Cover of Car and Driver magazine, showing transparent diagram of CanAm racer

The Canadian-American Challenge Cup or CanAm, was an SCCA/CASC sports car racing series from 1966 to 1974. A second generation of Can Am followed, but this was a fundamentally different series based on obsolete Formula 5000 cars with sports car bodies. Image File history File links Cover of Car and Driver magazine, uploaded by Gerald Zuckier, showing cutaway diagram of CanAm racer. ... Image File history File links Cover of Car and Driver magazine, uploaded by Gerald Zuckier, showing cutaway diagram of CanAm racer. ... The Sports Car Club of America (SCCA) is a club and sanctioning body supporting road racing, rally, and autocross in the United States It runs many different programs for both amateur and professional racers. ... GTP sports cars racing at Mid-Ohio Sports Car Course in 1991 Sports car racing is a form of circuit racing, with purpose-built cars that nevertheless have enclosed wheel wells and often have closed cockpits. ... 1966 (MCMLXVI) was a common year starting on Saturday (link goes to calendar) // Events January January 1 - In a coup, Colonel Jean-Bédel Bokassa ousts president David Dacko and takes over the Central African Republic. ... 1974 (MCMLXXIV) is a common year starting on Tuesday (click on link for calendar). ... Formula 5000 (or F5000) was an auto-racing series that ran in the United Kingdom from 1968 to 1976. ...

Beginnings

Can Am started out as a race series for Group 7 sports racers with two races in Canada (Can) and four races in the US (Am). The series was initially sponsored by J-Wax. The Series used FIA Group 7 rules which had a rule structure with very few restrictions on innovation. Those rules allowed virtually unlimited experimentation with engine power, displacement, turbocharging and chassis downforce which resulted by its end it in truly outrageous cars with well over 1000 horsepower (750 kW), wings, active downforce generation, very light weight and unheard of speeds. The term displacement can have one of several meanings, depending on context: Displacement (distance), a physical quantity in kinematics Particle displacement, acoustics of sound in air Displacement (fluid), a different physical quantity, used in fluid mechanics and navigation; used as a measure of a ships size Engine displacement, a... Turbocharger Cut-away A turbocharger is a device used in internal-combustion engines to increase the power output of the engine by increasing the mass of oxygen and fuel entering the engine. ... The term downforce describes the downward pressure created by the aerodynamic characteristics of a racing car that allow it to travel faster through a corner by holding the car to the track or road surface. ... The horsepower (hp) is the name of several non-metric units of power. ...

Notable drivers and technology

Notable drivers in the original Can Am series included virtually every acclaimed driver of the late 60's and early 70's. Denny Hulme, Bruce McLaren, Phil Hill, Mark Donohue, Jim Hall, Chris Amon, Dan Gurney, Peter Revson, Masten Gregory, John Surtees, Parnelli Jones, Mario Andretti, Jack Brabham, Pedro Rodriguez, Vic Elford, and Jackie Stewart all drove Can Am cars at one time or another. Denis Clive Denny Hulme (June 18, 1936-October 4, 1992) was the Formula One Champion of 1967 driving for the Brabham team. ... Bruce Leslie McLaren (30 August 1937–2 June 1970), born in Auckland, New Zealand, was a race-car designer, driver, engineer and inventor. ... Philip Toll Hill Jr. ... Mark Donohue (March 18, 1937 - August 19, 1975) was an American racing driver. ... Jim Hall is a programmer for the FreeDOS project and the original developer of the GNU Robots program. ... Chris Amon (born 20 July 1943) was a New Zealand Grand Prix driver of the 1960s and 1970s, widely accepted to be one of the best drivers never to win a F1 Grand Prix. ... Daniel Sexton Gurney (born April 13, 1931) is one of the most important figures in the history of American auto racing. ... Peter Jeffrey Revson (born in New York City, February 27, 1939 - died in Johannesburg, South Africa, March 22, 1974) was a racecar and Formula One driver from United States. ... Masten Gregory was a Formula One driver from the United States. ... John Surtees (Ferrari) at the British Grand Prix 1964 John Surtees (born February 11, 1934) is a British racing driver, and the only one to have become World Champion on both two and four wheels. ... Rufus Parnelli Jones won the 1963 Indianapolis 500. ... Mario Andretti portrayed on the cover of Esquire Mario Gabriele Andretti (born February 28, 1940) is an American racing driver, arguably the most successful US citizen in auto racing. ... Jack Brabhams 1961 Cooper-Climax, the car that began the rear-engine revolution at the Indianapolis 500 Sir John Arthur Jack Brabham, OBE (born April 2, 1926) is an Australian racing driver who was Formula One champion in 1959, 1960 and 1966. ... Pedro Rodriguez may refer to various people: Pedro Rodriguez (soldier), Puerto Rican Korean War hero who won two Silver Star Medals. ... Vic Elford was a Formula One driver from Britain. ... Jackie Stewart speaking at the 2005 United States Grand Prix Sir John Young Stewart OBE (born June 11, 1939 in Dumbartonshire, Scotland), better known as Jackie Stewart, is a three-time Formula One racing champion representing Great Britain. ...

Can Am was the birth place and proving ground for (what was at the time) outrageous technology. Can Am cars were among the first race cars to sport wings, effective turbo charging, undertrays, and aerospace materials like titanium. This led to the eventual downfall of the original series when costs got very much out of hand, but during its height Can Am cars were at the cutting edge of racing technology. Noted constructors in the Can Am Series included McLaren, Chaparral, Lola, BRM, Shadow and Porsche. McLaren, founded in 1963 by Bruce McLaren (1937–1970), is a racing team based in Woking, England, which is best known as a Formula One constructor but has also competed in the Indianapolis 500-Mile Race, Canadian-American Challenge Cup, and 24 Hours of Le Mans. ... Lola Racing Cars (also Lola Cars International) is a racing car engineering company founded in 1961 by Eric Broadley and based in Huntingdon, United Kingdom. ... British Racing Motors (generally known as BRM) was a British Formula 1 motor racing team. ... Shadows on a pavement A shadow is a region of darkness where light is blocked. ... Porsche (), (pronounced porsh-uh) is a German manufacturer of sports cars, founded in 1931 by Ferdinand Porsche, the engineer who created the first Volkswagen. ...

The Manufacturers

Team McLaren cars were specially designed race cars. The Can Am cars were developments of the sports cars which were introduced in 1964 for the North American sports car races. The development variants M1A and M1B were raced as factory cars in the 1966 with Bruce McLaren and Chris Amon as drivers. In 1967, specifically for the Can Am series, the McLaren team introduced a new model, the M6. The McLaren M6 also introduced what was to become the trademark orange colour for the team. The McLaren team consisted of team owner and leader Bruce McLaren and Dennis Hulme. The M6 series were a full alumninum monocoque design with no uncommon features but, for the time, uncommon attention to detail. The M6 series of cars were powered by smallblock Chevy engines built by George Boltoff for McLaren and were the model of reliability. This was followed in 1968 by the M8A, a new design based around the Chevy "big block" engine as a stressed member of the chassis. The M8B, M8C, M8D and M20C were developments of that aluminum monocoque chassis. McLaren so dominated the 1968-1971 seasons that Can Am was often called the "Bruce and Denny Show" after the drivers. Sadly, Bruce McLaren lost his life in 1970 at Goodwood when the rear bodywork of his M8C detached during testing resulting in a totally uncontrollable car and a fatal highspeed crash. Team McLaren went on to become a several time F1 champion and is still very much a part of F1. 1970 (MCMLXX) was a common year starting on Thursday. ... Goodwood is an area in eastern Leicester. ... Formula One, abbreviated to F1 and also known as Grand Prix racing, is the highest class of single-seat open-wheel auto racing. ...

Jim Hall's Chaparrals were very innovative, following his success in the United States Road Racing Championship (USRRC). Jim Hall's 2 series Chaparrals were leaders in the application of aerodynamics to racecars culminating with the introduction of the 2E in 1966, the first of the high wing race cars. The 2E was a defining design, and the 2G was a development of that basic design. The FIA banned movable wings and Chaparral responded with the 2H 1969. The 2H broke new ground, seeking to reduce drag but didn't achieve much success. The 2J that followed was perhaps the ultimate example of what Group 7 rules could allow in a racing car. It was a twin-engined car, with the by-then usual big-block Chevrolet engine providing the driving force, and a tiny snowmobile engine powering a pair of fans at the back of the car. These fans, combined with rubber 'skirts' around the bottom of the car created an vacuum underneath the car, effectively providing the same level of downforce as the huge wings of previous vehicles, without the drag. Although far too mechanically complex to survive in racing environments, the theory was sound, and would appear in Formula One a few years later, first in Colin Chapman's Lotus cars, and even more directly in the Brabham BT46 'Fan Car' of 1977. Jim Hall is a programmer for the FreeDOS project and the original developer of the GNU Robots program. ... Wikiquote has a collection of quotations related to: Colin Chapman Anthony Colin Bruce Chapman (born 9 May 1928 in London - died 16 December 1982) was an influential designer, inventor, and builder in the automotive industry. ... Lotus Cars is a British manufacturer of sports cars and racing cars based in East Anglia, and formed as Lotus Engineering Ltd. ... The Brabham Racing Organisation was a Formula One racing team founded by Jack Brabham and Ron Tauranac. ... For the album by Ash, see 1977 (album). ...

The Lola T-70, T-160, T-163, and T-260 were built for various customers and were generally either Chevy or Ford powered. The Lola T-70 driven by John Surtees won the first Can Am championship. Chevrolet, or Chevy, is a brand of automobile that is now part of the General Motors group. ... Ford may mean a number of things: A ford is a river crossing. ... John Surtees (Ferrari) at the British Grand Prix 1964 John Surtees (born February 11, 1934) is a British racing driver, and the only one to have become World Champion on both two and four wheels. ...

The Porsche 908 spyder was used in Can Am, but was underpowered (350 hp) and mainly used by underfunded teams. It did win the 1970 Road Atlanta race though. The 917PA, a spyder version of the 917K Le Mans car, was raced, but its normally aspirated flat-12 was underpowered (530hp). In 1971 the 917/10 was introduced. This was still not turbocharged, but was lighter and had cleaner body work, and Jo Siffert managed to finish fourth in the championship. For 1972 the 917/10K with a turbo charged 900 horsepower 5 liter flat-12 was introduced. Prepared by Roger Penske and driven by Mark Donohue and George Follmer these cars won six of the nine races. In 1972 Porsche introduced an even more powerful car, the 917/30. Nicknamed the Turbopanzer this car was truly a monster. With 1100 horsepower (820 kW) on tap from a 5.4 liter flat-12 and better downforce this car won every race in the 1973 championship. In 1975 Mark Donohue drove this car to a closed course world speed record of 221 mph (356 km/h) at the Talladega Superspeedway. It did over 250 mph (402 km/h) on the straights. It also helped kill Can Am by being one of the most expensive cars Porsche ever made. No one could compete with this outrageous machine with the budgets of the day. For 1974 a 3 miles per US gallon maximum fuel consumption rule was introduced but the SCCA, partially due to the current fuel crisis, but also to try and take the teeth out of Porsche's dominance. The 917/30 only raced once that year The Porsche 908 was a racing car from Porsche, introduced from 1968 as a successor to the Porsche 906/Porsche 907/Porsche 910 models, and designed under Ferdinand Piech. ... Road Atlanta is a 2. ... Porsche 917/20 Pink Pig in Stuttgart Zuffenhausen Porsche 917/30 in Stuttgart Zuffenhausen The type 917 gave Porsche its first overall wins at the 24 hours of Le Mans in 1970 and 1971. ... A flat-12 is an internal combustion engine in flat configuration, having 12 cylinders. ... Jo Siffert, born July 7, 1936 – died October 24, 1971, was a Swiss race car driver. ... Penske PC23 car Roger Penske (born February 20, 1937 in Shaker Heights, Ohio) is the owner of a very successful automobile racing team Penske Racing, the Penske Corporation, and other automotive related businesses. ... Talladega Superspeedway is now the official name of a motorsports complex located north of Talladega, Alabama, that was formerly Alabama International Motor Speedway. ... At the height of the crisis in the United States, drivers of vehicles with odd numbered license plates were allowed to purchase gasoline only on odd-numbered days of the month, while drivers with even-numbers were limited to even-numbered days. ...

Decline

1974 was the last year for the Can Am championship. Spiraling costs, a recession in North America following the oil crisis, and dwindling support and interest led to the series being cancelled the end of the 1974 season. The Can Am name still held enough drawing power to lead SCCA to introduce a revised Can Am series in 1977 based on rebodied chassis from the recently canceled Formula A/5000 series, but it never achieved the glory and success of the original. An Energy Crisis is any great shortfall (or price rise) in the supply of energy to an economy. ...

External links

• CanAm History site
• Can-Am History, by Michael Stucker
• Can-Am Results 1966-1986
• Birth of Can-Am Racing, by Leon Mandel
• Can-Am at Laguna Seca, Monterey, California, by John S. Krill
• Can-Am Circus by Stéphane Lebiez