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Time Trial

NASA TT utilizes a car classification system that is easy to understand, and gives HPDE 4 drivers a taste of competition by allowing them to compete for top lap times, in advanced, open passing run sessions, against similarly prepared cars for awards, prizes, and recognition.

1,803 topics in this forum

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

    By Greg G.,
    • 2 replies
    • 1.2k views
    • Greg G.
    • Greg G.

  2. Technical Bulletin: TTEV Approved Vehicles - 4-11-23

    By Greg G.,
    • 0 replies
    • 1.8k views
    • Greg G.
    • Greg G.

  3. Technical Bulletin: Yokohama Advan Neova AD09 - Now +1.0 - 2-14-23

    By Greg G.,
    • 0 replies
    • 1.4k views
    • Greg G.
    • Greg G.

  4. Technical Bulletin: Continental Extreme Contact Force & Hankook Ventus RS4 - Now +1.6 - 1-19-23

    By Greg G.,
    • 0 replies
    • 1.4k views
    • Greg G.
    • Greg G.

  5. 2023 Super Touring Rules (TT classing rules) are posted

    By Greg G.,
    • 5 replies
    • 1.7k views
    • Roman V.
    • Roman V.

  6. 2023 ST/TT Car Classification Form is Live

    By Roman V.,
    • 0 replies
    • 1.6k views
    • Roman V.
    • Roman V.

  7. Technical Bulletin: Passing Under Yellow Flag Conditions--All TT 5-20-22

    By Greg G.,
    • 0 replies
    • 1.4k views
    • Greg G.
    • Greg G.

  8. AVG HP Calculator Instructions

    By Roman V.,
    • 0 replies
    • 3.6k views
    • Roman V.
    • Roman V.

  9. Can I Take My Convertible Vehicle on a Race Track in HPDE or Time Trial Groups?

    By Roman V.,
    • 0 replies
    • 2.9k views
    • Roman V.
    • Roman V.

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

    By Roman V.,
    • 0 replies
    • 3.1k views
    • Roman V.
    • Roman V.

  11. NASA TT Event Schedule

    By Greg G.,
    • 0 replies
    • 8.5k views
    • Greg G.
    • Greg G.

  12. Links:TT License Application,Classification Forms,Rules,more

    By Greg G.,
    • 6 replies
    • 22.6k views
    • Tcal
    • Tcal

  13. Regional TT Director List--updated 4-2-24

    By Greg G.,
    • 0 replies
    • 19.1k views
    • Greg G.
    • Greg G.

  14. Additional Mod Factor for Specific Models/Items (ST5-6/TT5-6)

    By KirkSpitt,
    • 0 replies
    • 154 views
    • KirkSpitt
    • KirkSpitt

  15. Chassis prep -- removing unnecessary small brackets

    By Steven Snyder,
    • 1 reply
    • 905 views
    • Greg G.
    • Greg G.

  16. Changing tires within same category within same day?

    By Heavy85,
    • 3 replies
    • 307 views
    • Greg G.
    • Greg G.

  17. TT online form

    By Austin1112,
    • 1 reply
    • 204 views
    • Greg G.
    • Greg G.

  18. NEW TOYO R Classification.

    By silents1ick,
    • 1 reply
    • 431 views
    • Greg G.
    • Greg G.

  19. 2024 rule proposal: force slow cars out of TTU

    By Tansar_Motorsports,
    • 3 replies
    • 649 views
    • silents1ick
    • silents1ick

  20. Nationals, Fire systems required?

    By Carlos Mejia,
    • 1 reply
    • 432 views
    • TimRoberts
    • TimRoberts

  21. 5-point harness

    By cwreese,
    • 1 reply
    • 428 views
    • dwesterwick
    • dwesterwick

  22. 2022 TT5/6 Scion FRS Build

    By TT686,
    • 6 replies
    • 1.2k views
    • Greg G.
    • Greg G.

  23. Major Issue getting new Vehicles Dyno'd!

    By WillyDaP,
    • 3 replies
    • 351 views
    • WillyDaP
    • WillyDaP

  24. National ECU Question.

    By Carlos Mejia,
    • 2 replies
    • 367 views
    • Tansar_Motorsports
    • Tansar_Motorsports

  25. Looking towards 2024..

    By Anderson Motorsports,
    • 6 replies
    • 784 views
    • Anderson Motorsports
    • Anderson Motorsports
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