Ferrari 312 B2

Active: 1971 - 1973 Team: Scuderia Ferrari SpA

The B2 had a slightly revised engine and a completely modified suspension system compared to the Ferrari 312 B. To reduce the non-suspended weight, the rear springs were mounted almost horizontally over the gearbox. The spring-shock absorber groups were also lengthened and shifted towards the centre of the car.

The car was good for just a single win with Jacky Ickx while Clay Regazzoni put the car in third on two occasions.

Specifications

Chassis: Type 621/A monocoque body, aluminium panels riveted on a tubular steel structure, partially stress-bearing engine
Bodywork: Aluminium single-seater body with composite elements
Front Suspension: Double wishbones: upper rocker arm, lower wishbone, inboard spring/damper units and anti-roll bar
Rear Suspension: Single upper radius arm, horizontal spring/damper units over the differential and anti-roll bar
Brakes: Lockheed discs and callipers, inboard at rear, separate adjustable hydraulic circuits on the two axles
Steering: Rack and pinion
Transmission: Rear-wheel drive, Borg & Beck multi-plate clutch, 621 rear longitudinal overhanging 5-speed gearbox + reverse, multi-plate limited-slip differential
Gear Ratios: Variable depending on track
Front Tyres: 8.6-20-13", Firestone
Rear Tyres: 13.5-24.0-15", Firestone

Wheels: cast light alloy; front 10x13", rear 15x15"

Dimensions

Length: 3,850 mm
Width: 750 mm
Height: 900 mm
Wheelbase and Front/ Rear Track: 2,426/1,523/1,580 mm
Kerb Weight (with water and oil): 560 kg

Engine

Designation: Type 001/1, 180° V12 derived from the 001, light alloy cylinder block and head, aluminium wet liners, 112 mm connecting rods, water cooled
Bore & Stroke: 80 x 49.6 mm
Unitary and Total Displacement: 249.317/2,991.802 cc
Compression Ratio: 11.5:1
Max. Power Output: 480 bhp at 12,500 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, Marelli Dinoplex electronic capacitive discharge with coil ignition unit
Lubrication System: Dry sump with radiator