Competition Series

Forums

1. 944 Spec

   Series for Porsche 944s

   26.3k

   posts

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   • Mechanic/Driver looking to join a Team!
   • By Kimothy, September 19
2. American Iron Racing

   American Iron : AI, AIX & Spec Iron

   25.3k

   posts

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   • 2023 RCR's for the 2024 Season
   • By CTSVR, July 24
3. CMC

   Camaro Mustang Challenge

   36k

   posts

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   • LT1 restrictor plates
   • By maddoggy71, August 10
4. Enduro

   General Enduro Racing Discussion about the 25 Hour, WERC and Regional Endurance Series

   2.7k

   posts

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   • Seeking Drives for the 2023 25-Hour Race of Thunderhill
   • By Rich_Doteki, April 27
5. German Touring Series (GTS)

   German Touring Series

   9.1k

   posts

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   • Audi SPEC 3 Series?
   • By daytonars4, Tuesday at 01:52 AM
6. HC

   HPD Honda Challenge

   15.8k

   posts

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   • Civic coil springs
   • By Desperate, December 29, 2022
7. NASA Prototype (NP01)

   The NASA Prototype (NP01) car and information about the class.

   471

   posts

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   • NP01 arrive & drive
   • By rikgray, June 6, 2022
8. ST/SU

   Super Touring and Super Unlimited

   9.7k

   posts

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   • Please remove 315 Rule in ST/TT2
   • By Greg G., 19 hours ago
9. SM

   Spec Miata Challenge

   601

   posts

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   • Spec Miata for Sale
   • By bpmguy1, August 29, 2022
10. Spec Z

    Spec Z Racing

    1.3k

    posts

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    • 295 tires
    • By Aeneas137, June 9, 2022
11. Spec E30

    Spec E30 Racing

    50

    posts

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    • Frequently Asked Questions about the new Spec E30 Maxxis Tire Program
    • By Brett B., February 2, 2022
12. Spec3

    The forum for Spec3 Racing: BMW E36 325

    1.1k

    posts

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    • The Cart Before the Horse: My Spec3 Build
    • By TaylorGoesFast, August 31
13. Spec E46

    Spec E46 Racing

    26

    posts

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    • Pro-built Spec E46
    • By Grega555, January 20
14. Teen Mazda Challenge

    The NASA Teen Mazda Challenge is a unique program designed specifically for young drivers coming out of karting and entering sports car racing.

    8

    posts

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    • Impossible to set up a login
    • By Michael MX5, November 26, 2022
15. 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.

    27.1k

    posts

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    • Nitrous?
    • By Anderson Motorsports, 19 hours ago
16. Team Racing Endurance Challenge (TREC)

    The NASA TREC series is an Endurance Racing series devoted to fun, low-cost competition. It provides for a low barrier of entry to NASA competition, making it very easy to get started in racing. 

    126

    posts

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    • TREC Hot to Trot WSIR Aug 26
    • By Shooting Brake, August 31