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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.

1,808 topics in this forum

  1. Down classing vs up classing

    By blackdbl0si,
    • 1 reply
    • 3.2k views
    • Mike W.
    • Mike W.

  2. Techinical Bulletin--Hoosier DOT Wet Tires 4-28-18

    By Greg G.,
    • 0 replies
    • 2.4k views
    • Greg G.
    • Greg G.

  3. TT gray area: 91 Miata with 1.8 swap

    By blackdbl0si,
    • 1 reply
    • 2.4k views
    • Greg G.
    • Greg G.

  4. NASA 2018 Race/TT Car Annual Inspection

    By zajac,
    • 1 reply
    • 2.2k views
    • getfast
    • getfast

  5. Techinical Bulletin--NSW vs Listed Size ST1-4/TT1-4 3-12-18

    By Greg G.,
    • 0 replies
    • 2.4k views
    • Greg G.
    • Greg G.

  6. Looking to get into time trial racing - questions

    By TMF,
    • 5 replies
    • 3.4k views
    • cadmad
    • cadmad

  7. NASA 2018 ST5 Rules Released 11-29-17

    By Greg G.,
    • 22 replies
    • 9.7k views
    • cadmad
    • cadmad

  8. NASA TT Classification - How does classing work?

    By weenrock,
    • 1 reply
    • 3.1k views
    • Greg G.
    • Greg G.

  9. TTD for 2018

    By lutfy,
    • 3 replies
    • 3.7k views
    • TurboLS
    • TurboLS

  10. How prepared are most TT cars?

    By Your_Drunkle,
    • 4 replies
    • 2.7k views
    • Your_Drunkle
    • Your_Drunkle

  11. Who’s running TT5 this year?

    By truegearhead,
    • 1 reply
    • 2.7k views
    • dsc off
    • dsc off

  12. TT5: Hood Venting

    By truegearhead,
    • 4 replies
    • 3.2k views
    • truegearhead
    • truegearhead

  13. 2018 PT Rules posted

    By Greg G.,
    • 0 replies
    • 3.1k views
    • Greg G.
    • Greg G.

  14. Anyone else still waiting to get valid working HAWK Codes?

    By CWeber,
    • 9 replies
    • 3.5k views
    • Greg G.
    • Greg G.

  15. Application of Min Comp Weight

    By dsc off,
    • 1 reply
    • 2.4k views
    • Greg G.
    • Greg G.

  16. 2018 ST/TT Car Classification Form Now Online! - 1-12-18

    By Greg G.,
    • 2 replies
    • 3.3k views
    • Clavette
    • Clavette

  17. Ballast

    By adprescott,
    • 15 replies
    • 7.3k views
    • drivinhardz06
    • drivinhardz06

  18. NASA 2018 ST1-4 & SU Rules Released 11-29-17

    By Greg G.,
    • 6 replies
    • 5.1k views
    • Clavette
    • Clavette

  19. PTC/TTC & PTD/TTD Update for '18

    By Greg G.,
    • 2 replies
    • 5k views
    • aabatteries
    • aabatteries

  20. 2nd Track Car Decision

    By Bcoffin23,
    • 4 replies
    • 5.5k views
    • TurboShortBus
    • TurboShortBus

  21. H4 Setup in Time Trial

    By 10dsbrennan,
    • 1 reply
    • 3.3k views
    • AZELISE
    • AZELISE

  22. Proposed changes for '18 for upper level classes

    By Greg G.,
    • 4 replies
    • 4.3k views
    • TWI
    • TWI

  23. Replacement Parts Original vs OEM Replacements

    By rough68fish,
    • 2 replies
    • 3.2k views
    • rough68fish
    • rough68fish

  24. S2000 time trial classing?

    By outlawevans,
    • 4 replies
    • 4.5k views
    • kpearson
    • kpearson

  25. TTC Entries for 2017 Western States Championships

    By djqd36,
    • 1 reply
    • 3k views
    • djqd36
    • djqd36
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