 1971 33 TT3 Spider |
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Autodelta was the name of the Alfa Romeo's competition department. Established in 1961 as Auto-Delta, the company was started by Carlo Chiti, a former Alfa Romeo and Ferrari engineer, and Ludovico Chizzola, an official Alfa Romeo dealer. The team was officially made a department of Alfa Romeo on March 5th of 1963. In 1964 it officially became Autodelta SpA.
The Alfa Romeo Tipo 33 name was used from 1967 through 1977 for Alfa Romeo sports racing prototypes and even a few road going cars. Alfa Romeo's history in sports car racing goes back to pre-World War vintage. They legacy continued in 1950 and 1951 as they won the first two Formula 1 World Championships. After this accomplishment, they retired from racing to focus on the production of road-going vehicles. Their absence from racing would be only for a short time, as their Zagato-bodied TZ1 was introduced in 1963. Its light alloy body, tubular frame, disc brakes, and independent suspension gave the vehicle superior handling and performance. The work had been managed by Carlo Chiti of Autodelta, a new competition department formed by Alfa Romeo. The Giula 1600 GTA soon followed and was a dominate force at many of their racing expeditions.
During the early 1960s, Alfa Romeo began designing a new racer which was given the codename '105.33'. The designs were later sent to Autodelta for further development. The '105' was later dropped and the vehicle became known as the '33' when it was introduced for the 1967 season. As the iterations of the Tipo 33 evolved, the names of the original cars became known as the '33/2', with the '2' representing their two-liter engines. Mounted mid-ship was a quad-cam V8 engine that was highly tuned to produce an impressive 270 horsepower. For its inaugural race at the Belgium hillclimb the Tipo 33/2 proved its potential by emerging victorious. The rest of the season was plagued by mechanical issues which made the racer unreliable.
Work and testing to evolve the Tipo 33 continued for the 1968 season. The bodywork and engine were slightly improved in an effort to resolve reliability issues and to improve the vehicles performance. Udo Schütz and Nino Vaccarella were able to navigate the 2-liter Tipo 33 at the 24 Hours of Daytona. A few other impressive victories and podium finishes followed throughout the season, but the Porsche rivals with their bigger engines often outpaced the Alfa Romeos. Alfa Romeo team finished third in the World Championship for 1968.
The Tipo 33/2 were able to secure many class victories but it was not powerful enough to contend for overall victories. Work began on a three-liter unit that would be able to contend with the competition. The V8 3-liter unit was given four valves per cylinder and adapted to an aluminum monocoque type chassis which had shrunk in size by 10 cm. At the 12 Hours of Sebring in 1969, Alfa Romeo debuted the 33/3. The racer had 400 horsepower and in the same class as the Ferrari 312P and the Porsche 908. The Alfa Romeo team would have a dismal season and often started the 33/2 in place of the 33/3.
For 1970 there were two bodystyles created, a long and short version. The long tail spider version was known as the Le Mans Spider. Worked continued to improve the vehicles reliability issues. The car was unable to contend with the dominate Porsche 917 and Ferrari 512.
In 1970 an Alfa Romeo Tipo 33/3 was in Steve McQueen's movie 'Le Mans'.
In 1971 the Tipo 33/3 was given a five-speed gearbox. Many of the issues had been resolved and the 33/3 had a rather successful season, finishing second in the Constructor's World Championship. Rolf Stommelen and Nanni Galli had driven their cars to class wins at the 1000km Buenos Aires. At Sebring, the class win victory was repeated. At the 1000km Brands Hatch, De Adamich and Pescarolo were able to outpace the Porsche 917's and secure an overall victory. Vaccarella and Hezemans won outright victories at the Targa Florio, the vehicles most impressive accomplishment of the season.
Near the close of the 1971 season, Autodelta introduced a new prototype racer dubbed the 33 TT3. The 'TT' meant Tellaio Tubulare - meaning tubular chassis for the vehicles spaceframe type chassis. Much had been learned from the prior racers and adapted to this new vehicle. The weight distribution was greatly improved by moving the driving position forward and relocating the gearbox ontop of the engine.
In 1973 a Carlo Chiti-designed 12-cylinder box engine was placed in the vehicle. Alfa Romeo's fitted with this engine were known as the 33 TT 12. With the increase in power, the Alfa Romeo team won many of the races in 1974 and by 1975 was dominating the competition. The Alfa Romeo team scored seven victories in eight championship races. They repeated their accomplishments in 1976 with the Tipo 33 SC 12.
The Tipo 33 SC 12 had a 2995cc 12-cylinder boxer engine that produced 520 horsepower. Alfa Romeo secured the Sports Car Championship in 1977. The final race of the season had been raced with a turbocharged version of the 12-cylinder engine which increased horsepower to 640.
Part of the reasons for Alfa Romeo's success with the Tipo 33 models were its continued development, excellent drivers and dwindling competition. Ferrari had left sports car racing in 1974 to compete in Formula One. FIA had added new regulations throughout the early 1970's which made formidable contenders such as the Porsche 917 and Ferrari 512 ineligible to compete.
By Daniel Vaughan | Aug 2007
For more information and related vehicles, click hereDuring the early 1960s, Alfa Romeo began designing a new racer which was given the codename '105.33'. The designs were later sent to Autodelta for further development. The '105' was later dropped and the vehicle became known as the '33' when it was introduced for the 1967 season. As the iterations of the Tipo 33 evolved, the names of the original cars became known as the '33/2', with the '2' representing their two-liter engines. Mounted mid-ship was a quad-cam V8 engine that was highly tuned to produce an impressive 270 horsepower. For its inaugural race at the Belgium hillclimb the Tipo 33/2 proved its potential by emerging victorious. The rest of the season was plagued by mechanical issues which made the racer unreliable.
Work and testing to evolve the Tipo 33 continued for the 1968 season. The bodywork and engine were slightly improved in an effort to resolve reliability issues and to improve the vehicles performance. Udo Schütz and Nino Vaccarella were able to navigate the 2-liter Tipo 33 at the 24 Hours of Daytona. A few other impressive victories and podium finishes followed throughout the season, but the Porsche rivals with their bigger engines often outpaced the Alfa Romeos. Alfa Romeo team finished third in the World Championship for 1968.
The Tipo 33/2 were able to secure many class victories but it was not powerful enough to contend for overall victories. Work began on a three-liter unit that would be able to contend with the competition. The V8 3-liter unit was given four valves per cylinder and adapted to an aluminum monocoque type chassis which had shrunk in size by 10 cm. At the 12 Hours of Sebring in 1969, Alfa Romeo debuted the 33/3. The racer had 400 horsepower and in the same class as the Ferrari 312P and the Porsche 908. The Alfa Romeo team would have a dismal season and often started the 33/2 in place of the 33/3.
For 1970 there were two bodystyles created, a long and short version. The long tail spider version was known as the Le Mans Spider. Worked continued to improve the vehicles reliability issues. The car was unable to contend with the dominate Porsche 917 and Ferrari 512.
In 1970 an Alfa Romeo Tipo 33/3 was in Steve McQueen's movie 'Le Mans'.
In 1971 the Tipo 33/3 was given a five-speed gearbox. Many of the issues had been resolved and the 33/3 had a rather successful season, finishing second in the Constructor's World Championship. Rolf Stommelen and Nanni Galli had driven their cars to class wins at the 1000km Buenos Aires. At Sebring, the class win victory was repeated. At the 1000km Brands Hatch, De Adamich and Pescarolo were able to outpace the Porsche 917's and secure an overall victory. Vaccarella and Hezemans won outright victories at the Targa Florio, the vehicles most impressive accomplishment of the season.
Near the close of the 1971 season, Autodelta introduced a new prototype racer dubbed the 33 TT3. The 'TT' meant Tellaio Tubulare - meaning tubular chassis for the vehicles spaceframe type chassis. Much had been learned from the prior racers and adapted to this new vehicle. The weight distribution was greatly improved by moving the driving position forward and relocating the gearbox ontop of the engine.
In 1973 a Carlo Chiti-designed 12-cylinder box engine was placed in the vehicle. Alfa Romeo's fitted with this engine were known as the 33 TT 12. With the increase in power, the Alfa Romeo team won many of the races in 1974 and by 1975 was dominating the competition. The Alfa Romeo team scored seven victories in eight championship races. They repeated their accomplishments in 1976 with the Tipo 33 SC 12.
The Tipo 33 SC 12 had a 2995cc 12-cylinder boxer engine that produced 520 horsepower. Alfa Romeo secured the Sports Car Championship in 1977. The final race of the season had been raced with a turbocharged version of the 12-cylinder engine which increased horsepower to 640.
Part of the reasons for Alfa Romeo's success with the Tipo 33 models were its continued development, excellent drivers and dwindling competition. Ferrari had left sports car racing in 1974 to compete in Formula One. FIA had added new regulations throughout the early 1970's which made formidable contenders such as the Porsche 917 and Ferrari 512 ineligible to compete.
By Daniel Vaughan | Aug 2007
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 1972
Alfa Romeo
models |
| Alfa Romeo 2000 GTV |
| Alfa Romeo 33/3 |
| Alfa Romeo Alfetta |
| Alfa Romeo Berlina 2000 |
| Alfa Romeo Junior Zagato 1600 |
| Alfa Romeo Montreal |
| Alfa Romeo SC 12 Turbo |
| Alfa Romeo Spider Veloce |
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| 1971 33 TT3 Spider |
