Key facts

1973 Austin Allegro 1500 information summary

What body style?
sedan/saloon with 4/5 seats
How long?
3855 mm
How heavy?
850 kg
What size engine?
1.5 litre, 1485 cm3
How many cylinders?
4, Straight
How much power?
70 PS / 69 bhp / 51 kW @ 5600 rpm
How much torque?
104 Nm / 77 / 10.6 kgm @ 3100 rpm


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Austin logo

British Leyland (Austin-Morris) Limited

1973 Austin Allegro 1500 technical specifications


The Austin Allegro 1500 is a front wheel drive automobile, with its engine placed in the front, and a 2 door saloon (sedan) bodyshell.
Its 1.5 litre engine is a naturally aspirated, single overhead camshaft, 4 cylinder that develops 69 bhp (70 PS/51 kW) of power at 5600 rpm, and maximum torque of 104 N·m (77 lb·ft/10.6 kgm) at 3100 rpm.
The engine delivers its power through to the wheels via a 5 speed manual 'box.
Its claimed kerb weight is 850 kg.
1973 Austin Allegro 1500 data
1973 Austin Allegro 1500 data
Body type4/5 seater sedan/saloon
Number of doors2
dimensions & weights
Wheelbase 2432 95.7
Track/tread (front)
Track/tread (rear)
Length 3855 151.8
Width 1613 63.5
Height 1397 55
Ground clearance 159 6.3
length:wheelbase ratio 1.59
Kerb weight 850 kg 1874 lb
Weight distribution
fuel tank capacity 47.7 litres 10.5 UK Gal 12.6 US Gal
Drag coefficient
Frontal area
engine type naturally aspirated petrol
Engine manufacturer Austin
Engine code
Cylinders Straight 4
Capacity 1.5 litre
1485 cc
(90.62 cu in)
Bore × Stroke 76.2 × 81.4 mm
3 × 3.2 in
Bore/stroke ratio 0.94
single overhead camshaft (SOHC)
2 valves per cylinder
8 valves in total
maximum power output
70 PS (69 bhp) (51 kW)
at 5600 rpm
Specific output
46.5 bhp/litre
0.76 bhp/cu in
maximum torque
104 Nm (77 ft·lb) (10.6 kgm)
at 3100 rpm
Specific torque
70.03 Nm/litre
0.85 ft·lb/cu3
Engine construction
compression ratio 9:1
Fuel system 1 SU carb
bmep (brake mean effective pressure) 880.1 kPa (127.6 psi)
Maximum RPM
crankshaft bearings
Engine coolant Water
Unitary capacity 371.25 cc
Aspiration Normal
Compressor N/A
Intercooler None
Catalytic converter N
Acceleration 0-80km/h (50mph)
Acceleration 0-60mph
Acceleration 0-100km/h
Acceleration 0-160km/h (100mph)
Standing quarter-mile
Standing kilometre
Maximum speed
Power-to-weight ratio 82.3 PS/g
60.53 kW/g
81.18 bhp/ton
0.04 bhp/lb
Weight-to-power ratio 16.52 kg/kW
27.59 lb/bhp
fuel consumption
Fuel consumption
universal consumption (calculated from the above)
litres per 100km
km per litre
Carbon dioxide emissions
Carfolio Calculated CO2 ?
VED band (UK)
CO2 Effizienz (DE)
Engine position front
Engine layout transverse
Drive wheels front wheel drive  
Torque split N/A
turns lock-to-lock
Turning circle
Front suspension I.HPS.
Rear suspension I.HPS.
Wheel size front
Wheel size rear
Tyres front
Tyres rear
Brakes F/R Di/Dr-S
Front brake diameter
Rear brake diameter
Gearbox 5 speed manual
Top gear ratio 0.93
Final drive ratio 3.65
general ID41404
Production total
Model code
Model family
RAC rating 14.4
Insurance classification No information available
Tax band No information available
1973 Austin Allegro 1500 added before December 1995.
Last modified 2013-02-28.

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1973 Austin Allegro 1500

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