Dirt track racing is a form of motorsport held on clay or dirt surfaced banked oval racetracks. Dirt track racing started in the United States before World War I and became widespread during the 1920s and 1930s using both automobiles and motorcycles, spreading throughout Japan and often running on horse racing tracks. There are a myriad of types of race cars used, from open wheel Sprint cars and Modifieds to stock cars. While open wheel race cars are purpose-built racing vehicles, stock cars (also known as fendered cars) can be either purpose-built race cars or street vehicles that have been modified to varying degrees. There are hundreds of local and regional racetracks throughout the United States and also throughout Japan. The sport is also popular in Canada , Mexico , Argentina , Brazil , Chile , Australia , New Zealand , South Africa and the United Kingdom .
50-596: Sydney International Speedway , known as Sydney II as its successor to the original circuit, is a dirt track racing venue held near the shutdown area of Sydney Dragway in Eastern Creek. Like the original, it is about 500m (0.311 miles) in length (489m at the lowest line, 511m near the wall). The name "Sydney II" differentiates it from the former Sydney Speedway (known commercially as Valvoline Raceway and formerly as Parramatta Speedway , and often referenced as Sydney Speedway I to differentiate with its successor) on
100-483: A 35-lap sprint car feature won by Jamie Veal, shortened to 18 laps because of curfew. It is located at 394 Ferrers Road, Eastern Creek in New South Wales. Sydney II hosted the 2023 Australian Speedcar Championship won by United States Auto Club star Brady Bacon . In 2025, a sprint car meeting will be held as part of the 2025 Supercars Championship . Parramatta City Raceway was used during filming for scenes of
150-420: A National and/or Regional touring racing association to schedule a sanctioned event. The racers in these events earn points for ranking within the series and sometimes the tracks points. The associations also usually require a guaranteed purse from the tracks of sanctioned events. Some tracks also have a "run-what-you-brung" contest usually toward the beginning of the season. Spectator racing pits two drivers from
200-424: A decade and all tracks paved over eventually reverted to their former surfaces. Each racetrack or sponsoring organization maintains a rule book outlining each class of race car which includes dimensions, engine size, equipment requirements and prohibitions. The requirements for each class are usually coordinated with multiple tracks to allow for the widest available venue for each type of car. This coordination allows
250-840: A few original stock parts and may be nearly as fast as late model race cars. Most cars have their glass windshields removed and their interiors stripped out. The original seat may be allowed to be used in the lowest classes, but a racing seat and roll cage is required to be installed in higher divisions. Other safety and performance features are added to higher division cars. The engines in lower divisions are completely stock, and higher divisions are highly modified and enhanced. Most modified production cars use full exhaust systems. Engines vary from unmodified 4 cylinders to highly modified V8. Cars in lower divisions use stock tires, and higher division cars use purpose-built specified racing tires. Common names of modified production car divisions: These are Full-bodied cars with very few changes allowed from
300-428: A grader, a cultivator or rototiller, 2 types of rollers and a watering truck, although the process varies at different dirt tracks around the world. After an event, a track's rutted surface is first graded and smoothed back into the contours of the track's layout. then further smooth and tamp loose soil shoveled into any soft spots. The freshly smoothed track surface is then aerated with a cultivator or rototiller to loosen
350-692: A late model stock. Crate late models use Chevrolet small-block engine engines that have been sealed with a special tag. Typical motors include the GM 602 and GM 604 engines. Recently the GM CT525 crate has been a popular choice of racers and some after-market Ford motors have surfaced in competition. Crate engines are sealed at the intake manifold, cylinder head , front cover, and oil pan with special twist off bolts. Crate engines must not be altered, modified, or changed in any way from factory specifications. Crate late models have three primarily Southern region touring series:
400-426: A number of classes, and many tracks offer both open wheel and stock car racing. There are a wide variety of event formats. These races are 2-5 laps for drivers to get an understanding of the track conditions and the set up of their race cars. They are at the very start of the night before qualifying and the heat races. A qualifying session happens before the start of the event. The Lucas Oil Dirt Late Model Series and
450-437: A set number of points for where they finish, 1st-59 2nd-57 and so forth the lower they finish. To add to the points the driver gets for finishing, the driver also gets 1.5 points for each car they pass. They will then usually take the top 16 drivers with the highest total number of points and line up the A feature. There may be a semi-feature where unqualified racers may race their way into the remaining open starting positions in
500-549: A time of 16.70 seconds. On 1 April 2017, Sammy Walsh set the current the one-lap record with an 11.500. In October 2019, it was announced Sydney Speedway is to close to make way for a Sydney Metro West maintenance facility. The NSW Government promised to rebuild the speedway in a different location in Sydney. In December 2020, the new Sydney International Speedway within the Western Sydney Parklands at Eastern Creek
550-555: Is being run. The racetrack dictates what type of late model is raced, but most fall into one of these categories: Current dirt super late models feature steel constructed tube frame chassis with aluminum bodies that give them the sleek aerodynamic appearance of a stock race car but there is nothing stock about these 2300 pound machines. The cars are powered by an 850 horsepower (630 kW) motor than can turn in excess of 9,000 rpm. The engines are based on V-8 Chevrolet, Chrysler, and Ford power plants. These cars are considered to be
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#1732869434278600-429: Is held for each division. The top cars from the event compete in the race. The starting positions may be determined by the season's point standings, or by a combination of the heat/qualifying speed/trophy dash/semi-feature finishing positions. It is usually the longest race in the program and depending upon the division it may range from 10 laps to 50 laps. Points, a trophy, and frequently a purse are generally awarded, with
650-879: Is much more expensive. To get the frame (chassis) and parts all new without the transmission and motor is around 20,000 to 30,000 dollars depending on the quality and from which manufacturer the chassis comes. The top manufacturers around the country include Rocket, Sweet-Bloomquist, Club 29, Longhorn, MB Customs, Black Diamond Racecars, GRT, Warrior, Barry Wright Racecars, Rayburn, MasterSbilt, Kryptonite, Domination chassis, and Schwartz Race Cars. The engines for these cars are around 850 horsepower and can cost up to 40,000 dollars. Motor builders include Hatfield Racing, Jay Dickens Racing Engines, Durham Racing Engines, Cornett Racing Engines, Sheered Engine Development, Gaerte Racing Engines, Clements Racing Engines, Custom Racing Engines, Vic Hill Racing Engines and Pro Power Engines. Most racing series and special events offer different motor options with
700-557: The Australian Speedcar Championship (1988, 1994, 2006) and the Australian Super Sedan Championship (2003). It also hosted rounds of David Tapp's Australian Speedway Masters Series for Solos (in a rare visit to the track) and in 2004 became the first speedway outside of North or Central America to host the famed World of Outlaws sprintcar series, which featured some of America's best taking on
750-709: The Australian Speedcar Grand Prix in 1997, 1998, 2001 and 2011. In 2015, the track hosted the Speed Energy Formula Off-Road truck racing series, popularly known as the Stadium Super Trucks , as a support event for the Ultimate Sprintcar Championship ; Sheldon Creed went on to win the first (and only) Formula Off-Road race held at Valvoline Raceway. Wayne Fisher set the very first one-lap record on 9 December 1977 with
800-529: The 1920s and 1930s. Most oval track speedways are similar to those in the US for car racing such as sprint cars , speedcars (midgets) and sedans, with most tracks generally around 1 ⁄ 4 to 1 ⁄ 3 mile (400 to 540 m) in length. Most tracks have a clay surface, though some use dolomite , dolomite and clay mix or even sand and clay mix. During the 1970s and early 1980s, a small number of tracks were paved with asphalt, though this phase only lasted about
850-432: The 1983 Australian movie Midnite Spares about a young sprintcar driver, Steve Hall, who had returned to Sydney from Queensland to team up with his father on both the track and in his dad's towing business, only to find that his dad had gone missing (presumed and later confirmed murdered) and his business partner being pressured into becoming part of a 'midnite spares' network for stolen cars. A number of scenes were shot at
900-425: The A feature event. This race is called the last chance qualifier or B feature. The cars who did not make the A feature through the heat race or qualifying session get one more chance to qualify for the A feature through the B feature. The B length is anywhere up to circa 20 laps. Depending on how many B's there are determines how many transfer to the A, anywhere up to circa 6 will transfer. If a driver transfers through
950-418: The B, they will start behind the drivers who made it through the heats / qualifying position. At selected other races with a larger car count, there may be more "alphabet soup" features (C, D, E, F, etc.). In those cases the drivers in the lower feature race will race with a certain number who advances to the next higher feature (e.g. top two in the F advance to the E, etc.). The A feature or main feature race
1000-649: The Durrence Layne Dirt Late Model Series, the United Crate Racing Alliance and the Fastrak Crate Late Model Series. There are hundreds of additional unsanctioned regional and national special events run throughout the year. Dirt and grass track bikes have capacities of 250, 350, 500 and in the solo classes and can reach speeds of up to 80 mph (130 km/h) on the straights and with no brakes fitted to
1050-505: The Showground or Liverpool, which raced on Saturday nights. From its opening, the new speedway became known as the premier sprintcar track in Australia, a title it still enjoys as of 2015. With its wide open spaces (the track itself has no actual safety fence, with the old trotting track forming a barrier between the track and the outside safety fence) and short straights, Parramatta City Raceway
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#17328694342781100-455: The U.S. are 1 ⁄ 2 mile (800 m), 3 ⁄ 8 mile (600 m), 1 ⁄ 3 mile (540 m), 1 ⁄ 4 mile (400 m), and 1 ⁄ 8 mile (200 m). With the longer tracks, the race cars achieve higher speeds up to 160 mph (260 km/h) and the intervals between cars increase. This decreases the chance of crashes but increases the damage and chance of injury when cars do crash. In Great Britain
1150-512: The World of Outlaw Late Models use the qualifying system to line up their heat races. They give each driver 2 timed laps to get their times. This system is also used to line up the big crown jewel events. For most of the regional series they use the method called the "pill draw." Before the races each driver draws a number and that determines where they start in their heat race. Recently the innovation of Transponder Scoring has brought dirt track racing into
1200-422: The amount of each is determined by finishing position. The winner of the feature event is considered the winner of the event. Many tracks have special events which tends to draw a larger crowd. Occasionally, a track will sponsor a "powder-puff" race to allow women the opportunity to drive racecars for a few laps of racing. Otherwise, woman racers may compete in the same events as the men. Many tracks contract with
1250-659: The class, the cars may have wings to aid in handling at higher speeds. Open wheel cars are generally manufactured with tubular frames and a body purchased for that particular class. The wheels of these vehicles are not protected by fenders; they are exposed or "open". Classes include: Open wheel sanctioning bodies include: Popular chassis manufacturers around the country for winged sprint cars are Eagle, Maxim, J&J, Triple X, and GF1. There are also several engine builders that build both 410ci and 360ci engines for traveling sprint car teams. Speedway, Kistler, Gaerte, Wesmar, Shaver, Don Ott Racing Engines, and Fisher Racing Engines are
1300-621: The driver and passenger working together to obtain the best grip and speed around the corners. Many obsolete race vehicles that were left in barns to rust are being restored to their former glory. The restored race vehicles are being displayed at car shows and sometimes raced. Cars that compete in vintage racing events are from the late 19th century to historic cars from a few years ago. There are more than 170 racing events in North America, and thousands of other vintage events sanctioned by hundreds of clubs. The typical race program usually involves
1350-475: The drivers to compete at many different racetracks, increase competitors' chances of winning, and lets racing associations develop a series of race events that promote fan interest. Many tracks support two types of racing in their programs, open wheel cars and stock cars. Both types range from large and powerful V8 engines to small yet still powerful, four-cylinder engines. Some of the smaller open wheel race cars have classes for single-cylinder engines. Depending on
1400-459: The drivers. Super Stock cars are very similar to Late Models and can be built from the ground up by the racers. They have limited engines and other restricted items that keep them from being full blown Late Models, but they are much more powerful than the Street Stocks and are an intermediate class between Street Stock, Modifieds and Late Models. The bodies are aftermarket or made by the racers in
1450-492: The factory except for the roll cage. These would also be considered Pure Stock, but not full sized. These are also Full-bodied cars but can have changes to the frame, engines, tires and some changes to the suspension. They have to have bodies shaped like the actual cars that are used on the street direct from the factory. As with the Pure Stocks cars, all are required to have a full set of Roll Cages and safety harnesses to protect
1500-454: The factory models sold for general use on the streets. Changes can be limited to a certain type of tire, making some parts of the car stronger to withstand the punishment of racing and so forth. All cars used on the race track are required to have a full set of Roll Cages and safety harnesses to protect the drivers. Some tracks have what they call Hornets which are smaller unibody cars with 4-cylinder engines, that must be pretty much as they left
1550-409: The feature event. In a race where they qualify to determine their starting position for the heat race they use a "heads up" system. This system is where there is a predetermined set of cars that go to the A feature from the heat race, usually either the top 3 or 4. In a race where they use the pill draw to line up the heat races they use a method called passing points. In this system a driver receives
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1600-496: The general shape of the brand being represented (Chevrolet, Ford, Dodge, etc.). These cars are automobiles just as driven on the street; including the original interiors. The engines may be modified as allowed under different rules: Saloon These are stock cars custom built for racing, usually with welded tubular frames and custom built or purchased bodies. The most popular type of dirt full-bodied stock cars are late models. They are categorized depending on what track and series that
1650-456: The internet immediate post "live" scoring and timing of events (Race Monitor). Preliminary races for each class, called heat races, frequently open the schedule. The heat races may determine the starting race position in the main events and usually earn season championship points. The heat races are shorter than the feature races, and not as many cars race in each heat, from 8 to 12 laps for a heat race. There are numerous formats for qualifying for
1700-503: The locals. The winner of the event was Outlaws 'King' and regular visitor to both Australia and Parramatta, Steve Kinser . The event eventually forced local sprintcar authorities to consider switching from a 372 ci engine formula to the more familiar 410ci formula used by sprintcars elsewhere. Valvoline Raceway has also been the venue for the Australian Sprintcar Grand Prix since its inception in 1979 as well as hosting
1750-551: The machine. The American Grand National dirt track championship uses motorcycles of up to 750 cc capacities and can reach speeds of up to 130 mph (210 km/h). There are three sidecar classes. The continental class has a 500 cc single-cylinder engine, also in Great Britain there are left- and right-handed sidecar machines with the engines up to 1000 cc. Sidecar races are some of the most exciting in Grass Track sport, with
1800-425: The major automakers with certain modifications as allowed for each class. There are several general types: These cars are modified manufactured automobiles. There is a high degree of variability between classes of modified cars. The lowest divisions of modified production cars may be completely stock except for having their interior or windshields removed. The highest divisions of modified production cars may have only
1850-491: The memory of Brostoff. As of November 2015 all are 1 lap with a rolling start. Dirt track racing A dirt track's racing surface may be composed of any soil, although most seasoned dirt racers probably consider a moist, properly prepared clay oval their favorite dirt racing surface. Preparing a dirt track correctly for racing is both a traditional learned craft as well as a long and complex job requiring hours of work. Typical machines used in track preparation include
1900-723: The more popular engine builders. Modified cars are a hybrid of open wheel cars and stock cars. This class of car has the racing characteristics of a stock car. The rear wheels are covered by fenders, but the front wheels are left exposed. There are sanctioning bodies that control the rules for this class at most tracks. Each sanctioning body has their own set of guidelines provided in an annual rule book and their own registration fees. Sanctioning bodies include: Full-bodied cars, sometimes referred to as stock cars, are vehicles that, unlike open-wheel cars, have fenders covering all wheels. Full-bodied cars can vary from full tube frame chassis and aluminum bodied late models to automobiles manufactured by
1950-418: The most sophisticated cars in dirt racing. They hit speeds well over 100 mph (160 km/h) and slide around the dirt corners. They are raced on dirt tracks throughout the country anywhere from 1/5 to one mile. The expense for these cars is significant. The cost for one complete race-ready late model is around $ 70,000. There is also cheaper equipment and parts that can be purchased, but staying competitive
2000-469: The nearby Cumberland Oval , racing at Granville was short-lived. The new 460-metre-long (500-yard) clay surfaced oval was the brainchild of former Sydney driver Sid Hopping, who wanted to give Sydney a track purpose-built for the new, faster breed of American-style sprintcars . Sydney's two other tracks at the time, the Showground and the Liverpool Speedway , did run sprintcars, though the Showground
2050-612: The now-compacted upper layer and assist with greater water penetration for a moister track on race day. Watering is repeated as necessary according to climate, location and soil composition. Using offset boom nozzles to on water trucks will avoid mashing aerated soil. A dirt track should be rolled and watered as required on race morning with a final light watering, just prior to wheel-packing. Outdoor dirt tracks are typically aerated 12" deep. Nearly all tracks are oval and less than 1-mile (1.6 km) in length with most being 1 ⁄ 2 mile (800 m) or less. The most common increments in
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2100-421: The oval tracks are normally on grass with lengths of 400 meters (¼ mile) to 800 meters (½ mile). The races consist of several four lap qualifying heats that eliminate slower drivers. Then there is a final race featuring the fastest competitors. In mainland Europe, long tracks can be grass, sand or cinder, and can be up to 1-kilometer (0.62 mi) long. Dirt track racing in Australia has a history dating back to
2150-587: The site of the Granville Showgrounds in Sydney , marking the second consecutive round with Supercars paired with sprint car racing. Speedway racing had taken place at the Granville Showgrounds during the 1930s with races using the existing ½-mile harness racing track. However, with speedway already established at the Sydney Showground Speedway and Sydney Sports Ground , as well as racing at
2200-399: The speedway with a number of drivers having cameo appearances (as themselves) including Garry Rush, George Tatnell, Terry Becker, and Bob Blacklaw. Local driver Rob Worthington stood in for lead actor James Laurie during the racing scenes. During filming for the movie, focus puller David Brostoff was killed when he was hit by a sprintcar driven by Steve Brazier Jr. The movie was dedicated to
2250-468: The stands who, after signing waivers, can run their personal automobiles against each other in a one-on-one 1 or 2 lap shootout. Dirt tracks tend to be somewhat more makeshift and more versatile than asphalt pavements, and can be converted for use in other motorsports. For instance, Little Valley Speedway in Little Valley, New York is a half-mile dirt track that can be converted into a figure 8 track ,
2300-426: The use of different total vehicle weights to create an even playing field: Limited late models and late model stocks have the same body rules as super late models. The main difference in the two classes is the motor rules. Engine limitations typically include maximum engine displacement size, certain required cylinder head angles, maximum compression ratios, and maximum carburetor size. Suspension rules typically forbid
2350-519: The use of expensive canister shocks. Tire choice is also typically limited to a certain tire such as the Hoosier D55 spec tire. Late model stocks have the same body rules as super late models and limited late models. This class typically has even more limited engine rules. Typical late model stock engine requirements: Many different tracks and sanctioning bodies have variations on these rules of what constitutes an open late model, limited late model and
2400-510: Was approved, and construction began in 2021. The new speedway is located south of the Sydney Motorsport Park and next to the chute at Sydney Dragway . Sydney Speedway officially closed on the 10 April 2021. A final farewell was given to the event, held at the carpark of the venue. Sydney II, originally known as Eastern Creek Speedway, was originally set to open on 25 February 2022, but with weather delays, opened on 12 March 2022 with
2450-515: Was deemed too narrow while Liverpool had changed from dirt to bitumen in 1974, which suited the sedans, but not so much the Super Modifieds (later to become sprintcars) and Speedcars . The clay track at the Granville Showgrounds was laid out and first practices took place in January 1977 to test out the track. Hopping and his partner Bert Wilder ran meetings on Friday nights so as not to compete with
2500-500: Was home to some of the country's best drivers, including multiple Australian Champions Garry Rush, George and Brooke Tatnell, Bob Tunks, and Skip Jackson, as well as other top drivers including Bob "The Streak" Blacklaw, former motocross star Stephen Gall. and John Walsh. Since its opening, the speedway has hosted the Australian Sprintcar Championship on six occasions (1978, 1992, 1997, 2002, 2008, 2017), as well as
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