1927 Sunbeam 20

This automobile has a 2 door convertible/cabriolet type body with a front located engine supplying power to the rear wheels. Its engine is a naturally aspirated petrol, 2.9 litre, overhead valve 6 cylinder with 2 valves per cylinder. It has an output of 55 bhp (56 PS/41 kW) of power at 3600 rpm. A 4 speed manual gearbox delivers the power to the driven wheels. The claimed weight at the kerb is 1372 kg. Maximum quoted speed is 122 km/h (76 mph).
Full specs

Body type
2 door convertible/cabriolet with 2 seats
Length
4451 mm
Weight
1372 kg
Engine type
naturally aspirated petrol
Engine size
2.9 litre
Cylinders
6, Straight
Power
56 PS / 55 bhp / 41 kW @ 3600 rpm
Torque
Unknown
Top speed
122 km/h / 76 mph

1927 Sunbeam 20 specifications

1927 Sunbeam 20 data
bodywork
Français Deutsch Nederlands Italiano Español English
Body type	2 seater convertible/cabriolet
Number of doors	2
Designer
dimensions & weights
Wheelbase	3162 mm	124.5 inches
Track/tread (front)	1397 mm	55 inches
Track/tread (rear)	1397 mm	55 inches
Length	4451 mm	175.2 inches
Width	1803 mm	71 inches
Height
Ground clearance
length:wheelbase ratio	1.41
Kerb weight	1372 kg	3025 lb
Weight distribution
fuel tank capacity
aerodynamics
Drag coefficient
Frontal area
CdA
Powertrain
engine type	naturally aspirated petrol
Engine manufacturer	Sunbeam
Engine code
Cylinders	Straight 6
Capacity	2.9 litre 2916 cc (177.945 cu in)
Bore × Stroke	75 × 110 mm 2.95 × 4.33 in
Bore/stroke ratio	0.68
Valve gear	overhead valve (OHV) 2 valves per cylinder 12 valves in total
maximum power output	56 PS (55 bhp) (41 kW) at 3600 rpm
maximum torque
Specific output	14.1 kW/litre 19.1 ps/litre 18.9 bhp/litre 0.31 bhp/cu in
Engine construction
Lubrication
compression ratio	5.5:1
Fuel system	1 Claudel-Hobson carb
bmep (brake mean effective pressure)
Maximum RPM
crankshaft bearings
Engine coolant	Water
Unitary capacity	486 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
Standing kilometre
Maximum speed	122 km/h (76 mph)
Power-to-weight ratio	Higher is better 40.64 PS/tonne (1000 kg) 0.04 PS/kg 29.89 kW/tonne (1000 kg) 0.03 kW/kg 40.09 bhp/tonne (1000 kg) 0.04 bhp/kg 0.02 bhp/lb
Weight-to-power ratio	Lower is better 33.45 kg/kW 55.88 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	rear wheel drive
Torque split	N/A
Steering
turns lock-to-lock
Turning circle
Front suspension	LA.SE.
Rear suspension	LA.SE.
Wheel size front
Wheel size rear
Tyres front	31 x 5.25
Tyres rear	31 x 5.25
Brakes F/R
Front brake diameter
Rear brake diameter
Braked area
Gearbox	4 speed manual
Top gear ratio	5.5
Final drive ratio
general
Carfolio.com ID	74074
Production total
Model code
RAC rating	20.9
Insurance classification	No information available
Tax band	No information available
1927 Sunbeam 20 added 1997-09-24. Last modified 2013-02-28.