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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.


1753 topics in this forum

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  1. 2022 TT Rules Release Today

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  2. 2021 ST/TT Car Classification Form

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  3. AVG HP Calculator Instructions

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  4. NASA TT Event Schedule

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  5. Regional TT Director List--updated 11-10-21

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  6. 2022 TT5/6 Scion FRS Build

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  7. Transmission Tunnel Modification Clarification

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  8. Baby Grand

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  9. 2022 ST/TT Car Classification Calculator

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  10. Rule Clarification ?

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  11. TT/ST Hit for Transmissions - Revision Needed

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  12. Tire Size (section width) +/- PWR Review

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  13. Tire size question for TT4

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  14. 2022 Rule Changes

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  15. TT4 questions for a 1998 Mustang GT

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