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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.

1,798 topics in this forum

  1. Looks like i might be leaving TT-D

    By Driven,
    • 1 reply
    • 1.4k views

  2. During the TT are there other cars on the track 1 2

    By Chuckster,
    • 30 replies
    • 7k views

  3. Special TT Weekend at Gingerman!!!!!!!!!!!!!!!!!

    By bigwrench,
    • 0 replies
    • 1.1k views

  4. How does the ACR option effect status

    By intruudir,
    • 1 reply
    • 1.3k views

  5. Re: TT Classification Rules--Neon ACR

    By Greg G.,
    • 6 replies
    • 3k views

  6. TT entry fee

    By loudes13,
    • 5 replies
    • 2.4k views

  7. New Norcal Time Trial Website!

    By Gumball,
    • 3 replies
    • 1.5k views

  8. Timing

    By Mafia,
    • 7 replies
    • 2.1k views

  9. Toyo Tire Deal for TT?

    By kaherbst,
    • 5 replies
    • 2.4k views

  10. TT Run Group Traffic

    By GAC,
    • 11 replies
    • 3.2k views

  11. What TT Class would I be in?

    By 350ZNV,
    • 3 replies
    • 2k views

  12. 2005 Blueridge Hillclimb video

    By svann,
    • 0 replies
    • 1.3k views

  13. Mods, Mods, Mods

    By GAC,
    • 4 replies
    • 2k views

  14. Tire size point system?

    By V8VENOM,
    • 17 replies
    • 4.5k views

  15. Norcal Time Trial Results from Thunderhill

    By Gumball,
    • 0 replies
    • 1.2k views

  16. Tire rule clarification

    By Neon2dmaX,
    • 21 replies
    • 4.8k views

  17. Rules clarification please - Timing

    By mitchntx,
    • 8 replies
    • 2.9k views

  18. Modification ?'s after fallout

    By Pat L.,
    • 6 replies
    • 2.1k views

  19. Heading North to Thunderhill this weekend from San Diego

    By Greg G.,
    • 3 replies
    • 1.5k views

  20. CalSpeedway InCar Video - 53 TTD (yellow CRX)

    By Driven,
    • 6 replies
    • 2.5k views

  21. Where to buy Transponder

    By John Graber,
    • 8 replies
    • 2.9k views

  22. Buttonwillow 9-10 results?

    By Shawn M.,
    • 6 replies
    • 2.2k views

  23. Couple questions re: rules clarification

    By Neon2dmaX,
    • 5 replies
    • 1.8k views

  24. Another Buttonwillow video inside 72 Corvette

    By Wanna-Be Racing,
    • 4 replies
    • 1.8k views

  25. Question about series

    By Mafia,
    • 4 replies
    • 1.8k views
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