Specification 312 B2




First Race: Brands Hatch Champions Race
Engine: Type 001/1, rear-mounted 180 V12 derived from 001, 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 / 2991.802 cm3
Compression Ratio: 11.5:1
Max. Power Output: 480 bhp at 12500 rpm
Timing Gear: 4 valves per cylinder, 2 overhead camshafts 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 with coil ignition unit
Lubrication System: Dry sump with radiator
Wheel drive: Rear
Clutch: Borg & Beck multi-plate
Gearbox: 621 rear longitudinal overhanging 5 speed + reserve
Differential: Multi-plate limited-slip differential
Gear Ratios: Variable depending on track
Chassis: 621/A  monococque body, aluminium panels riveted on a tubular steel, partially stress-bearing engine
Front Suspension: Double wishbones, upper rocker arm, lower wishbone, inboard/damper units and anti-roll bar
Rear Suspension: Double wishbones, single upper radius arm, horizontal spring/damper units over the differential and anti-roll bar
Brakes: Discs and Lockheed callipers, inboard at rear, separate hydraulic circuits, adjustable on both 2 axles
Battery: Safa 12 Volt
Steering: Rack and pinion
Length: 3,850 mm
Width: 750 mm
Height: 900 mm
Wheelbase 2,426 mm 
Front Track: 1,523 mm
Rear Track: 1,580 mm
Kerb Weight (with water and oil): 560 kg
Front Tyres: 8.6-20.0-13" , Firestone
Rear Tyres: 13.5-24.0-15", Firestone
Rims: Cast in light alloy, front 10x13", rear 15x15"
Fuel Tank: 233 litres, side mounted in canvas / Pirelli rubber
Bodywork: Single-seater body in composite materials and aluminium



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