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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. 2015 TT license renewal???

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  2. 2015 Rules Suggestions Thread 1 2 3

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  3. In what TT class is your Mk5/6 GTI?

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  4. State of TT - a "near-racer" perspective 1 2

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  5. Tire rules in TT123 - Any interest in expansion? 1 2 3

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  6. Is this considered a brake modification?

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  7. TT question regarding tire cost 1 2

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  8. TT and safety gear.

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  9. Anyone run TTF?

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  10. 2015 BMW F80 M3 Base Classification

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  11. Time Trial TTE: Points Advice

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  12. question about weight

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  13. Hondas getting shafted by E.9? 1 2

    • 35 replies
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  14. OEM-Style Hardtop for S2000. Points?

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  15. Setting up 2006 mustang GT for TTC? 1 2

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