Competition Series

Forums

1. 944 Spec

   Series for Porsche 944s

   26.2k

   posts

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   • 1987 924S Available in Charlotte, NC Area (944 Spec Car or HPDE)
   • By DASJ199, May 18
2. American Iron Racing

   American Iron : AI, AIX & Spec Iron

   25.3k

   posts

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   • Building first car… AI vs Camaro-Mustang challenge(?)
   • By Bigboydanny43, June 26
3. CMC

   Camaro Mustang Challenge

   36k

   posts

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   • CMC Hood rules?
   • By Bigboydanny43, June 23
4. Enduro

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

   2.7k

   posts

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   • Thunderhill 25: Anyone looking for an extra driver?
   • By garretlievens, May 26
5. German Touring Series (GTS)

   German Touring Series

   9.1k

   posts

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   • Rule Proposal - Open GTS to non-German marques
   • By mrgsquared, December 6, 2021
6. HC

   HPD Honda Challenge

   15.8k

   posts

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   • Adjustable Top Arms vs Adjustable Ball Joints
   • By SergioMarron, March 21
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
8. ST/SU

   Super Touring and Super Unlimited

   9.2k

   posts

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   • Nasa championship st4 rain tire options?
   • By Greg G., June 28
9. SM

   Spec Miata Challenge

   600

   posts

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   • WTB Spec Miata
   • By Greg Hayden, May 28
10. Spec Z

    Spec Z Racing

    1.3k

    posts

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    • 295 tires
    • By Aeneas137, June 9
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
12. Spec3

    The forum for Spec3 Racing: BMW E36 325

    1.1k

    posts

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    • The state of Spec3 - October 2021
    • By TaylorGoesFast, June 28
13. Spec E46

    Spec E46 Racing

    25

    posts

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    • For Sale: Spec E46 new build (partial) $19,500. No sunroof, original manual transmission, newly rebuilt engine
    • By Sal, April 5
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.

    7

    posts

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    • Frequently Asked questions
    • By Brett B., May 27
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.

    27k

    posts

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    • Technical Bulletin: Subframe Modification for Engine Swaps--All ST & TT 5-20-22
    • By Greg G., May 20
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. 

    121

    posts

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    • Where is the 2022 TREC schedule?
    • By Shooting Brake, 7 hours ago