Formula 500
Formula 500 (F500) is a Sports Car Club of America (SCCA) and Midwestern Council of Sports Car Clubs (MCSCC) Open wheel car, open wheel road racing class. Formula 500 was originally introduced in the early 1980s as Formula 440 (F440), and is a closely regulated class. Several chassis manufacturers produce different designs to a tight dimensional ruleset. Engines are specified by the ruleset, and builders are not allowed to modify engine internals. Instead of traditional dampers and springs, F500 cars utilize a very simple elastomeric spring medium contained in a cylindrical canister. The rules state the elastomer must be 2" in diameter by 1" in thickness, but the design and implementation of the elastomeric springs (commonly called "pucks" by the competitors) is wide open. Additionally, each chassis manufacturer produces bodywork of their own design, which adheres to dimensional constraints. These regulations allow for very competitive racing at a relatively low cost, which re ...
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2012 SCCA National Championship Runoffs Formula 500 Pan
1 (one, unit, unity) is a number representing a single or the only entity. 1 is also a numerical digit and represents a single unit (measurement), unit of counting or measurement. For example, a line segment of ''unit length'' is a line segment of length 1. In conventions of sign where zero is considered neither positive nor negative, 1 is the first and smallest Positive number, positive integer. It is also sometimes considered the first of the sequence (mathematics), infinite sequence of natural numbers, followed by 2, although by other definitions 1 is the second natural number, following 0. The fundamental mathematical property of 1 is to be a multiplicative identity, meaning that any number multiplied by 1 equals the same number. Most if not all properties of 1 can be deduced from this. In advanced mathematics, a multiplicative identity is often denoted 1, even if it is not a number. 1 is by convention not considered a prime number; this was not universally ac ...
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Kawasaki 440/A
The Kawasaki 440, also called the T/A 440, is a Japanese twin-cylinder, in-line, two-stroke engine that was designed for snowmobiles and produced by Kawasaki Heavy Industries until the early 1980s.Cliche, Andre: ''Ultralight Aircraft Shopper's Guide'' 8th Edition, page G-5 Cybair Limited Publishing, 2001. The engine was widely adapted for other purposes, including ultralight aircraft and Formula 500 automobile racing. Kawasaki did not condone or support the use of the engine in aircraft and it was largely supplanted in this role by the similar purpose-designed Rotax 377 aircraft engine. Design and development The engine has two cylinders in an in-line configuration. The single ignition system uses a coil and points. Fuel is metered by a Mikuni 34 mm slide-type carburetor. Starting is by a recoil starter system with electric start as an option. In its aircraft applications the 440 uses an aftermarket reduction drive system to reduce the maximum 5000 rpm to a speed more ma ...
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Continuously Variable Transmission
A continuously variable transmission (CVT) is an automatic transmission that can change seamlessly through a continuous range of gear ratios. This contrasts with other transmissions that provide a limited number of gear ratios in fixed steps. The flexibility of a CVT with suitable control may allow the engine to operate at a constant RPM while the vehicle moves at varying speeds. CVTs are used in cars, tractors, side-by-sides, motor scooters, snowmobiles, bicycles, and earthmoving equipment. The most common type of CVT uses two pulleys connected by a belt or chain; however, several other designs have also been used at times. Types Pulley-based The most common type of CVT uses a V-belt which runs between two variable-diameter pulleys. The pulleys consist of two cone-shaped halves that move together and apart. The V-belt runs between these two-halves, so the effective diameter of the pulley is dependent on the distance between the two-halves of the pulley. The V-shape ...
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F592RoadAmerica2009SCCANationalRunoffs
F59 may refer to: * EMD F59PH The EMD F59PH is a four-axle B-B diesel-electric locomotive built by General Motors Electro-Motive Division from 1988 to 1994. A variant, the F59PHI, was produced from 1994 to 2001. The F59PH was originally built for GO Transit commuter oper ...

Expansion Chamber
On a two-stroke engine, an expansion chamber or tuned pipe is a tuned exhaust system used to enhance its power output by improving its volumetric efficiency. History Expansion chambers were invented and successfully manufactured by Limbach, a German engineer, in 1938, to economize fuel in two stroke engines. Germany was running short of petrol, which was at that stage produced using coal and sewage transformation. An unexpected bonus was that the two stroke engines using tuned exhausts produced far more power than if running with a normal silencer. After the end of the second world war, some time passed before the concept was re-developed by East German Walter Kaaden during the Cold War. They first appeared in the west on Japanese motorcycles after East German motorcycle racer Ernst Degner defected to the west while racing for MZ in the 1961 Swedish Grand Prix. He later passed his knowledge to Japan's Suzuki. How it works The high pressure gas exiting the cylinder initiall ...
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SCCA
The Sports Car Club of America (SCCA) is a non-profit American automobile club and sanctioning body supporting road racing, rallying, and autocross in the United States. Formed in 1944, it runs many programs for both amateur and professional racers. History The SCCA traces its roots to the Automobile Racing Club of America (not to be confused with the current stock car series of the same name). ARCA was founded in 1933 by brotherMilesand Sam Collier, and dissolved in 1941 at the outbreak of World War II. The SCCA was formed in 1944 as an enthusiast group. The SCCA began sanctioning road racing in 1948 with the inaugural Watkins Glen Grand Prix. Cameron Argetsinger, an SCCA member and local enthusiast who would later become Director of Pro Racing and Executive Director of the SCCA, helped organize the event for the SCCA. In 1951, the SCCA National Sports Car Championship was formed from existing marquee events around the nation, including Watkins Glen, Pebble Beach, and Elk ...
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Two Stroke International
2si was an American engine manufacturer located in Beaufort, South Carolina. The company was a wholly owned subsidiary of the AMW Cuyuna Engine Company, formerly known as the ''Cuyuna Development Company''.Cliche, Andre: ''Ultralight Aircraft Shopper's Guide'' 8th Edition, page G-2 Cybair Limited Publishing, 2001. Purdy, Don: ''AeroCrafter - Homebuilt Aircraft Sourcebook'', page 69. BAI Communications. Cuyuna Development Company: ''Cuyuna Engines'', Cuyuna Development Company, undated The company acquired a line of two-stroke engines that were originally designed and produced by ''JLO'' of Germany and marketed them under the ''Cuyuna'' brand name for snowmobile and later ultralight aircraft use. Later Cuyuna formed a subsidiary ''Two Stroke International'', commonly known as ''2si'', to produce and market the engine line. Cuyuna ended selling engines for aircraft use, but instead switched to marketing them only for industrial, marine, auto racing, kart and all-terrain vehicle ...
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Autocross
Autocross (also called "Solo", "Auto-x" or "Autoslalom") is a timed competition in which drivers navigate one at a time through a defined course on either a sealed or an unsealed surface. It is a form of motorsports that emphasizes safe competition and active participation. Autocross differs from road racing and oval racing in that generally there is only one car on the track, driving against the clock rather than other cars. As an entry-level motorsport it provides a stepping stone for drivers looking to move into other more competitive and possibly expensive forms of racing (such as rallying, rallycross and circuit racing). Autocross courses are typically one to two kilometres long and tend to place demands on car handling and driver skill rather than on engine power and outright speed. Courses may be temporary and marked by traffic cones or be permanent tracks with approval by a motorsport body. Events typically have many classes that allow almost any vehicle, from economy seda ...
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Kawasaki Heavy Industries Motorcycle & Engine
Kawasaki Heavy Industries Motorcycle & Engine Company (川崎重工業モーターサイクル&エンジンカンパニー) is a division of Kawasaki Heavy Industries that produces motorcycles, All-terrain vehicle, ATVs, utility vehicles, jet ski personal watercraft, and general-purpose petrol engines. Before the 2011 fiscal year it was called Consumer Products & Machinery. Its slogan is "Let the good times roll!" Motorcycles Kawasaki's Aircraft Company began the development of a motorcycle engine in 1949. The development was completed in 1952 and mass production started in 1953. The engine was an air-cooled engine, air-cooled, 148 cc, Overhead valve, OHV, four-stroke engine, four-stroke single cylinder engine, single cylinder with a maximum power of at 4,000 rpm. In 1954, the first complete Kawasaki Motorcycle was produced under the name of Meihatsu, a subsidiary of Kawasaki Aircraft. In 1960, Kawasaki completed construction of a factory dedicated exclusively to mot ...
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Sequential Transmission
Sequential transmission may refer to: * Automated manual transmission, a type of mechanical power transmission; which is based on a conventional manual transmission, but is controlled by a computer, and can operate fully automatically. * Semi-automatic transmission, a method of mechanical power transmission used in motor vehicles; where part of its operation is automated (namely the clutch system), but the driver's input is still required to manually change gears * Sequential manual transmission, a type of mechanical power transmission; commonly used in motorcycles, race cars, and certain road cars * Serial communication, a method of data transmission in telecommunication and computing See also * Automatic transmission An automatic transmission (sometimes abbreviated to auto or AT) is a multi-speed transmission used in internal combustion engine-based motor vehicles that does not require any input from the driver to change forward gears under normal driving c ...

2si 500
The 2si 540 and 2si 500 are a family of in-line twin-cylinder, liquid-cooled, two-stroke, dual ignition, aircraft engines that were designed for ultralight aircraft.Cliche, Andre: ''Ultralight Aircraft Shopper's Guide'' 8th Edition, page G-2 Cybair Limited Publishing, 2001. The basic engine was originally designed and produced by JLO-Motorenwerke of Germany and was later acquired by the AMW Cuyuna Engine Company of Beaufort, South Carolina and marketed under the ''Cuyuna'' brand name. Later the engine was marketed by Cuyuna under the Two Stroke International (2si) brand. Cuyuna no longer markets engines for aircraft use although the 540 is still in production as a sport vehicle engine. Development The 540 is a conventional twin-cylinder engine that weighs in its L70 aircraft version. The engine features dual capacitor discharge ignition (single in the sport vehicle version), reed valve porting, tuned exhaust system, two slide venturi-type carburetors, liquid cooling, fuel p ...
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Yamaha R6
The Yamaha YZF-R6 is a sport bike, produced by Yamaha as a 600 class from 1999 to 2020. From 2021, production availability is limited to race-only specification in most global markets, causing race organisers to re-align their engine eligibility criteria to encourage other manufacturers having larger than 600 cc displacements to enter road-race competition from 2022. Race organisers wanted to provide scope for alternative machinery to move away from established tradition of the Yamaha R6 being the dominant marque in Supersport racing. History The YZF-R6 was introduced in 1999 as the super sport version of YZF-R1 super bike, and as a companion to the more street-oriented YZF600R sport bike which continued to be sold alongside the R6. The motorcycle featured Yamaha's completely new engine design capable of producing over while stationary. The R6 was the world's first 600cc production four-stroke motorcycle producing over in stock form.
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