1957 Zündapp Janus

The Janus is a motor car from Zündapp, with rear wheel drive, a mid located engine and a 2 door saloon body style. The power is produced by a naturally aspirated engine of 0.2 litre capacity. This unit features two stroke valve gear, 1 cylinder layout,. It develops 14 bhp (14.2 PS/10.4 kW) of power at 5000 rpm, and maximum torque of 21.1 N·m (15.6 lb·ft/2.2 kgm). The engine delivers its power through to the wheels via a 4 speed manual transmission. The quoted kerb weight is 425 kg. The Zündapp Janus is claimed to achieve a maxiumum speed of 80 km/h or 50 mph.


Key facts

1957 Zündapp Janus information summary

What body style?
2 door sedan/saloon with 4 seats
How long?
2890 mm
How heavy?
425 kg
What size engine?
0.2 litre, 247 cm3
How many cylinders?
How much power?
14.2 PS / 14 bhp / 10.4 kW @ 5000 rpm
How much torque?
21.1 Nm / 15.6 ft.lb / 2.2 kgm
How fast?
80 km/h, 50 mph
1957 Zündapp Janus data
Body type4 seater sedan/saloon
Number of doors2
dimensions & weights
Wheelbase 1825 mm 71.9 inches
Track/tread (front) 1150 mm 45.3 inches
Track/tread (rear) 1180 mm 46.5 inches
Length 2890 mm 113.8 inches
Width 1410 mm 55.5 inches
Height 1400 mm 55.1 inches
Ground clearance
length:wheelbase ratio 1.58
Kerb weight 425 kg 937 lb
Weight distribution
fuel tank capacity
Drag coefficient
Frontal area
engine type naturally aspirated petrol
Engine manufacturer
Engine code
Cylinders 1
Capacity 0.2 litre
247 cc
(15.073 cu in)
Bore × Stroke 67 × 70 mm
2.64 × 2.76 in
Bore/stroke ratio 0.96
Valve gear two stroke (TS)
0 valves per cylinder
0 valves in total
maximum power output 14.2 PS (14 bhp) (10.4 kW)
at 5000 rpm
Specific output 56.7 bhp/litre
0.93 bhp/cu in
maximum torque 21.1 Nm (15.6 ft·lb) (2.2 kgm)
Specific torque 85.43 Nm/litre
1.03 ft·lb/cu3
Engine construction
compression ratio 6.8:1
Fuel system 1 Bing carburettor
bmep (brake mean effective pressure) 536.7 kPa (77.8 psi)
Maximum RPM
crankshaft bearings
Engine coolant Air
Unitary capacity 247 cc
Aspiration Normal
Compressor N/A
Intercooler None
Catalytic converter N
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 33.4 PS/tonne (1000 kg)
24.56 kW/tonne (1000 kg)
32.94 bhp/tonne (1000 kg)
0.01 bhp/lb
Weight-to-power ratio 40.71 kg/kW
68 lb/bhp
fuel consumption
Fuel consumption
universal consumption (calculated from the above)
Carbon dioxide emissions
Carfolio Calculated CO2 ?
VED band (UK)
CO2 Effizienz (DE)
Engine position mid
Engine layout longitudinal
Drive wheels rear wheel drive  
Torque split N/A
turns lock-to-lock
Turning circle 9.40 m
Front suspension I.
Rear suspension I.
Wheel size front
Wheel size rear
Tyres front 4.40 x 12
Tyres rear 4.40 x 12
Brakes F/R
Front brake diameter
Rear brake diameter
Braked area
Gearbox 4 speed manual
Top gear ratio 1
Final drive ratio 2.69
Carfolio.com ID89672
Production total
Model code
Model family
RAC rating 2.8
Insurance classification No information available
Tax band No information available
1957 Zündapp Janus added 2006-01-22.
Last modified 2013-02-28.