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Riley 1½-Litre RM

Bodywork

type 4/5S SAL
doors 4

Engine information

Bore × stroke 69.00 mm × 100.00 mm 2.72 in × 3.94 in
Cylinders S-4
Displace 1.5 litre 1496 cc (91.292 cu in)
Engine type OHV
Valves 2 valves per cylinder | 8 valves in total
Engine construction
Sump
Compression ratio 6.80:1
Fuel system 1 SU carb
Maximum power 55.8 PS (55.0 bhp) (41 kW) @ 4500 rpm
0-50 mph 15.90 s
0-60 mph 25.10 s
0-100 mph -1.00 s
0-100 km/h
80 - 120 km/h
402 m (Quarter mile) 22.80 s
Standing km
Top speed 120 km/h (75 mph)
Fuel consumption
CO2 emissions
Power to weight ratio 41.67 bhp/ton
Specific output
Maximum torque 106.0 Nm (78 ft·lb) (10.8 kgm) @ 2500 rpm
bmep 890.4 kPa (129.1 psi)
Specific torque 70.86 Nm/litre
Maximum rpm
Code
Main bearings
Coolant Water
Bore / stroke ratio 0.69
Unitary capacity 374 cc/cylinder
Aspiration Normal
Compressor type N/A
Intercooler None
Catalytic converter N

Dimensions and weight

wheelbase 2858 mm
wheelbase 112.5 in
Length (milimeters) 4547 mm
Length (inches) 179 in
Width (milimeters) 1613 mm
Width (inches) 63.5 in
Height (milimeters) 1500 mm
Height (inches) 59.1 in
L:W ratio 1.59
Ground clearance (milimeters) 191 mm
Ground clearance (inches) 7.5 in
Kerb weight (kilograms) 1320 kg
Kerb weight (pounds) 2910 lb
Weight distribuiton 50.50 %
Fuel capacity (litres) 56.8 litre
Fuel capacity (UK Ga) 12.5 UK Ga
Fuel capacity (US Gal) 15 US Gal

Aerodynamics

Drag coefficient
Frontal area 1.94 m2
Cx

Chassis

Engine location Front
Engine alignment Longitudinal
Drive RWD
Steering
Turns lock-to-lock
Turning circle 9.10 m
Tyres
Wheels
Brakes F/R Dr/Dr
Brake ∅
Braked area
Transmission 4M
Top gear ratio 1.00
Final drive ratio 5.13

General information

RAC rating 11.8
Number made
Model code
Model family
Insurance classification No information available
Tax band No information available

Manual Download

Download 1953 Riley 1½-Litre RM PDF Manual
Designer unknown
Year 1953

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