The A-Z of Racing Cars

Boxer PR 276-Hart

Country GB
Year 1977
Engine Hart 420R
Engine Type L4
Cams 2
Valves/cyl 4.0000
Compression "11,5"
Bore 93.500
Stroke 72.600
Capacity (cc) 1995
Power (at revs) 308 HP/9500
Torque 237 Nm/7800
Ignition Lucas
Fuel system Lucas f.i.
Chassis type Aluminium monocoque
Body type single seater
Designer J. Clarke
Front suspension "coil, double wishbone"
Rear suspension "coil, wishbone and links"
Shock absorbers Armstrong
Engine position mid
Wheelbase (mm) 2540
Front track (mm) 1244
Rear track (mm) 1371
Weight (kg) 505
Drive rear
Number of gears 5
Gearbox Hewland FG 400
Fuel tank size (litres)
Front brake type disc
Rear brake type disc
Front rims 10 x 13
Rear rims 15 x 13
Tyres Goodyear
Front tyres 9.2/20.0-13
Rear tyres 12.2/23.0-13
Maximum speed (kph) 285

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