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  Alfa Romeo 33/TT/12
 

  Article Image gallery (63) Chassis (5) Specifications  
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Country of origin:Italy
Produced from:1973 - 1975
Numbers built:6 - 12
Predecessor:Alfa Romeo 33/TT/3
Successor:Alfa Romeo 33/SC/12 Turbo
Author:Wouter Melissen
Last updated:November 27, 2013
Download: All images

Engine
Configuration Tipo 115.12 180º V12
Location Mid, longitudinally mounted
Weight 180 kilo / 396.8 lbs
Construction light alloy block and head
Displacement 2,995 cc / 182.8 cu in
Bore / Stroke 77.0 mm (3 in) / 53.6 mm (2.1 in)
Compression 12.0:1
Valvetrain 4 valves / cylinder, DOHC
Camshaft Gear driven
Fuel feed Lucas Fuel Injection
Lubrication Dry sump
Aspiration Naturally Aspirated
Power 500 bhp / 373 KW @ 11,500 rpm
BHP/Liter 167 bhp / liter

Drivetrain
Body fibreglass
Chassis alloy tubular spaceframe with stressed aluminium panels
Front suspension double wishbones, coil springs over telescopic shock absorbers, anti-roll bar
Rear suspension single top links, twin lower links, twin trailing arms, coil springs over telescopic shock absorbers, anti-roll bar
Steering rack-and-pinion
Brakes ventilated discs, all-round, rear in-board
Gearbox 5 speed Manual
Clutch Dry, dual plate
Drive Rear wheel drive

Dimensions
Weight 670 kilo / 1,477 lbs
Length / Width / Height 3,800 mm (149.6 in) / 2,050 mm (80.7 in) / 960 mm (37.8 in)
Wheelbase / Track (fr/r) 2,340 mm (92.1 in) / 1,430 mm (56.3 in) / 1,470 mm (57.9 in)
Fuel tank 120 Litre (31.7 Gallon US / 26.4 Gallon Imperial)
Tyres (fr/r) 9.0/20 x 13 / 14/24 x 13

Performance figures
Power to weight 0.75 bhp / kg
Top Speed 330 km/h (205 mph)

Race history
Major wins
1974 Monza 1000 km (Arturo Merzario / Mario Andretti in AR 11512-008)
1975 Dijon 800 km (Arturo Merzario / Jacques Laffite in AR 11512-008)
1975 Monza 1000 km (Arturo Merzario / Jacques Laffite in AR 11512-008)
1975 Spa 1000 km (Henri Pescarolo / Derek Bell in AR 11512-010)
1975 Pergusa 1000 km (Arturo Merzario / Jochen Mass in AR 11512-008)
1975 Nurburgring 1000 km (Arturo Merzario / Jacques Laffite in AR 11512-008)
1975 Zeltweg 1000 km (Henri Pescarolo / Derek Bell in AR 11512-010)
1975 Watkins Glen 6 Hours (Henri Pescarolo / Derek Bell in AR 11512-010)
1975 Targa Florio (Nino Vaccarella / Arturo Merzario in AR 11512-008)
Drivers of note Mario Andretti, Derek Bell, Jacky Ickx, Jacques Laffite, Jochen Mass, Arturo Merzario, Henri Pescarolo, Brian Redman, Clay Regazzoni, Carlos Reutemann, Jody Scheckter and Rolf Stommelen

Auctions
Past sales

Resources
Suggested reading
  • Alfa Romeo Tutte le Vetture Dal 1910, by Luigi Fusi
  • Alfa Romeo Tipo 33, by Peter Collins and Ed McDonough
Related articles
Useful links

  Article Image gallery (63) Chassis (5) Specifications