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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.


1,795 topics in this forum

  1. +2 End Link rule?

    • 7 replies
    • 4.9k views
  2. E46 splitter rule clarification

    • 10 replies
    • 7.6k views
  3. Spec Racer Ford for TT4 rules questions

    • 6 replies
    • 5.4k views
  4. Help getting my car classified e36 328is

    • 1 reply
    • 3k views
  5. Question about rules

    • 2 replies
    • 3.7k views
    • 0 replies
    • 2.4k views
  6. 2017 Calculator Spreadsheet

    • 9 replies
    • 6.2k views
    • 9 replies
    • 5.6k views
    • 0 replies
    • 2.9k views
  7. Define "ABS"

    • 3 replies
    • 3.4k views
  8. Tire question

    • 3 replies
    • 3.2k views
  9. Re-classing E46 M3 - TTB -> TT4?

    • 18 replies
    • 11.5k views
  10. 2017 Rules?

    • 3 replies
    • 3.9k views
  11. weight ballast

    • 4 replies
    • 4.2k views
  12. point assessment question

    • 2 replies
    • 3.3k views
  13. E46 330i TTD

    • 6 replies
    • 7.2k views
  14. Can I Run TT2 and TT3 in the Same Event?

    • 2 replies
    • 3.9k views
  15. Stay in TTD/PTD or move to TTC/PTC??

    • 3 replies
    • 3.3k views
  16. Chevy SS classification

    • 0 replies
    • 2.3k views
  17. 2017 TTC rules?

    • 2 replies
    • 3.8k views
  18. Transponder Questions

    • 2 replies
    • 3.3k views
    • 14 replies
    • 10.4k views
  19. Continental Challenge EC-Dry tire?

    • 4 replies
    • 4.4k views
  20. points question

    • 3 replies
    • 4.1k views
  21. 2016 TT National Champions

    • 0 replies
    • 5.1k views
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