to upset the balance. I do not know much about this stuff, I must I guess admit further, as though the post didnt imply it. Any idea if 11k front and 10k rear would be an issue with say 245s in the front and 265s or 275s in the rear on these same wheels? Im going to post a picture of how it sits once I change the ride height to where I wont bang up the front fenders or scrape up my exhaust.

 

Are you tracking the car? What year is your S and does it still retain the factory sway bars?

 

Id absolutely love to and plan on autocrossing this summer. Its a 2000. I was actually in the process of reinstalling the rear swaybar when one of the endlink bolt's inner allen-key part stripped

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That year 00-01 specifically need a lot of rubber in the rear to be balanced when retaining the factory sways. I know this specifically running an 01 with 255/295 stagger. Even still I tend to oversteer first on a steady state sweeper at speed. Your spring rate stagger helps some, but not enough, im sure of it.

Of course not running a rear sway bar at all throws a wrench in any of this. You’re probably better off leaving it off with your current non stag tires, or run a lighter rear bar off an 02+ or even a Miata if you feel the need to help control some of the added body roll your getting without running anything.

 

hyper black RT5 17x10 +50 with 255/40/17 are going to be my next set of wheels.