1913 Imp Cyclecar

The Imp Cyclecar is a cyclecar designed by William B. Stout with a front mounted engine which transmits its power through the rear wheels. It is powered by a naturally aspirated engine of 1.1 litre capacity. This powerplant features a 45 degree V 2 cylinder layout, and 2 valves per cylinder. It develops 15 bhp (15.2 PS/11.2 kW) of power at 2500 rpm. Power is transmitted to the wheels through a 1 speed transmission. It weighs a stated 272 kg at the kerb. Maximum claimed speed is 80 km/h, or 50 mph.
Full specs

Body type
cyclecar with 2 seats
Weight
272 kg
Engine type
naturally aspirated petrol
Engine size
1.1 litre
Cylinders
2, V
Power
15.2 PS / 15 bhp / 11.2 kW @ 2500 rpm
Torque
Unknown
Top speed
80 km/h / 50 mph

1913 Imp Cyclecar specifications

1913 Imp Cyclecar data
bodywork
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Body type	2 seater cyclecar
Number of doors
Designer	William B. Stout
dimensions & weights
Wheelbase	2540 mm	100 inches
Track/tread (front)	914 mm	36 inches
Track/tread (rear)	914 mm	36 inches
Length
Width
Height
Ground clearance	203 mm	8 inches
length:wheelbase ratio
Kerb weight	272 kg	600 lb
Weight distribution
fuel tank capacity
aerodynamics
Drag coefficient
Frontal area
CdA
Powertrain
engine type	naturally aspirated petrol
Engine manufacturer	Rochester
Engine code
Cylinders	V 2 in 45° vee
Capacity	1.1 litre 1136 cc (69.323 cu in)
Bore × Stroke	85.73 × 98.43 mm 3.38 × 3.88 in
Bore/stroke ratio	0.87
Valve gear	2 valves per cylinder 4 valves in total
maximum power output	15.2 PS (15 bhp) (11.2 kW) at 2500 rpm
maximum torque
Specific output	9.8 kW/litre 13.4 ps/litre 13.2 bhp/litre 0.22 bhp/cu in
Engine construction
Lubrication
compression ratio
Fuel system	1 Heitger carburettor
bmep (brake mean effective pressure)
Maximum RPM
crankshaft bearings
Engine coolant	Air
Unitary capacity	568 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	80 km/h (50 mph)
Power-to-weight ratio	Higher is better 55.91 PS/tonne (1000 kg) 0.06 PS/kg 41.12 kW/tonne (1000 kg) 0.04 kW/kg 55.15 bhp/tonne (1000 kg) 0.06 bhp/kg 0.02 bhp/lb
Weight-to-power ratio	Lower is better 24.32 kg/kW 40.62 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	transverse
Drive wheels	rear wheel drive
Torque split	N/A
Steering
turns lock-to-lock
Turning circle
Front suspension	I.SE.
Rear suspension	I.SE.
Wheel size front
Wheel size rear
Tyres front	28 x 2½
Tyres rear	28 x 2½
Brakes F/R
Front brake diameter
Rear brake diameter
Braked area
Gearbox	1 speed transmission
Top gear ratio
Final drive ratio
general
Carfolio.com ID	260194
Production total
Model code
RAC rating	9.1
Insurance classification	No information available
Tax band	No information available
1913 Imp Cyclecar added 2012-01-22. Last modified 2020-02-02.