ST/SU

711 topics in this forum

1. Official Tire Submission Thread for Tire Model Consideration for the +1.0 and +1.6 Mod Factor Groups

   By Greg G., December 3, 2021
   • 7 replies
   • 729 views
   • 
   • Ale Sensoli
   • January 10

2. 2022 ST Rules Release Today! 1 2 3

   By Greg G., December 2, 2021
   • 66 replies
   • 3.8k views
   • 
   • Roman V.
   • January 8

3. 2022 ST/TT Car Classification Form is Live

   By Roman V., January 6
   • 0 replies
   • 410 views
   • 
   • Roman V.
   • January 6

4. Technical Bulletin: Goodyear DOT Radial RCMD - Provisional Classing as "Autocross" for ST4-6-- 6-10-21

   By Greg G., June 11, 2021
   • 7 replies
   • 1.3k views
   • 
   • mrgsquared
   • December 5, 2021

5. Avg HP Calculator Instructions

   By Greg G., February 11, 2020
   • 4 replies
   • 3.5k views
   • 
   • Greg G.
   • September 26, 2021

6. How To - ST/TT Submission - Edit Link Request

   By Roman V., March 14, 2019
   • 0 replies
   • 5.8k views
   • 
   • Roman V.
   • March 14, 2019

7. ST Links for Website, Rules, Forms, Calculators

   By Greg G., May 1, 2014
   • 0 replies
   • 12.2k views
   • 
   • Greg G.
   • May 1, 2014

8. Provisional Car Classifications--updated 1-16-22

   By Greg G., August 2, 2012
   • 0 replies
   • 10.9k views
   • 
   • Greg G.
   • August 2, 2012

9. ST Regional Leader List -- updated 4-23-21

   By Greg G., February 27, 2012
   • 0 replies
   • 9k views
   • 
   • Greg G.
   • February 27, 2012

10. Question on Lexan Thickness and OEM Door bars

    By Magus2727, December 29, 2021
    • 2 replies
    • 107 views
    • 
    • Hank P.
    • 19 hours ago

11. 2021 Rules Time--How about no changes? 1 2

    By Greg G., September 11, 2020
    • 30 replies
    • 4.8k views
    • 
    • daytonars4
    • 21 hours ago

12. The “Sorta” Non-Production Vehicles?

    By Racerwong, October 4, 2021
    • 22 replies
    • 641 views
    • 
    • CeeDubb
    • Friday at 01:06 AM

13. 2022 ST/TT Car Classification Calculator Only

    By Roman V., December 7, 2021
    • 6 replies
    • 1.1k views
    • 
    • Roman V.
    • December 8, 2021

14. 2021 ST/TT Car Classification Form

    By Roman V., January 5, 2021
    • 12 replies
    • 2.9k views
    • 
    • Greg G.
    • December 8, 2021

15. 2022 rules period?

    By tcdesign, November 1, 2021
    • 10 replies
    • 840 views
    • 
    • Greg G.
    • December 2, 2021

16. ST4 splitter and air dam question

    By ssmith, April 30, 2020
    • 3 replies
    • 853 views
    • 
    • Greg G.
    • November 10, 2021

17. Bug in ST4 compliance calculator

    By ssmith, October 8, 2021
    • 1 reply
    • 192 views
    • 
    • Greg G.
    • November 10, 2021

18. IMSA Prototypes

    By hansbliss99, September 21, 2021
    • 2 replies
    • 458 views
    • 
    • davidfarmer
    • October 26, 2021

19. ST5/TT5 Suspension Mod Factor question

    By TimRoberts, October 15, 2021
    • 5 replies
    • 238 views
    • 
    • TimRoberts
    • October 19, 2021

20. ST6 Miata's need to move to ST5

    By travis77, March 8, 2021
    • 6 replies
    • 848 views
    • 
    • 944buzz
    • September 11, 2021

21. Acura Integra GSR in ST6 Eligibility using B16 head and Intake?

    By BlackWidowRacing, August 18, 2021
    • 4 replies
    • 271 views
    • 
    • Greg G.
    • August 24, 2021

22. ST5 Modified Front Bumper rule clarification

    By Tansar_Motorsports, July 26, 2021
    • 2 replies
    • 250 views
    • 
    • Tansar_Motorsports
    • July 27, 2021

23. Factory Fender Vents in ST4

    By jonvo, July 29, 2020
    • 8 replies
    • 987 views
    • 
    • Dunzcon
    • July 13, 2021

24. ST5 splitter question

    By MWC, April 26, 2021
    • 2 replies
    • 404 views
    • 
    • MWC
    • April 27, 2021

25. ST5 and 6 Subframe Modifications

    By CRallo, March 7, 2021
    • 1 reply
    • 423 views
    • 
    • CRallo
    • April 15, 2021