Funny Car is a type of drag racing vehicle and a specific racing class in organized drag racing. In the United States, the other professional drag racing classes are Top Fuel, Pro Modified, Pro Stock, and Pro Stock Bike. Funny cars are characterized by having tilt-up fiberglass or carbon fiber automotive bodies over a custom fabricated chassis, giving them an appearance vaguely approximating manufacturers' showroom models. They also have forward-mounted engines (engine placed in front of the driver), as opposed to dragsters which (currently) place the engine behind the driver.[1]
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Funny car bodies typically reflect the models of newly available cars in the time period that the funny car was built. For example, in the 1970s, then current models such as the Chevrolet Vega or Plymouth Barracuda were often represented as funny cars, and the bodies represented the Big Three of General Motors, Ford, and Chrysler.[2] Currently, four manufacturers are represented in National Hot Rod Association (NHRA) Funny Car — Chevrolet with the Camaro,[3] Dodge with the Charger,[4] Ford with the Mustang,[5] and Toyota with the Camry.[6] Worldwide, however, many different body styles are used. These "fake" body shells are not just cosmetic; they serve an important aerodynamic purpose.[7]
'The NHRA has strict guidelines for funny cars. Most of the rules relate to the engine. In short, the engines can only be V-8s displacing no more than 500 cubic inches (8.19 L). The most popular design is loosely based on the second generation Chrysler 426 Hemi "Elephant Engine" made from 1964 to 1971.
There can only be two valves per cylinder. The heads are machined from aluminum billet and have no water jackets, as the high latent heat of the methanol in the fuel coupled with the brevity of the run precludes the need for water cooling of the cylinder heads.
'Superchargers are restricted to a basic Roots type—19-inch (480 mm) rotor case width with a breadth of 11.25 inches (286 mm). The rotors are not allowed to have more than a certain amount of helical twist in them so the blower does not become a screw-type supercharger in function. Only single camshafts are allowed. There are two common bore-stroke combinations: 4.1875 by 4.50 inches (106.36 mm × 114.30 mm) (called a 3/4 stroker) and 4.25 by 4.375 inches (108.0 mm × 111.1 mm) (called a 5/8 stroker). The 3/4 stroker is the most common combination used today and equals 496 CID (8.1 L).
Crankshafts are CNC machine carved from steel billet then nitrided in an oven to increase surface hardness. Intake valves are titanium and of 2.40-inch (61 mm) width, while exhaust valves are 1.90-inch (48 mm) width of Inconel.
You're done with the first round! Now just repeat the same exercises for two more rounds for the full workout. : DailyMail.
'The NHRA has strict guidelines for funny cars. Most of the rules relate to the engine. In short, the engines can only be V-8s displacing no more than 500 cubic inches (8.19 L). The most popular design is loosely based on the second generation Chrysler 426 Hemi "Elephant Engine" made from 1964 to 1971.
There can only be two valves per cylinder. The heads are machined from aluminum billet and have no water jackets, as the high latent heat of the methanol in the fuel coupled with the brevity of the run precludes the need for water cooling of the cylinder heads.
'Superchargers are restricted to a basic Roots type—19-inch (480 mm) rotor case width with a breadth of 11.25 inches (286 mm). The rotors are not allowed to have more than a certain amount of helical twist in them so the blower does not become a screw-type supercharger in function. Only single camshafts are allowed. There are two common bore-stroke combinations: 4.1875 by 4.50 inches (106.36 mm × 114.30 mm) (called a 3/4 stroker) and 4.25 by 4.375 inches (108.0 mm × 111.1 mm) (called a 5/8 stroker). The 3/4 stroker is the most common combination used today and equals 496 CID (8.1 L).
Crankshafts are CNC machine carved from steel billet then nitrided in an oven to increase surface hardness. Intake valves are titanium and of 2.40-inch (61 mm) width, while exhaust valves are 1.90-inch (48 mm) width of Inconel.
You're done with the first round! Now just repeat the same exercises for two more rounds for the full workout. : DailyMail.
