ST/SU

705 topics in this forum

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

   By Greg G., June 11
   • 4 replies
   • 914 views
   • 
   • Greg G.
   • Friday at 12:45 AM

2. 2021 ST/TT Car Classification Form

   By Roman V., January 5
   • 10 replies
   • 2.5k views
   • 
   • Roman V.
   • October 5

3. Avg HP Calculator Instructions

   By Greg G., February 11, 2020
   • 4 replies
   • 3.3k views
   • 
   • Greg G.
   • September 26

4. 2021 Rules Time--How about no changes? 1 2

   By Greg G., September 11, 2020
   • 27 replies
   • 3.7k views
   • 
   • ssmith
   • January 14

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

   By Roman V., March 14, 2019
   • 0 replies
   • 5.3k views
   • 
   • Roman V.
   • March 14, 2019

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

   By Greg G., May 1, 2014
   • 0 replies
   • 12.1k views
   • 
   • Greg G.
   • May 1, 2014

7. Provisional Car Classifications--updated 5-21-20

   By Greg G., August 2, 2012
   • 0 replies
   • 10.8k views
   • 
   • Greg G.
   • August 2, 2012

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

   By Greg G., February 27, 2012
   • 0 replies
   • 8.9k views
   • 
   • Greg G.
   • February 27, 2012

9. The “Sorta” Non-Production Vehicles?

   By Racerwong, October 4
   • 3 replies
   • 185 views
   • 
   • FandangoDrew
   • Thursday at 07:34 PM

10. ST5/TT5 Suspension Mod Factor question

    By TimRoberts, October 15
    • 5 replies
    • 96 views
    • 
    • TimRoberts
    • Tuesday at 03:32 PM

11. Bug in ST4 compliance calculator

    By ssmith, October 8
    • 0 replies
    • 73 views
    • 
    • ssmith
    • October 8

12. IMSA Prototypes

    By hansbliss99, September 21
    • 1 reply
    • 248 views
    • 
    • 1jeffcat
    • September 29

13. ST6 Miata's need to move to ST5

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

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

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

15. ST5 Modified Front Bumper rule clarification

    By Tansar_Motorsports, July 26
    • 2 replies
    • 171 views
    • 
    • Tansar_Motorsports
    • July 27

16. Factory Fender Vents in ST4

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

17. ST5 splitter question

    By MWC, April 26
    • 2 replies
    • 314 views
    • 
    • MWC
    • April 27

18. ST5 and 6 Subframe Modifications

    By CRallo, March 7
    • 1 reply
    • 345 views
    • 
    • CRallo
    • April 15

19. Modifying Hood for Engine Clearance?

    By CRallo, March 7
    • 1 reply
    • 277 views
    • 
    • CRallo
    • April 15

20. Wireless ECU devices in ST5?

    By Dave Harris, March 22
    • 3 replies
    • 423 views
    • 
    • Eric Jensen
    • March 29

21. ST5 Suspension Limitations

    By Shooting Brake, March 5
    • 3 replies
    • 288 views
    • 
    • Tansar_Motorsports
    • March 5

22. ST Subframe modifications

    By kartermdb, January 19
    • 2 replies
    • 392 views
    • 
    • CRallo
    • March 1

23. ST3 aero allowances

    By GHwerks, December 17, 2020
    • 6 replies
    • 725 views
    • 
    • davidfarmer
    • February 18

24. Question about ST4's ECU Rule

    By Tianheng, January 7
    • 1 reply
    • 381 views
    • 
    • NorcalTT
    • January 9

25. General ST rules question

    By fbirch, November 23, 2020
    • 6 replies
    • 667 views
    • 
    • TurboShortBus
    • December 16, 2020