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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.


1737 topics in this forum

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

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  2. Superformance GT40 1 2

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  3. TTU/street legal cars?? Seperate group idea 1 2

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

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  5. TT classification for 2001 Honda S2000 1 2 3

    • 61 replies
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  6. Is today the big day? 1 2 3 4

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  7. Starting out in TTB- type of car 1 2

    • 28 replies
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  8. BFG Rival S points = same as Rival?

    • 12 replies
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  9. How TT Rules Are Written/Revised....

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  10. Probly a newb question on Aero

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  11. Cool Down Laps and Mechanical Issues 1 2

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  12. The TT On-line Calculator Lives Again!!! 1 2

    • 42 replies
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  13. OEM hardtop rule (s2000)

    • 15 replies
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  14. 2 q's on the 2007 rules 1 2 3

    • 58 replies
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  15. Classing and points

    • 17 replies
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  16. 2007 Exige S Competitive in TTA? 1 2 3

    • 54 replies
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