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Riley 4/72

Bodywork

type 4/5S SAL
doors 0

Engine information

Bore × stroke 76.20 mm × 88.90 mm 3 in × 3.5 in
Cylinders S-4
Displace 1.6 litre 1622 cc (98.981 cu in)
Engine type OHV
Valves 2 valves per cylinder | 8 valves in total
Engine construction
Sump
Compression ratio 8.30:1
Fuel system 2 SU carbs
Maximum power
0-50 mph 13.50 s
0-60 mph
0-100 mph
0-100 km/h
80 - 120 km/h
402 m (Quarter mile) 22.10 s
Standing km
Top speed 131 km/h (81 mph)
Fuel consumption
CO2 emissions
Power to weight ratio 59.23 bhp/ton
Specific output
Maximum torque
bmep 929.7 kPa (134.8 psi)
Specific torque 73.98 Nm/litre
Maximum rpm
Code
Main bearings
Coolant Water
Bore / stroke ratio 0.86
Unitary capacity 405.5 cc/cylinder
Aspiration Normal
Compressor type N/A
Intercooler None
Catalytic converter N

Dimensions and weight

wheelbase 2546 mm
wheelbase 100.2 in
Length (milimeters) 4534 mm
Length (inches) 178.5 in
Width (milimeters) 1613 mm
Width (inches) 63.5 in
Height (milimeters) 1499 mm
Height (inches) 59 in
L:W ratio 1.78
Ground clearance (milimeters) 165 mm
Ground clearance (inches) 6.5 in
Kerb weight (kilograms) 1148 kg
Kerb weight (pounds) 2531 lb
Weight distribuiton
Fuel capacity (litres) 45.5 litre
Fuel capacity (UK Ga) 10 UK Gal
Fuel capacity (US Gal) 12 US Gal

Aerodynamics

Drag coefficient
Frontal area
Cx

Chassis

Engine location Front
Engine alignment Transverse
Drive RWD
Steering
Turns lock-to-lock
Turning circle
Tyres
Wheels
Brakes F/R
Brake ∅
Braked area
Transmission 4M
Top gear ratio 1.00
Final drive ratio 4.30

General information

RAC rating 14.4
Number made
Model code
Model family
Insurance classification No information available
Tax band No information available

Manual Download

Download 1961 Riley 4/72 PDF Manual
Designer unknown
Year 1961

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