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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.

1,807 topics in this forum

  1. Oil Accumulator points?

    By Fr3AkAzOiD,
    • 5 replies
    • 5k views
    • Greg G.
    • Greg G.

  2. can an 05-07 sti be competitive in tt4?

    By aaronsti,
    • 16 replies
    • 9.2k views
    • daytonars4
    • daytonars4

  3. Greg, Can I get a classing for 2017 Mini Cooper S

    By Revolution Mini,
    • 15 replies
    • 9.9k views
    • cadmad
    • cadmad

  4. rear wing question

    By aaronsti,
    • 0 replies
    • 2.9k views
    • aaronsti
    • aaronsti

  5. Pro Challenge for TT4

    By Z06phile,
    • 0 replies
    • 2.9k views
    • Z06phile
    • Z06phile

  6. newbie - new car decision

    By thibbert,
    • 1 reply
    • 3.7k views
    • hufflepuff
    • hufflepuff

  7. Fire Safety

    By Marshall M.,
    • 1 reply
    • 3.8k views
    • Marshall M.
    • Marshall M.

  8. question about modification factor

    By aaronsti,
    • 1 reply
    • 3.3k views
    • ndogg
    • ndogg

  9. HPDE to TT - B16 CRX & Other Hondas

    By ZeroForceMember,
    • 5 replies
    • 4.4k views
    • Z06phile
    • Z06phile

  10. Path to Nasa, How do I get started

    By Canyonfive,
    • 8 replies
    • 5.2k views
    • AZELISE
    • AZELISE

  11. Getting started in NASA TT

    By Canyonfive,
    • 2 replies
    • 3.7k views
    • geeveepee
    • geeveepee

  12. TT Classification Form Submission

    By dsc off,
    • 1 reply
    • 3k views
    • Darren D.
    • Darren D.

  13. +2 End Link rule?

    By 1jeffcat,
    • 7 replies
    • 5.2k views
    • 1jeffcat
    • 1jeffcat

  14. E46 splitter rule clarification

    By int2str,
    • 10 replies
    • 7.9k views
    • Greg G.
    • Greg G.

  15. Spec Racer Ford for TT4 rules questions

    By Tansar_Motorsports,
    • 6 replies
    • 5.8k views
    • Grintch
    • Grintch

  16. Help getting my car classified e36 328is

    By mahernan,
    • 1 reply
    • 3.1k views
    • AZELISE
    • AZELISE

  17. Question about rules

    By 1jeffcat,
    • 2 replies
    • 3.8k views
    • 1jeffcat
    • 1jeffcat

  18. Technical Bulletin--Appendix D--OEM Aero 3-25-17

    By Greg G.,
    • 0 replies
    • 2.6k views
    • Greg G.
    • Greg G.

  19. 2017 Calculator Spreadsheet

    By dsc off,
    • 9 replies
    • 6.4k views
    • Greg G.
    • Greg G.

  20. Does anyone/is it possible to run a oval track car in TT?

    By DavidNJ,
    • 9 replies
    • 5.8k views
    • Greg G.
    • Greg G.

  21. Technical Bulletin--Ford Mustang ST4/TT4 ABS 1-20-17

    By Greg G.,
    • 0 replies
    • 3k views
    • Greg G.
    • Greg G.

  22. Define "ABS"

    By int2str,
    • 3 replies
    • 3.5k views
    • Greg G.
    • Greg G.

  23. Tire question

    By bionicbelly,
    • 3 replies
    • 3.3k views
    • Snowmants
    • Snowmants

  24. Re-classing E46 M3 - TTB -> TT4?

    By int2str,
    • 18 replies
    • 12k views
    • 427R
    • 427R

  25. 2017 Rules?

    By mcmmotorsports,
    • 3 replies
    • 4k views
    • int2str
    • int2str
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