Key facts

Havers Six 44 Roadster, 1912 MY Series C information summary

What body style?
roadster with 2 seats
What size engine?
5.4 litre, 5430 cm3
How many cylinders?
6, Straight
How much power?
44.6 PS / 44 bhp / 32.8 kW
How much torque?


Manufacturer data not found

Havers Motor Car Company

Havers Series C models

1912 Havers Six 44 Roadster technical specifications


The Six 44 Roadster is a passenger car from Havers, with rear wheel drive, a front positioned engine and a 2 door roadster body style.
It forms part of Havers's Series C model series.
Its engine is a naturally aspirated petrol, 5.4 litre, side valve 6 cylinder with 2 valves per cylinder. This unit produces 44 bhp (44.6 PS/32.8 kW) of power.
The engine delivers its power through to the wheels by means of a 3 speed manual gearbox.
1912 Havers Six 44 Roadster data
Havers Six 44 Roadster, 1912 MY Series C data
Body type2 seater roadster
Number of doors2
dimensions & weights
Wheelbase 3099 122
Track/tread (front) 1422 56
Track/tread (rear) 1422 56
Ground clearance
length:wheelbase ratio
Kerb weight
Weight distribution
fuel tank capacity 94.7 litres 20.8 UK Gal 25 US Gal
Drag coefficient
Frontal area
engine type naturally aspirated petrol
Engine manufacturer
Engine code
Cylinders Straight 6
Capacity 5.4 litre
5430 cc
(331.359 cu in)
Bore × Stroke 95.25 × 127 mm
3.75 × 5 in
Bore/stroke ratio 0.75
side valve (SV)
2 valves per cylinder
12 valves in total
maximum power output 44.6 PS (44 bhp) (32.8 kW)
Specific output 8.1 bhp/litre
0.13 bhp/cu in
maximum torque
Specific torque
Engine construction
compression ratio
Fuel system 1 Stromberg carburettor
bmep (brake mean effective pressure)
Maximum RPM
crankshaft bearings 4
Engine coolant Water
Unitary capacity 905 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
Power-to-weight ratio
Weight-to-power ratio
fuel consumption
Fuel consumption
universal consumption (calculated from the above)
litres per 100km
km per litre
Carbon dioxide emissions
Carfolio Calculated CO2 ?
VED band (UK)
CO2 Effizienz (DE)
Engine position front
Engine layout longitudinal
Drive wheels rear wheel drive  
Torque split N/A
Steering worm & wheel
turns lock-to-lock
Turning circle
Front suspension
Rear suspension
Wheel size front
Wheel size rear
Tyres front 36 x 4
Tyres rear 36 x 4
Brakes F/R
Front brake diameter
Rear brake diameter
Gearbox 3 speed manual
Top gear ratio 1
Final drive ratio
general ID297759
Production total
Model code
Model family Series C
RAC rating 33.8
Insurance classification No information available
Tax band No information available
1912 Havers Six 44 Roadster added 2012-12-01.
Last modified 2013-04-06.

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1912 Havers Six 44 Roadster

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