Kart racing

Crash Team Racing and Konami Krazy Racers) feature karts as the main vehicles. Quinn was heating it on top of his home stove, sending a glass shard through his heart, and earning him a Darwin Award. Also, many childrens video game racing titles (i.e. The glass bottle exploded while Mr. A popular video game rendition is the Mario Kart series. On November 30, 2004, 24-year-old Philip Quinn died in a lava lamp accident. Many NASCAR drivers also got their start in racing from karts, such as Darrell Waltrip, Lake Speed, Ricky Rudd, Tony Stewart, and Kyle Petty. Because of this, users have been tempted to warm the lamp by other means, which is why the makers include a safety warning.

Many, perhaps most Formula One racers grew up racing karts, most prominent among them Michael Schumacher, Ayrton Senna and Mika Häkkinen. In a sufficiently cold room, the wax may never start to flow. Such karts are usually powered by small, detuned four-stroke engines and are far slower than the fully-fledged competitive versions. This can take an hour or longer, especially if it's cold. As well as "serious" competitive kart racing, many commercial enterprises offer casual hire of karts. The lamp is immobile until the liquid is sufficiently warmed by a (typically 40 watt) lamp . In addition, it brings an awareness of the various parameters that can be altered to try to improve the competitiveness of the kart (examples being tyre pressure, gearing, seat position, chassis stiffness) that also exist in other forms of motor racing. Walker sold his rights to Cressida Granger whose company Mathmos continues to make lava lamps and other related products.

It can prepare the driver for high-speed wheel-to-wheel racing by helping develop quick reflexes, precision car control, and decision-making skills. In the 1990s Mr. Karting is considered the first step in any serious racer's career. The lava lamp became an icon of the 1960s, where the constantly changing, brightly-color display has been compared to the psychedelic hallucinations of certain popular recreational drugs. Many people associate it with young drivers, but adults are also very active in karting. Wertheimer and his business partner Hy Spector bought the American rights to the product and began to produce it as the "Lava Lite"® via a corporation called Haggerty Enterprises and trading under the name Lava World International®. Kart racing is usually used as a low-cost and relatively safe way to introduce drivers to motor racing. He named it the "Astrolight" or "Astro Lamp" and presented it at a Hamburg trade show in 1965, where the entrepreneur Adolph Wertheimer noticed it.

In the United States, the biggest proportion of racers are in the dirt oval classes which often use Briggs & Stratton industrial engines. An Englishman, Edward Craven Walker, invented the original and best-known lava lamp in the 1960s.
Many people race in Spec series such as Rotax Max (a Touch-and-Go class), Formula TKM or those using the Yamaha KT100 engine, and Cadet classes for ages 8 to 12 are usually popular. Chaotic behaviour makes the movement of the wax unpredictable—hence lava lamps can aid in the generation of one-time pads for cryptographic use. These are regarded as the top levels of karting and are also raced in national championships. Beyond certain temperature parameters, the "lava" ceases to circulate, either remaining quiescent at the bottom (too cold) or all rising to the top (too hot). The FIA sanctions international championships in JICA, Intercontinental A, Formula A, Intercontinental C, Super ICC and Superkart Division 1 and Division 2. The cycle of rising and falling wax droplets continues so long as the bottom of the container remains warm and the top of the container remains cool.

There are many different classes or formulae in karting. The metal coil at the bottom helps to overcome the surface tension of the individual wax droplets, causing the descending blobs to agglomerate into a single molten wax mass at the bottom of the container. In general, consistency, reliability, and pit strategy is of greater importance than all out speed. One mass of wax may rise as another falls. Endurance races last for an extended period, from 30 minutes up to 24 hours or more, for one or more drivers. This process is called convection. The FIA championships, including the World Kart Championship, take place in this format. Near the top, away from the heat source, the wax cools and its density increases again, so it begins to fall through the liquid towards the bottom of the container again.

It normally occurs in the format of three qualifying heats and a final race for trophy positions. At this time, a portion of the wax rises towards the top of the container. Here, speed and successful passing is of the most importance. Wax at the bottom heats until it melts, and eventually becomes less dense than the liquid above it. Typical duration does not normally exceed 15 minutes. The light bulb heats the container at the bottom, and due to heat exchange with the atmosphere, the container eventually dissipates the introduced heat. The sprint format is a series of short-duration races, normally for a small number of laps, that qualify for a final, with a variety of point scoring calculations to determine the event's overall winner. This happens because the wax expands more than the liquid when heated.

Typically, race formats are one of the following:. The wax is slightly denser than the liquid at room temperature, and slightly less dense than the liquid under marginally warmer conditions. A variety of kart circuits permit the sport to be practised, although only homologated ones can have official races. The glass bottle sits on top of the bulb, which heats its contents. In the USA there is not as much FIA involvement. The lamp consists an illuminating bulb, and a glass bottle containing a transparent liquid, translucent wax, and a metallic wire coil. As a free-time activity, it can be performed by almost anybody, and as a motorsport in itself, it is one of the sports regulated by FIA (under the guise of CIK), permitting licensed racing for anyone from the age of 8 onward. .

Along with its motorcycle equivalent pocketbike racing, Kart racing is generally accepted as the most economic form of motorsport available. The gentle flow of randomly-shaped blobs of wax suggests the flowing of lava. The tyres can support acceleration round corners at 2 G (20 m/s²), depending on chassis, engine, and motor setup. A lava lamp is a novelty item typically used for decoration rather than illumination. Tyres are sometimes prepared with special solvents to soften them and increase grip, however this is banned by many racing organisations. Similar to other motorsports, kart tyres have different types for use appropriate to track conditions:.

Wheels and tyres are much smaller than those used on a normal car. Typical top speeds of racing karts are around 90 mph (145 km/h) for fixed gear and in excess of 160 mph (260 km/h) for the best shifters. In Europe, competitive kart racers tend to prefer fixed gear 100 cc or 125 cc machines although shifters of 125 cc, 250 cc and occasionally 210 cc are also raced. Some of these gearboxes are operated with wheel-mounted paddles.

More serious kart racers in the USA prefer shifter karts, which have a six-speed manual transmission and a clutch to make better use of the more powerful engine. Unclutched engines will be used at this level until 2007 when the rules will change. However, the top international classes still use direct drive engines, the reasoning being that at this level drivers should be good enough to stay on the track during the race and hence not need to restart their karts. These slipper clutches allow the high rpm kart engines to stay higher on their power curve at low speeds, and produce impressive acceleration as they engage.

At first the clutches were "dry", but the oil bath or "slipper" clutch became common later. In the very early days karts were direct drive, but the inconvenience of that setup soon led to the centrifugal clutch for the club level classes. They are usually limited to about 60 mph (100km/h) for sprint karts and about 90 mph (145 km/h) for enduro karts. Recreational karts have fixed gearing, which in part determines their top speed.

The lack of a differential means that the outside rear tire must slide while cornering. Karts do not have a differential. A typical 100 cc or 125 cc TaG engine costs around £1500, and a 125 cc gearbox engine about £2000. The most popular categories worldwide are those using 100 cc engines and the "Touch-and-Go" 125 cc units.

These can develop from about 16 hp to 30 hp (12 to 22 kW) for a single-cylinder 100 cc unit to 90 hp (67 kW) for a twin 250 cc. 2-stroke engines were originally taken from motorcycles, but have become a kart-specialised item with dedicated manufacturers, Vortex being one example. Briggs and Stratton and Honda are manufacturers of such engines. 4-stroke engines are typically standard lawn mower, generator, or even chainsaw engines, sometimes with small modifications, developing from about 5 to 20 hp (4 to 15 kW).

Gasoline 2-stroke or 4-stroke engines are the most common type, but other types of propulsion are available:. Several types are available, as well as differing fuel options. While hobby go-karts depend on gravity for propulsion (these are called soap-box carts or billy karts), racing karts use a small engine.
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(List of karting manufacturers). American companies in the shifter kart market include: GT Race Karts, Trackmagic and Margay. These usually cost around £1700. Avanti Kart, Birel and CRG are a few well known examples of the many European manufacturers of race-quality chassis.

Professionally raced karts typically weigh 200 to 300 lb (100 to 150 kg). Further complications can be added by changing floorpan materials / fastenings to change the effective stiffness of the chassis. For other classes / driving styles, there will be stiffening bars on the kart which are done up tightly for dry and loosened to give more flex for wet conditions. Typically, for dry conditions a stiffer chassis is preferable, while in wet or other poor traction conditions, a more flexible chassis is better- for some karts.

The stiffness of the chassis enables different handling characteristics for different circumstances. Caged karts are not used in Europe. Caged karts have a roll cage surrounding the driver, and open karts have no roll cage. If this did not happen, the grip of the rear wheels trying Kart chassis are also classified as 'open' or 'caged'.

The chassis is an extremely important element of the kart, as it must provide, via flex, the equivalent of suspension to give good grip at the front, and must be stiff enough to enable the inside rear wheel to unload in corners. . Karting has rapidly spread to other countries, and it currently has a large following in Europe. He built the first kart in Southern California in 1956.

Art Ingels is generally accepted to be the father of karting. Karts were initially created in the United States in the 1950s post-war period by airmen as a way to pass spare time. Karting is commonly perceived as the stepping stone to the higher and more expensive ranks of motorsports. They are usually raced on scaled-down tracks, but are sometimes driven as entertainment or as a hobby by non-professionals.

By definition a kart must have no suspension (relying on chassis flex), and no differential (solid back axle). Kart racing (as the word is so spelled by enthusiasts) or karting is a variant of open-wheeler motor sport with simple, small four-wheeled vehicles called karts, go-karts, or gearbox/shifter karts depending on the design. Special, such as spiked tyres for icy conditions. Sometimes worn wet tyres can be used.

Intermediates for damp or low traction conditions. Rain tires for wet weather. In international level racing these are some of the softest and most advanced tyres in motorsport and a development ground for Formula One. Slicks for dry weather.

Electric motors powered by kart-mounted batteries. Pressurised gas, using a cylinder carried with the kart. Gasoline engines converted to run on propane or methane. Engines running methanol (or other alcohol-based fuels).