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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.


1727 topics in this forum

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

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    • 1 reply
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  2. TTD for 2018

    • 3 replies
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  3. How prepared are most TT cars?

    • 4 replies
    • 1.9k views
  4. Who’s running TT5 this year?

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  5. TT5: Hood Venting

    • 4 replies
    • 2.3k views
  6. 2018 PT Rules posted

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  7. Application of Min Comp Weight

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  8. Ballast

    • 15 replies
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  9. PTC/TTC & PTD/TTD Update for '18

    • 2 replies
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  10. 2nd Track Car Decision

    • 4 replies
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  11. H4 Setup in Time Trial

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  12. Replacement Parts Original vs OEM Replacements

    • 2 replies
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  13. S2000 time trial classing?

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    • 1 reply
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  14. Oil Accumulator points?

    • 5 replies
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    • 16 replies
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  15. Greg, Can I get a classing for 2017 Mini Cooper S

    • 15 replies
    • 8.6k views
  16. rear wing question

    • 0 replies
    • 2.2k views
  17. Pro Challenge for TT4

    • 0 replies
    • 2.2k views
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