Key facts

1934 Alvis Firebird information summary

How long?
4394 mm
How heavy?
1372 kg
What size engine?
1.8 litre, 1842 cm3
How many cylinders?
4, Straight
How much power?
56 PS / 55 bhp / 41 kW @ 4250 rpm
How much torque?
How fast?
114 km/h, 71 mph


Alvis logo -

Alvis logo

Alvis Ltd.

1934 Alvis Firebird technical specifications


The Alvis Firebird's engine is a naturally aspirated petrol, 1.8 litre, overhead valve 4 cylinder with 2 valves per cylinder. This unit has an output of 55 bhp (56 PS/41 kW) of power at 4250 rpm.
The power is delivered to the wheels via a 4 speed manual gearbox.
The quoted weight at the kerb is 1372 kg.
Maximum speed claimed is 114 km/h or 71 mph.
1934 Alvis Firebird data
1934 Alvis Firebird data
Body type
Number of doors
dimensions & weights
Wheelbase 3010 118.5
Track/tread (front)
Track/tread (rear)
Length 4394 173
Width 1626 64
Ground clearance
length:wheelbase ratio 1.46
Kerb weight 1372 kg 3025 lb
Weight distribution
fuel tank capacity
Drag coefficient
Frontal area
engine type naturally aspirated petrol
Engine manufacturer Alvis
Engine code
Cylinders Straight 4
Capacity 1.8 litre
1842 cc
(112.406 cu in)
Bore × Stroke 73 × 110 mm
2.87 × 4.33 in
Bore/stroke ratio 0.66
overhead valve (OHV)
2 valves per cylinder
8 valves in total
maximum power output 56 PS (55 bhp) (41 kW)
at 4250 rpm
Specific output 29.9 bhp/litre
0.49 bhp/cu in
maximum torque
Specific torque
Engine construction
compression ratio 5.8:1
Fuel system 1 SU carb
bmep (brake mean effective pressure)
Maximum RPM
crankshaft bearings
Engine coolant Water
Unitary capacity 460.5 cc
Aspiration Normal
Compressor N/A
Intercooler None
Catalytic converter N
Acceleration 0-80km/h (50mph) 23 s
Acceleration 0-60mph
Acceleration 0-100km/h
Acceleration 0-160km/h (100mph)
Standing quarter-mile
Standing kilometre
Maximum speed 114 km/h (71 mph)
Power-to-weight ratio 40.64 PS/g
29.89 kW/g
40.09 bhp/ton
0.02 bhp/lb
Weight-to-power ratio 33.45 kg/kW
55.88 lb/bhp
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
turns lock-to-lock
Turning circle
Front suspension LA.SE.
Rear suspension LA.SE.
Wheel size front
Wheel size rear
Tyres front
Tyres rear
Brakes F/R
Front brake diameter
Rear brake diameter
Gearbox 4 speed manual
Top gear ratio
Final drive ratio
general ID14113
Production total
Model code
Model family
RAC rating 13.2
Insurance classification No information available
Tax band No information available
1934 Alvis Firebird added before December 1995.
Last modified 2013-02-28.

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1934 Alvis Firebird

World Car Specifications