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  2. Houston Raceway Park - Wikipedia

    en.wikipedia.org/wiki/Houston_Raceway_Park

    Houston Raceway Park has permanent rest room facilities and concession buildings, located near spectator seating on both sides of the race track. Houston Raceway Park had an exclusive contract with the National Hot Rod Association to host an NHRA National Event within a 200-mile radius of the Houston metropolitan area. The event was renamed the ...

  3. Density altitude - Wikipedia

    en.wikipedia.org/wiki/Density_altitude

    The density altitude is the altitude relative to standard atmospheric conditions at which the air density would be equal to the indicated air density at the place of observation. In other words, the density altitude is the air density given as a height above mean sea level. The density altitude can also be considered to be the pressure altitude ...

  4. List of auto racing tracks in the United States - Wikipedia

    en.wikipedia.org/wiki/List_of_auto_racing_tracks...

    Texas Super Racing Series, Texas Pro Sedans, Dwarf Car Racing Series of Texas, Texas Thunders, Bombers, Super Streets, Sport Mods Thunder Road International SpeedBowl [54] Vermont Barre: 0.25 miles (0.40 km) High-banked oval (asphalt) American Canadian Tour, Pro All Stars Series, Late Models, Tiger Sportsman, Street Stocks, and Junkyard Warriors

  5. List of dirt track ovals in the United States - Wikipedia

    en.wikipedia.org/wiki/List_of_dirt_track_ovals...

    Dirt track racing is the single most common form of auto racing in the United States. According to the National Speedway Directory, there are over 700 dirt oval tracks in operation in the US. [1] The composition of the dirt on tracks has an effect on the amount of grip available. Many tracks use clay with a specific mixture of dirt.

  6. Texas Motorplex - Wikipedia

    en.wikipedia.org/wiki/Texas_Motorplex

    Texas Motorplex grandstands. The Texas Motorplex is a quarter mile drag racing facility located in Ennis, Texas, United States, 40 miles (64 km) south of downtown Dallas. Built in 1986 by former funny car driver Billy Meyer, [1] the Motorplex was the first National Hot Rod Association (NHRA) "super track." It annually hosts the Texas NHRA ...

  7. Green Valley Raceway - Wikipedia

    en.wikipedia.org/wiki/Green_Valley_Raceway

    Green Valley Raceway was a motorsports race track located in Smithfield, Texas, and was part of the Dallas–Fort Worth metroplex. Designed and built by Bill McClure on his North Texas dairy farm, the facility opened in 1960, and was used for over 20 years until its closure in 1986. [2]

  8. Drag racing playoffs coming to Texas Motroplex in Ennis this ...

    www.aol.com/drag-racing-playoffs-coming-texas...

    The National Hot Rod Association is making a pit stop in North Texas this weekend, the latest race for the drag racing playoffs. Texas Motorplex in Ennis is hosting the Texas NHRA Fall Nationals ...

  9. Super Comp - Wikipedia

    en.wikipedia.org/wiki/Super_Comp

    At race tracks where the altitude is above 1,500 feet above sea level (mostly in Divisions 5, 6, and 7 in the NHRA), tracks will have an Altitude Correction Factor multiplied into the index time. The index time will be multiplied by the Altitude Correction Factor to obtain the official time used by the NHRA.