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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.

1,809 topics in this forum

  1. Technical Bulletin 3-15-25 - Maxxis Victra VR-2 Classified as +1.0

    By Greg G.,
    • 0 replies
    • 333 views
    • Greg G.
    • Greg G.

  2. Technical Bulletin 1-26-25 - Hoosier RCES Classified as +1.0

    By Greg G.,
    • 0 replies
    • 330 views
    • Greg G.
    • Greg G.

  3. Technical Bulletin 1-26-25 - GT and TTGT Are Available at all NASA Regional Events

    By Greg G.,
    • 0 replies
    • 109 views
    • Greg G.
    • Greg G.

  4. AVG HP Calculator Instructions

    By Roman V.,
    • 0 replies
    • 3.7k views
    • Roman V.
    • Roman V.

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

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

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

    By Roman V.,
    • 0 replies
    • 3.2k views
    • Roman V.
    • Roman V.

  7. NASA TT Event Schedule

    By Greg G.,
    • 0 replies
    • 8.6k views
    • Greg G.
    • Greg G.

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

    By Greg G.,
    • 6 replies
    • 22.8k views
    • Tcal
    • Tcal

  9. Regional TT Director List--updated 1-30-25

    By Greg G.,
    • 0 replies
    • 19.2k views
    • Greg G.
    • Greg G.

  10. Bar to protect oil pan

    By weenrock,
    • 1 reply
    • 96 views
    • Greg G.
    • Greg G.

  11. E36 with Euro S50 B30

    By Shooting Brake,
    • 0 replies
    • 96 views
    • Shooting Brake
    • Shooting Brake

  12. Dynojet Testing for the New Season

    By Dan S,
    • 0 replies
    • 235 views
    • Dan S
    • Dan S

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

    By KirkSpitt,
    • 1 reply
    • 328 views
    • Greg G.
    • Greg G.

  14. 2024 rule proposal: force slow cars out of TTU

    By Tansar_Motorsports,
    • 4 replies
    • 883 views
    • silents1ick
    • silents1ick

  15. Chassis prep -- removing unnecessary small brackets

    By Steven Snyder,
    • 1 reply
    • 1.1k views
    • Greg G.
    • Greg G.

  16. Changing tires within same category within same day?

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

  17. TT online form

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

  18. NEW TOYO R Classification.

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

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

    By Greg G.,
    • 2 replies
    • 1.3k views
    • Greg G.
    • Greg G.

  20. Nationals, Fire systems required?

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

  21. 5-point harness

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

  22. 2022 TT5/6 Scion FRS Build

    By TT686,
    • 6 replies
    • 1.4k views
    • Greg G.
    • Greg G.

  23. Major Issue getting new Vehicles Dyno'd!

    By WillyDaP,
    • 3 replies
    • 517 views
    • WillyDaP
    • WillyDaP

  24. National ECU Question.

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

  25. Looking towards 2024..

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