ST/SU

753 topics in this forum

1. ST6 Spoiler vs Wing (6.1.5 ST6)

   By DavidSinger, October 2, 2019
   • 9 replies
   • 1.7k views
   • 
   • Magus2727
   • November 17, 2019

2. The History of tire width vs weight and the weight modifier in ST

   By CRallo, November 6, 2019
   • 0 replies
   • 744 views
   • 
   • CRallo
   • November 6, 2019

3. NON-DOT Tire Factor Change for ST3 for 2020 ???

   By Al36rx7, October 21, 2019
   • 2 replies
   • 1.1k views
   • 
   • Al36rx7
   • October 25, 2019

4. "Autocross Tires" not allowed - How do I identify these?

   By MXDave813s, July 25, 2019
   • 16 replies
   • 2.1k views
   • 
   • DavidSinger
   • October 15, 2019

5. Roll cage mounting points question

   By Tansar_Motorsports, September 9, 2019
   • 1 reply
   • 1.1k views
   • 
   • Tansar_Motorsports
   • September 9, 2019

6. Technical Bulletin--Appendix B--OEM Aero 3-25-17

   By Greg G., March 25, 2017
   • 4 replies
   • 5.2k views
   • 
   • Greg G.
   • August 26, 2019

7. TT Classification for Non-US Production cars

   By uuayala, August 20, 2019
   • 2 replies
   • 941 views
   • 
   • uuayala
   • August 22, 2019

8. ST Rules Revision - August 1, 2019

   By Greg G., August 18, 2019
   • 0 replies
   • 1.9k views
   • 
   • Greg G.
   • August 18, 2019

9. Toyo R888R

   By Greyout81, April 7, 2019
   • 3 replies
   • 1.3k views
   • 
   • Greg G.
   • August 18, 2019

10. ST4 Tire tutorial

    By esr, December 10, 2016
    • 18 replies
    • 12.8k views
    • 
    • mmmbrap
    • August 17, 2019

11. ST4 sequential transmission

    By esr, July 18, 2019
    • 2 replies
    • 1.2k views
    • 
    • esr
    • August 16, 2019

12. flat floor penalty

    By jonesy79, August 5, 2019
    • 3 replies
    • 1.2k views
    • 
    • Greg G.
    • August 15, 2019

13. Any one interesting in splitting drive thru Garage Aug MidO

    By JoeMag, August 5, 2019
    • 0 replies
    • 732 views
    • 
    • JoeMag
    • August 5, 2019

14. ST5-6 Track Width Rule 6.1.9.8

    By Magus2727, July 25, 2019
    • 2 replies
    • 2.1k views
    • 
    • Magus2727
    • July 26, 2019

15. Mustang Suspension Tuning Help

    By Rapidroy10, July 23, 2019
    • 1 reply
    • 843 views
    • 
    • Roman V.
    • July 26, 2019

16. Panoz eligibility and Mod factor discussion

    By Tansar_Motorsports, June 24, 2019
    • 4 replies
    • 951 views
    • 
    • Tansar_Motorsports
    • July 23, 2019

17. Low HP tube chassis car in ST4

    By funcup, June 26, 2019
    • 1 reply
    • 896 views
    • 
    • CRallo
    • July 23, 2019

18. Chop Top Safety Requirements

    By mdotmurphy, July 5, 2019
    • 0 replies
    • 822 views
    • 
    • mdotmurphy
    • July 5, 2019

19. Rule Change discussion: Non-DOT Approved Tires in ST3/TT3 1 2

    By Greg G., April 11, 2019
    • 27 replies
    • 5.2k views
    • 
    • Greg G.
    • June 17, 2019

20. Technical Bulletin: Hood Vent revised rule 6-17-19

    By Greg G., April 26, 2019
    • 2 replies
    • 2.3k views
    • 
    • Greg G.
    • June 17, 2019

21. Gurney Flap Limits

    By seanshepard1, May 25, 2019
    • 2 replies
    • 944 views
    • 
    • seanshepard
    • June 16, 2019

22. End links in ST6?

    By 1jeffcat, May 29, 2019
    • 2 replies
    • 971 views
    • 
    • 1jeffcat
    • May 29, 2019

23. April '19 ST Rules Revision Highlights 1 2 3 4

    By Greg G., April 25, 2019
    • 78 replies
    • 13.6k views
    • 
    • jimgood
    • May 29, 2019

24. Platforms for ST4?

    By Mister Monaco, May 16, 2019
    • 4 replies
    • 1.4k views
    • 
    • Tansar_Motorsports
    • May 17, 2019

25. ST4 Torsion Bar Suspension Conversion Legality

    By Tansar_Motorsports, May 7, 2019
    • 1 reply
    • 782 views
    • 
    • Greg G.
    • May 15, 2019