Alfa Romeo Tipo 33/3
Alfa Romeo Tipo 33
Alfa Romeo started development of Tipo 33 in early 1960s, first car being built in 1965. First version was sent to 1963 established
Autodelta to be finished and for additional changes. First car was using Alfa Romeo TZ2 straight-4 engine. But soon Autodelta finished its 2.0 litre V8.
The 2000 cc (122ci) Tipo 33 mid-engined prototype debuted on 12 March 1967 at the Belgian hillclimbing event at Fléron, with Teodoro Zeccoli winning. The first version was named as “periscope” because it had very characteristic air inlet. It was powered by a 1995 cc (122ci) 90° V8 of 270 hp (201 kW), with a large-diameter tube frame. The original T33 proved unreliable and uncompetitive in the World Sportscar Championship, its best result a 5th at the Nürburgring 1000, co-driven by Zeccoli and Roberto Bussinello.
Alfa Romeo 33/2
|Alfa Romeo 33/2|
|Engine|| 1995 cc V8|
270 bhp @ 9600 rpm
2500 cc V8 315 bhp
|Weight||580 kg (1278 lb)|
In 1968, Alfa Romeo's subsidiary, Autodelta, created an evolution model called 33/2. A road version, dubbed Alfa Romeo 33 Stradale, was also introduced. At the 24 Hours of Daytona, the Porsche 907 with 2.2L engines were dominating the overall race, but Alfa took the 2-Litre class win, with Udo Schütz and Nino Vaccarella, a win repeated at the Targa Florio, where Nanni Galli and Ignazio Giunti also took second place overall, followed by teammates Lucien Bianchi and Mario Casoni. Galli and Giunti then won the class at the 1000km Nürburgring, where the 2.5 L version finished for the first time, 4th place in the 3.0 L class with Schütz and Bianchi. However, in most races, the Alfa drivers were outclassed by their Porsche rivals which used bigger engines. In 1968, the car was used mainly by privateers, winning its class in the 1000km Monza, Targa Florio and Nürburgring.
Alfa Romeo 33/3
|Alfa Romeo 33/3
Alfa Romeo 33TT3
|Engine|| 2998 cc V8|
400 bhp @ 9000 rpm
|Weight|| 700 kg/650 kg (1971)|
(1543 lb)/(1433 lb) (1971)
In 1969 at the 12 Hours of Sebring, the Alfa Romeo 33/3 made its debut. The engine was enlarged to 2998cc with 400 hp, which put the 33/3 in the same class as the Porsche 908 and the Ferrari 312P. The chassis was now built as a monocoque. After a dismal 1969, in 1970, the bigger 5.0 L Porsche 917 and Ferrari 512 dominated, yet Toine Hezemans and Masten Gregory took third overall at Sebring, and Andrea De Adamich and Henri Pescarolo won the 1000km Zeltweg in their class, with a second place overall. Also in 1970, Alfa T 33/3 was one of the "actors" of Steve McQueen's movie "Le Mans", released in 1971.
In 1971, the Alfa Romeo racing effort was finally successful. Rolf Stommelen and Nanni Galli won their class at the 1000km Buenos Aires (followed by De Adamich and Pescarolo), before taking another class win (and second overall) at Sebring. De Adamich and Pescarolo later won outright at the 1000km Brands Hatch, a significant against the "invincible" Porsche 917. They were then taking a class win at Monza (where Alfa Romeo took the three podium slots in the prototype class) and another one at Spa. At the Targa Florio, Vaccarella and Hezemans won outright, followed by teammates De Adamich and Gijs Van Lennep. Hezemans and Vaccarella won their class at Zeltweg, and De Adamich and Ronnie Peterson won overall at Watkins Glen.
When Nastasi purchased it in 1985, the car had been updated to 1971 specs. Here it is in the livery of Nino Vaccarella's Targa Florio winning T33/3, although it is unknown if this is the actual chassis used by Vaccarella
1972 and 1973
Alfa Romeo 33 TT
Alfa Romeo T33/4
A 4 litre version was entered to 1972 and 1974 CanAm series by Otto Zipper, driver was Scooter Patrick. Autodelta was also one of entrants with T33/4 in season 1974. T33/3 version was also used in CanAm series earlier.
Alfa Romeo Tipo 33 TT 12
|Alfa Romeo 33TT12|
|Engine|| 2995 cc F12|
500 bhp @ 11000 rpm
|Weight||670 kg (1477 lb)|
1973 was introduced 33 TT 12 (Telaio Tubolare, tubular chassis) which had Carlo Chiti-designed 12 cylinder 3.0L flat engine (500 bhp). Season 1973 was more or less development time and in 1974 the car took win at Monza 1000 km and finished the season with second place in the championship. It wasn’t until 1975 when after years of trying Alfa Romeo won
sport cars world championship. The season was almost total domination, seven wins in eight races. Winning drivers were: Arturo Merzario, Vittorio Brambilla, Jacques Laffite, Henri Pescarolo, Derek Bell and Jochen Mass. For 1976 Autodelta was concentrating other things and the car was rarely used in competitions.
Alfa Romeo 33SC12
|Alfa Romeo 33SC12|
|Engine|| 2993 cc F12|
520 bhp @ 12000 rpm
2134 cc F12
640 bhp @ 11000 rpm
|Weight||720 kg (1587 lb)|
As a successor of the 33TT12 1976 appeared the 33SC12, SC referring for SCatolato a boxed chassis. 3.0 L flat-12 engine had now 520 bhp (390 kW). With this car Alfa Romeo won again the sports car world championship in 1977. The SC12 won every race on that season, winning drivers were: Arturo Merzario, Jean-Pierre Jarier and Vittorio Brambilla. On the Salzburg ring the car reached an average speed of 203.82 km/h (126.6 mph), on that same race was also tested 2134 cc turbocharged SC12 producing 640 bhp, Arturo Merzario finished second with that car. The SC12 Turbo was Alfa's first twin turbocharged V12-engine and it was introduced around same time as Renault's Formula One turbo engine. In Alfa Romeo engine both engine rows were fed with own turbocharger, that feature was followed by many racecar makers in the following years.
Alfa Romeo 33 Stradale
In 1967 Autodelta made a street version of the 33 race car, the Alfa Romeo 33 Stradale. Stradale is Italian for "street".
- Alfa Romeo T33, striking example for the use of Rosso Corsa
- Alfa Website also with Racing with History
- World Sportscar Championship 1968 results
- World Sportscar Championship 1977 results
- World Sportscar Championship 1975 results
- 1972 Racing season Alfa vs. Ferrari
- Can-Am Championship results
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