Key facts

1922 Austin 7 information summary

How long?
4115 mm
How heavy?
432 kg
What size engine?
0.7 litre, 749 cm3
How many cylinders?
4, Straight
How much power?
10.6 PS / 10.5 bhp / 7.8 kW @ 2400 rpm
How much torque?
How quick?
0-60 mph: -1 s
How quick?
0-100 km/h: -1 s
How fast?
84 km/h, 52 mph


Austin logo -

Austin logo

British Leyland (Austin-Morris) Limited

1922 Austin 7 technical specifications


Its engine is a naturally aspirated petrol, 0.7 litre, side valve 4 cylinder with 2 valves per cylinder. In this application it develops 10.5 bhp (10.6 PS/7.8 kW) of power at 2400 rpm.
With a claimed weight at the kerb of 432 kg, the Austin 7 performs the 0-60 mph yardstick in -1 seconds and the standing quarter mile in 32.8 seconds.
Its maximum speed quoted is 84 km/h (52 mph).
1922 Austin 7 data
1922 Austin 7 data
Body type
Number of doors2
dimensions & weights
Wheelbase 1905 75
Track/tread (front) 1016 40
Track/tread (rear) 1016 40
Length 4115 162
Width 1600 63
Ground clearance
length:wheelbase ratio 2.16
Kerb weight 432 kg 952 lb
Weight distribution
fuel tank capacity
Drag coefficient
Frontal area
engine type naturally aspirated petrol
Engine manufacturer Austin
Engine code
Cylinders Straight 4
Capacity 0.7 litre
749 cc
(45.707 cu in)
Bore × Stroke 56 × 76 mm
2.2 × 2.99 in
Bore/stroke ratio 0.74
side valve (SV)
2 valves per cylinder
8 valves in total
maximum power output 10.6 PS (10.5 bhp) (7.8 kW)
at 2400 rpm
Specific output 14 bhp/litre
0.23 bhp/cu in
maximum torque
Specific torque
Engine construction
compression ratio 5.1:1
Fuel system 1 Ze carb
bmep (brake mean effective pressure)
Maximum RPM
crankshaft bearings
Engine coolant Water
Unitary capacity 187.25 cc
Aspiration Normal
Compressor N/A
Intercooler None
Catalytic converter N
Acceleration 0-80km/h (50mph)
Acceleration 0-60mph -1 s
Acceleration 0-100km/h -1 s
Acceleration 0-160km/h (100mph) -1.00 s
Standing quarter-mile 32.8 s
Standing kilometre
Maximum speed 84 km/h (52 mph)
Power-to-weight ratio 24.64 PS/g
18.12 kW/g
24.31 bhp/ton
0.01 bhp/lb
Weight-to-power ratio 55.17 kg/kW
92.16 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 longitudinal
Drive wheels rear wheel drive  
Torque split N/A
turns lock-to-lock
Turning circle
Front suspension LA.TL.
Rear suspension LA.QE.
Wheel size front
Wheel size rear
Tyres front
Tyres rear
Brakes F/R
Front brake diameter
Rear brake diameter
Top gear ratio
Final drive ratio 4.90
general ID14685
Production total
Model code
Model family
RAC rating 7.8
Insurance classification No information available
Tax band No information available
1922 Austin 7 added 1996-11-18.
Last modified 2013-02-28.

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1922 Austin 7

World Car Specifications