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General data  
Grand Prix season/s 1973
Racing drivers Jacky Ickx, Arturo Merzario
Race numbers Various
VIN span 0010 - 0012
Number produced 3
Presentation -
   
Technical Specifications  
Chassis Aluminium monocoque built by Thompson/England
Length 4335 mm
Width 2056 mm
Height 900 mm
Wheelbase 2500 mm
Front track 1625 mm
Rear track 1605 mm
Front suspension Independent wheel suspension, delta wishbones at the bottom, wishbone at the top, shock absorber unit, anti-roll bar
Rear suspension Independent wheel suspension, delta wishbones at the bottom, wishbone at the top, shock absorber unit, anti-roll bar, one trailing link per side, anti-roll bar
Front tyres 13“,9.20 x 20.0 x 13“
Rear tyres 13“, 13.10 x 26.0 x 13“
Tyres Goodyear slicks
Wheels Campagnolo alloy rims - 5 spokes design and central locking
Front brakes Lockheed ventilated disc brakes
Rear brakes Lockheed ventilated disc brakes, mounted on gearbox
Weight Approx. 578 kg, including oil and water
Fuel tank 2 fuel tanks, with Approx. 230 litres total tankage
Body material Fiberglas
   
Engine  
Type Mid-Engine
Number of cylinders V12 – 180°
Displacement 2991 ccm
Bore and stroke 80 x 49,6 mm
Camshaft 2 overhead per cylinderbank
Valves 4 per cylinder
Valve control Valve springs
Compression ratio 11,5:1
Lubrication Dry sump
Ignition Marelli Dinoplex ignition
Fuel management Lucas indirect injection
Maximum power 485 hp – 12.500 rpm
Gearbox 5 gears + rev., longitudinal installed at the end of the engine
Clutch Multi disc clutch
Engine weight Approx. 170 kg
   
Team  
Team manager S. Colombo
Design engineer/s Mauro Forghieri, G. Bussi,
Engine Mauro Forghieri, Franco Rocchi
   
VINs  
  0010, 0011, 0012
Good to know:
  • Debut Grand Prix Spain 1973
  • 2nd and 3rd version of the 312 B3 were used in 1974 season
  • 6th place Constructors World Championship with 12 points
  • 9th place Drivers World Championship 1973 by Jacky Ickx with 12 points
  • No Grand Prix victory
 
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