Alfa Romeo Tipo 33
| Alfa Romeo 33 | |
|---|---|
| Overview | |
| Manufacturer | Alfa Romeo |
| Production | 1966-1967 |
| Designer | Carlo Chiti |
| Body and chassis | |
| Class | Group 6 Prototype-Sports Cars |
| Layout | RMR layout |
| Powertrain | |
| Engine | 1995 cc V8 |
| Alfa Romeo 33/2 | |
|---|---|
| Overview | |
| Manufacturer | Alfa Romeo |
| Production | 1967-1968 |
| Designer | Autodelta |
| Body and chassis | |
| Class |
Group 6 Prototype-Sports Cars Group 4 Sports Cars |
| Layout | RMR layout |
| Powertrain | |
| Engine | 1995 cc V8 270 bhp @ 9600 rpm 2500 cc V8 315 bhp |
| Dimensions | |
| Curb weight | 580 kg (1278 lb) |
| Alfa Romeo 33/3 Alfa Romeo 33TT3 |
|
|---|---|
| Overview | |
| Manufacturer | Alfa Romeo |
| Also called | Alfa Romeo |
| Production | 1967-1968 (33/3) 1969-1972 (33TT3) |
| Designer | Autodelta |
| Body and chassis | |
| Class |
Group 6 Prototype-Sports Cars Group 5 Sports Cars |
| Layout | RMR layout |
| Powertrain | |
| Engine | 2998 cc V8 400 bhp @ 9000 rpm 440 bhp @ 9800 rpm |
| Dimensions | |
| Curb weight | 700 kg/650 kg (1971) (1543 lb)/(1433 lb) (1971) |
| Alfa Romeo 33TT12 | |
|---|---|
| Overview | |
| Manufacturer | Alfa Romeo |
| Production | 1973-1976 |
| Designer | Autodelta |
| Body and chassis | |
| Class | Group 5 Sports Cars |
| Layout | RMR layout |
| Powertrain | |
| Engine | 2995 cc F12 500 bhp @ 11000 rpm |
| Dimensions | |
| Curb weight | 670 kg (1477 lb) |
| Alfa Romeo 33SC12 Alfa Romeo 33SC12 Turbo |
|
|---|---|
| Overview | |
| Manufacturer | Alfa Romeo |
| Production | 1976-1977 |
| Designer | Autodelta |
| Body and chassis | |
| Class | Group 6 Two-Seater Racing Cars |
| Layout | RMR layout |
| Powertrain | |
| Engine | 2993 cc F12 520 bhp @ 12000 rpm 2134 cc F12 twin-turbo 640 bhp @ 11000 rpm |
| Dimensions | |
| Curb weight | 720 kg (1587 lb) |
The Alfa Romeo Tipo 33 was a sports racing prototype raced by the Alfa Romeo factory-backed team between 1967 and 1977. These cars took part for Sport Cars World Championship, Nordic Challenge Cup, Interserie and CanAm series. A small number of road going cars were derived from it in 1967, called Alfa Romeo 33 Stradale.
With the 33TT12 Alfa Romeo won the 1975 World Championship for Makes, and with the 33SC12 the 1977 World Championship for Sports Cars, taking the first place in all eight of the championship races.
Alfa Romeo started development of the Tipo 33 in the early 1960s, with the first car being built in 1965. It was sent to Autodelta to be completed and for additional changes to be made. It used an Alfa Romeo TZ2 straight-4 engine, but Autodelta produced its 2.0 litre V8 soon after. 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 1967 World Sportscar Championship season, its best result a 5th at the Nürburgring 1000, co-driven by Zeccoli and Roberto Bussinello.
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