Does anyone know where to get concise information regarding legal wheel/tire applications for the STR solo class? I want to upgrade but I have checked the SCCAs website and found that their latest regulations were updated back in 2009...just a link will do or if you have personally upgraded wheel/suspension for STR I would love to hear what you've discovered. Thanks

 

1) https://www.s2ki.com/s2000/topic/716...prep-resource/
2) 17x9+60(ish) and 255 tires

 

thanks bud

 

To be more precise, you are only limited to a 9 inch wide wheel, and any offset as long as you don't change the profile of your fender trying to make a wheel fit. The diameter of the wheel is not prescribed.

 

National Solo Rules, 2011 EDITION, Sports Car Club of America

 

Nice, thanks again guys. Any thoughts on setups? Im not going to run this car as a "track only" car, but wanna be competitive

 

There's 181 pages of discussion about STR builds/rules, a number of which a dual purpose street/track cars.

https://www.s2ki.com/s2000/topic/716...prep-resource/

^--- Here's the link to it for a second time in this thread.

 

And 255 or lower width with 140 treadwear or higher tires. Other than that you can do whatever you want.

If you want a very good track and autocross setup, the simple answer is get some 17x9 +60-63 wheels all around with some 255/40/17 tires, the hankook rs3 and dunlop star spec being the most popular at the moment.