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Armstrong Siddeley Star Sapphire

Bodywork

type 4/5S SAL
doors 4

Engine information

Bore × stroke 97.00 mm × 90.00 mm 3.82 in × 3.54 in
Cylinders S-6
Displace 4 litre 3990 cc (243.485 cu in)
Engine type OHV
Valves 2 valves per cylinder | 12 valves in total
Engine construction
Sump
Compression ratio 7.50:1
Fuel system 2 Ze carbs
Maximum power
0-50 mph 11.30 s
0-60 mph
0-100 mph -1.00 s
0-100 km/h
80 - 120 km/h
402 m (Quarter mile)
Standing km
Top speed 160 km/h (99 mph)
Fuel consumption
CO2 emissions
Power to weight ratio 81.55 bhp/ton
Specific output
Maximum torque
bmep 982.6 kPa (142.5 psi)
Specific torque 78.2 Nm/litre
Maximum rpm
Code
Main bearings
Coolant Water
Bore / stroke ratio 1.08
Unitary capacity 665 cc/cylinder
Aspiration Normal
Compressor type N/A
Intercooler None
Catalytic converter N

Dimensions and weight

wheelbase 2896 mm
wheelbase 114 in
Length (milimeters) 4930 mm
Length (inches) 194.1 in
Width (milimeters) 1880 mm
Width (inches) 74 in
Height (milimeters) 1575 mm
Height (inches) 62 in
L:W ratio 1.7
Ground clearance (milimeters) 216 mm
Ground clearance (inches) 8.5 in
Kerb weight (kilograms) 1778 kg
Kerb weight (pounds) 3920 lb
Weight distribuiton
Fuel capacity (litres) 72.7 litre
Fuel capacity (UK Ga) 16 UK Gal
Fuel capacity (US Gal) 19.2 US Gal

Aerodynamics

Drag coefficient
Frontal area
Cx

Chassis

Engine location Front
Engine alignment Longitudinal
Drive RWD
Steering rack & pinion PAS
Turns lock-to-lock 3.800
Turning circle 11.60 m
Tyres
Wheels
Brakes F/R Di/Di-S
Brake ∅
Braked area
Transmission 3A
Top gear ratio 1.00
Final drive ratio 3.77

General information

RAC rating 35.0
Number made
Model code
Model family
Insurance classification No information available
Tax band No information available

Manual Download

Download 1958 Armstrong Siddeley Star Sapphire PDF Manual
Designer unknown
Year 1958

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