1981 ARO 100

The 100 is a four wheel drive off-road vehicle motor car with a front placed engine, from ARO. Its 4 cylinder, overhead valve naturally aspirated engine has 2 valves per cylinder and a displacement of 1.3 litres. It produces power and torque figures of 53 bhp (54 PS/40 kW) at 5250 rpm and 88 Nm (65 lbft/9 kgm) at 3000 rpm respectively. The engine delivers its power through to the wheels via a 2X4 speed manual transmission. The stated kerb weight is 1050 kg. Top claimed speed is 115 km/h (71 mph).
Full specs

Body type
2 door off-road vehicle with 2 seats
Length
3590 mm
Weight
1050 kg
Engine type
naturally aspirated petrol
Engine size
1.3 litre
Cylinders
4, Straight
Power
54 PS / 53 bhp / 40 kW @ 5250 rpm
Torque
88 Nm / 65 ft.lb / 9 kgm @ 3000 rpm
Top speed
115 km/h / 71 mph

1981 ARO 100 specifications

1981 ARO 100 data
bodywork
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Body type	2 seater off-road vehicle
Number of doors	2
Designer
dimensions & weights
Wheelbase	2400 mm	94.5 inches
Track/tread (front)	1290 mm	50.8 inches
Track/tread (rear)	1290 mm	50.8 inches
Length	3590 mm	141.3 inches
Width	1600 mm	63 inches
Height	1740 mm	68.5 inches
Ground clearance	220 mm	8.7 inches
length:wheelbase ratio	1.5
Kerb weight	1050 kg	2315 lb
Weight distribution	45% front
fuel tank capacity	53 litres	11.7 [14] UK [US] gal.
aerodynamics
Drag coefficient
Frontal area
CdA
Powertrain
engine type	naturally aspirated petrol
Engine manufacturer
Engine code
Cylinders	Straight 4
Capacity	1.3 litre 1289 cc (78.66 cu in)
Bore × Stroke	73 × 77 mm 2.87 × 3.03 in
Bore/stroke ratio	0.95
Valve gear	overhead valve (OHV) 2 valves per cylinder 8 valves in total
maximum power output (DIN)	54 PS (53 bhp) (40 kW) at 5250 rpm
maximum torque (DIN)	88 Nm (65 ft·lb) (9 kgm) at 3000 rpm
Specific output (DIN)	30.7 kW/litre 41.7 ps/litre 41.1 bhp/litre 0.67 bhp/cu in
Specific torque (DIN)	68.27 Nm/litre 0.83 ft·lb/cu³
Engine construction
Lubrication	wet sumped
compression ratio	8.5:1
Fuel system	1 Solex 32 IRM carburettor
bmep (brake mean effective pressure)	857.9 kPa (124.4 psi)
Maximum RPM
crankshaft bearings	5
Engine coolant	Water
Unitary capacity	322.25 cc
Aspiration	Normal
Compressor	N/A
Intercooler	None
Catalytic converter	N
performance
Acceleration 0-80km/h (50mph)
Acceleration 0-60mph
Acceleration 0-100km/h
Acceleration 0-160km/h (100mph)
Standing quarter-mile	30 s
Standing kilometre
Maximum speed	115 km/h (71 mph)
Power-to-weight ratio	Higher is better 51.18 PS/tonne (1000 kg) 0.05 PS/kg 37.64 kW/tonne (1000 kg) 0.04 kW/kg 50.48 bhp/tonne (1000 kg) 0.05 bhp/kg 0.02 bhp/lb
Weight-to-power ratio	Lower is better 26.57 kg/kW 44.38 lb/bhp
fuel consumption
Fuel consumption
universal fuel consumption (calculated from the above)
litres/100km
km/litre
UK MPG
US MPG
Carbon dioxide emissions
Carbon dioxide emissions
Carfolio Calculated CO₂ ^?
VED band (UK)
CO₂ Effizienz (DE)
chassis
Engine position	front
Engine layout	longitudinal
Drive wheels	four wheel drive
Torque split
Steering
turns lock-to-lock	3.500
Turning circle
Front suspension
Rear suspension
Wheel size front	5 x 14
Wheel size rear	5 x 14
Tyres front	175 x 14
Tyres rear	175 x 14
Brakes F/R	Di/Di
Front brake diameter
Rear brake diameter
Braked area
Gearbox	2X4 speed manual
Top gear ratio	1
Final drive ratio	5.14
general
Carfolio.com ID	196339
Production total
Model code
RAC rating	13.2
Insurance classification	No information available
Tax band	No information available
1981 ARO 100 added 2009-03-18. Last modified 2013-02-28.