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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.

1,798 topics in this forum

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

    By Greg G.,
    • 6 replies
    • 22.2k views

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

    By Greg G.,
    • 0 replies
    • 18.8k views

  3. NASA TT Event Schedule

    By Greg G.,
    • 0 replies
    • 8.3k views

  4. AVG HP Calculator Instructions

    By Roman V.,
    • 0 replies
    • 3.4k views

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

    By Roman V.,
    • 0 replies
    • 3k views

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

    By Roman V.,
    • 0 replies
    • 2.6k views

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

    By Greg G.,
    • 0 replies
    • 1.6k views

  8. 2023 Super Touring Rules (TT classing rules) are posted

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

  9. 2023 ST/TT Car Classification Form is Live

    By Roman V.,
    • 0 replies
    • 1.3k views

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

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

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

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

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

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

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

    By Greg G.,
    • 0 replies
    • 258 views

  14. Why isn't the FRS killing TTD? 1 2 3 4 17

    By Varkwso,
    • 403 replies
    • 110.4k views

  15. Pie in the sky rule change requests - 2012 1 2 3 4 31

    By jason,
    • 764 replies
    • 82.7k views

  16. New OEM Hardtop Rule G 2 1 2 3 4 19

    By dans2k,
    • 468 replies
    • 66.3k views

  17. 2013 Rules Consideration--Bump of +13 Point Tire Category 1 2 3 4 17

    By Greg G.,
    • 423 replies
    • 61k views

  18. BMW GTR e36 Build TT1 1 2 3 4

    By BigHungry,
    • 84 replies
    • 50k views

  19. 2015 Proposed Tire Rules (TTB-TTF) 1 2 3 4 5

    By Greg G.,
    • 114 replies
    • 41.1k views

  20. TTF (and PTF) in 2012 At Nationals. Who is in? 1 2 3 4 5

    By CWeber,
    • 119 replies
    • 37.8k views

  21. Why TT and not racing? 1 2 3 4 8

    By hagakure,
    • 175 replies
    • 36.7k views

  22. Hoosier A7s 1 2 3 4

    By PoBoyR6,
    • 75 replies
    • 35.7k views

  23. Decision on 255s... single out one tire? Why? 1 2 3 4 9

    By Cobra4B,
    • 200 replies
    • 35.1k views

  24. TT3 1 2 3 4 5

    By jcindric,
    • 113 replies
    • 35k views

  25. TTB - Car choice - C5 vs. Evo 1 2 3 4 9

    By Bnjmn,
    • 214 replies
    • 34.4k views
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