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

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

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

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

  4. 2023 ST/TT Car Classification Form is Live

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

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

    By Greg G.,
    • 0 replies
    • 122 views

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

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

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

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

  8. NASA TT Event Schedule

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

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

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

  10. AVG HP Calculator Instructions

    By Roman V.,
    • 0 replies
    • 3.4k 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. How To - ST/TT Submission - Edit Link Request

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

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

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

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

    By jason,
    • 764 replies
    • 82.6k views

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

    By dans2k,
    • 468 replies
    • 66.2k views

  16. 2013 Rules Consideration--Bump of +13 Point Tire Category 1 2 3 4 17

    By Greg G.,
    • 423 replies
    • 60.9k views

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

    By Varkwso,
    • 403 replies
    • 110.4k views

  18. AWD (no flaming please), and no mention of the Audi 1 2 3 4 10

    By heavychevy,
    • 233 replies
    • 24k views

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

    By Bnjmn,
    • 214 replies
    • 34.4k views

  20. 2009 Rules 1 2 3 4 9

    By Tom A,
    • 201 replies
    • 24k views

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

    By Cobra4B,
    • 200 replies
    • 35.1k views

  22. Has 2012 Nats AWD dyno been reserved yet? & TT rules nit 1 2 3 4 8

    By Bnjmn,
    • 177 replies
    • 33.5k views

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

    By hagakure,
    • 175 replies
    • 36.7k views

  24. TT -> 2011 rules speculation! (Joke Thread-outrageous ideas) 1 2 3 4 7

    By Markus,
    • 173 replies
    • 17.8k views

  25. TT3 - Is anyone planning on it? 1 2 3 4 7

    By sperkins,
    • 158 replies
    • 30k views
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