Specification 312 B3-73




First Race: Spanish Grand Prix
Engine: Type 001/11, rear-mounted 180° V12 derived from 001/1, light alloy cylinder block and heads, aluminium wet cylinder liners, water cooling
Bore & Stroke: 80 x 49.6 mm
Unitary and total capacity: 249.317 / 2991.801 cm3
Compression Ratio: 11.5:1
Max. Power Output: 485 bhp at 12500 rpm
Timing Gear: 4 valves per cylinder, 2 overhead cams per cylinder bank, gear driven off the rear of the engine
Fuel Feed: Lucas indirect injection
Ignition: Single plug, Magneti Marelli Dinoplex electronic capacitive discharge
Lubrication System: Dry sump
Wheel drive: Rear
Clutch: Borg & Beck multi-plate
Gearbox: 628 longitudinal overhanging 5 speed + reserve, in unit with differential
Differential: Limited-slip
Gear Ratios: Variable depending on track
Chassis: 628 monococque in boxed sheet aluminium
Front Suspension: Double wishbones, inboard spring/damper units and anti-roll bar
Rear Suspension: Double wishbones, lower wishbones, upper arm, single upper radius and anti-roll bar
Brakes: Discs and Lockheed callipers, inboard at rear, separate hydraulic circuits, adjustable on both 2 axles
Battery: Safał 12 Volt
Steering: Rack and pinion
Length: 4,335 mm
Width: 2,056 mm
Height: 900 mm
Wheelbase 2,500 mm 
Front Track: 1,625 mm
Rear Track: 1,605 mm
Kerb Weight (with water and oil): 578 kg
Front Tyres: 9.0-20.0-13" , Goodyear
Rear Tyres: 14.0-26.0-13", Goodyear
Rims: Cast in light alloy, front 10x13", rear 16x13"
Fuel Tank: 230 litres, 2 side  tanks, NO 98/100 petrol
Bodywork: Single-seater body in composite materials and aluminium



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