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1972 Triumph Spitfire IV

Information

Triumph

Quick Facts

Build Start: 1972

Available in other variants

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General

Build Start: 1972
Model Variant: Spitfire

Dimensions

Wheelbase: 2110mm
Track/tread (rear): 1220mm
Width: 1488mm
Ground clearance: 127mm
Kerb weight: 734kg
Fuel Tank Capacity: 38litres
Track/tread (front): 1245mm
Length: 3786mm
Height: 1125mm

Body Details

Body Type: 2 seater convertible/cabriolet

Engine Details

Engine Position: front
Top Gear Ratio: 1
Engine Manufacturer: Triumph
Capacity: 1.3 litre (1296cc)
Bore/stroke ratio: 0.97
Compression Ratio: 9:1
Engine Coolant: Water
Aspiration: Normal
Engine Layout: longitudinal
Gearbox: 4 speed manual
Final Drive Ratio: 3.89
Engine Type: naturally aspirated petrol
Cylinders: Straight 4
Bore × Stroke: 73.7 × 76mm
Specific output(DIN): 47.1 bhp/litre0.77 bhp/cu in
Specific torque(DIN): 70.99 Nm/litre, 0.86 ft·lb/cu3
Crankshaft Bearings: 3
Catalytic converter: N

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Performance

Drive Wheels: rear wheel drive
maximum power output(DIN): 62 PS (61 bhp) (45 kW)at 5500 rpm
maximum torque(DIN): 92 Nm (68 ft·lb) (9.4 kgm)at 2900 rpm
Acceleration 0-80km/h (50mph): 10s
Power-to-weight ratio: 84.26 PS/tonne (1000 kg)
Weight-to-power ratio: 16.14kg/kW
Maximum Speed: 156km/h

Fuel Consump.

Fuel system: 2 SU carbs

Chassis & Geomtry

Turns Lock-to-Lock: 3.750
Rear suspension: I.SwSemiAx.TL.
Front Suspension: I.W.CS.ARB.
Length:Wheelbase Ratio: 1.79
Weight Distribution: 56% front

Brakes

Braked area: 1322 cm2
bmep (brake mean effective pressure): 892.1kPa
Brakes F/R: Di/Dr

Other

RAC rating: 13.5
Steering: rack & pinion
Number of doors: 2
Valve Gear: overhead valve (OHV), 2 valves per cylinder, 8 valves in total
Unitary Capacity: 324cc

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