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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. progression

    By 924sowner,
    • 8 replies
    • 2.4k views

  2. Need help with engine swap classing

    By phoenixR34,
    • 2 replies
    • 1.1k views

  3. TT RULES REVISION RELEASED 4-17-06 v. 3.9.6

    By Greg G.,
    • 0 replies
    • 1.4k views

  4. TT Crossfires ?

    By HDDP/CROSSFIRE,
    • 2 replies
    • 1.2k views

  5. FREE TRACK TIME AVAILABLE !!!!!

    By Dave Royce,
    • 0 replies
    • 1.8k views

  6. So when is Mid-Ohio school going to allow req for nationals?

    By Red Tornado,
    • 2 replies
    • 1.2k views

  7. Is anyone else signing up for Nationals besides us TT'ers

    By Red Tornado,
    • 1 reply
    • 1k views

  8. NorCal Permaent Number

    By BlkStook,
    • 7 replies
    • 1.5k views

  9. Equivalent NASA Class ? ? ?

    By MVT,
    • 3 replies
    • 1.4k views

  10. Carb ?

    By firehawkclone,
    • 1 reply
    • 1.1k views

  11. TT Podium Finishers

    By Racerboy,
    • 9 replies
    • 2.3k views

  12. Classification question

    By Chris F,
    • 5 replies
    • 2.3k views

  13. Russ Warr???

    By TTA2BE,
    • 3 replies
    • 1.3k views

  14. TTR requirements

    By commotoed,
    • 6 replies
    • 1.7k views

  15. Upclassing and rules clarification needed

    By RX-Heven,
    • 1 reply
    • 1.2k views

  16. SUPER STREET TIME ATTACK Qualifier--MAY 6-7 PIR

    By Greg G.,
    • 1 reply
    • 1.4k views

  17. Stouter Clutch Question

    By GAC,
    • 2 replies
    • 1.3k views

  18. How Many in Each Class for Buttonwillow: 4/8-4/9? 1 2

    By GAC,
    • 31 replies
    • 5.1k views

  19. Stupid n00b Classing ?s...

    By Crack Monkey,
    • 5 replies
    • 1.9k views

  20. Holy Chit, Batman! Have you....

    By Falcon,
    • 18 replies
    • 4.4k views

  21. GTO??

    By Howie,
    • 1 reply
    • 1.4k views

  22. Southeast Results...news article on Road Atlanta on website

    By Red Tornado,
    • 2 replies
    • 1.8k views

  23. Anyone class a BMW E30 M3 lately?

    By Jimmypetm3,
    • 3 replies
    • 2.2k views

  24. Pat L's Sport Compact Car write up.

    By RedRicer,
    • 7 replies
    • 2.6k views

  25. Points for staggered tread width??

    By Alfa Georgia,
    • 2 replies
    • 1.4k views
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