ST/SU

770 topics in this forum

1. Technical Bulletin 3-15-25 - Maxxis Victra VR-2 Classified as +1.0

   By Greg G., Saturday at 05:03 PM
   • 0 replies
   • 52 views
   • 
   • Greg G.
   • Saturday at 05:03 PM

2. Technical Bulletin 1-26-25 - Hoosier RCES Classified as +1.0

   By Greg G., January 27
   • 0 replies
   • 323 views
   • 
   • Greg G.
   • January 27

3. Technical Bulletin 1-26-25 - GT and TTGT Are Available at all NASA Regional Events

   By Greg G., January 27
   • 0 replies
   • 85 views
   • 
   • Greg G.
   • January 27

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

   By Greg G., December 3, 2021
   • 9 replies
   • 3.7k views
   • 
   • Greg G.
   • September 28, 2023

5. Avg HP Calculator Instructions

   By Greg G., February 11, 2020
   • 13 replies
   • 5.9k views
   • 
   • Roman V.
   • January 12, 2023

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

   By Roman V., March 14, 2019
   • 0 replies
   • 14.5k views
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   • Roman V.
   • March 14, 2019

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

   By Greg G., May 1, 2014
   • 0 replies
   • 13.3k views
   • 
   • Greg G.
   • May 1, 2014

8. Provisional Car Classifications--updated 12-14-24

   By Greg G., August 2, 2012
   • 0 replies
   • 12.9k views
   • 
   • Greg G.
   • August 2, 2012

9. ST Regional Leader List -- updated 1-30-25

   By Greg G., February 27, 2012
   • 0 replies
   • 10.4k views
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   • Greg G.
   • February 27, 2012

10. Vitour P1 tire modifier for TT

    By rsotak, March 3
    • 1 reply
    • 81 views
    • 
    • Greg G.
    • Saturday at 05:10 PM

11. 2025 Tire mod factors?

    By rsotak, December 6, 2024
    • 3 replies
    • 368 views
    • 
    • Greg G.
    • December 17, 2024

12. Toyo Proxies R Tire Mod Factor?

    By TimRoberts, May 9, 2024
    • 6 replies
    • 1.1k views
    • 
    • Greg G.
    • December 14, 2024

13. Rule proposal: brake mod factor in ST5 and ST6

    By skanev, September 16, 2024
    • 2 replies
    • 465 views
    • 
    • Greg G.
    • October 23, 2024

14. Are LSDs legal in ST6

    By b16vtek, October 14, 2024
    • 1 reply
    • 208 views
    • 
    • Roman V.
    • October 15, 2024

15. New and need help: How to classify my factory five 818r

    By altitude7200, September 26, 2024
    • 2 replies
    • 776 views
    • 
    • Brett B.
    • October 2, 2024

16. Technical Bulletin 4-8-24 - Super Unlimited split to SU and GT at the 2024 NASA Championships

    By Greg G., April 8, 2024
    • 2 replies
    • 1.3k views
    • 
    • Greg G.
    • August 19, 2024

17. 6.1.9 Line 4 Camber Arms

    By weste46, August 5, 2024
    • 2 replies
    • 445 views
    • 
    • Greg G.
    • August 9, 2024

18. Question on flares

    By NorcalTT, August 2, 2024
    • 1 reply
    • 379 views
    • 
    • Greg G.
    • August 3, 2024

19. SU aero rule clarification

    By Deude_Mann, June 5, 2024
    • 1 reply
    • 569 views
    • 
    • Greg G.
    • June 22, 2024

20. SU with minimal aero

    By brakesareforquitters, June 19, 2024
    • 4 replies
    • 323 views
    • 
    • brakesareforquitters
    • June 21, 2024

21. Removable driver/passenger windows for SU/GTU

    By Deude_Mann, April 18, 2024
    • 3 replies
    • 485 views
    • 
    • Greg G.
    • April 25, 2024

22. Consider removing 2023 ST1-4 rules from AWS

    By ssmith, April 15, 2024
    • 1 reply
    • 453 views
    • 
    • Roman V.
    • April 16, 2024

23. Brake Fans Legal for ST4?

    By lemonsracer, March 21, 2024
    • 3 replies
    • 429 views
    • 
    • Brett B.
    • April 1, 2024

24. 2023 Proposed ST Rules Revisions--Comment Period through 11-20-22 1 2 3 4 9

    By Greg G., November 17, 2022
    • 217 replies
    • 42k views
    • 
    • Tansar_Motorsports
    • March 6, 2024

25. What constitutes a 'rocker'? ST legality question

    By Cone Eater, October 28, 2023
    • 1 reply
    • 591 views
    • 
    • Greg G.
    • November 2, 2023