Key facts

1933 Frazer Nash Colmore 12/50 information summary

What body style?
roadster with 2 seats
How long?
3658 mm
How heavy?
787 kg
What size engine?
1.5 litre, 1496 cm3
How many cylinders?
4, Straight
How much power?
56 PS / 55 bhp / 41 kW @ 4000 rpm
How much torque?

Frazer Nash

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Frazer Nash logo

1933 Frazer Nash Colmore 12/50 technical specifications


This vehicle has a 2 door roadster type body with a front mounted engine powering the rear wheels.
The 1.5 litre engine is a naturally aspirated, overhead valve, 4 cylinder unit that has an output of 55 bhp (56 PS/41 kW) of power at 4000 rpm.
Its stated kerb weight is 787 kg.
1933 Frazer Nash Colmore 12/50 data
1933 Frazer Nash Colmore 12/50 data
Body type2 seater roadster
Number of doors2
dimensions & weights
Wheelbase 2667 105
Track/tread (front) 1219 48
Track/tread (rear) 1219 48
Length 3658 144
Width 1372 54
Ground clearance
length:wheelbase ratio 1.37
Kerb weight 787 kg 1735 lb
Weight distribution
fuel tank capacity
Drag coefficient
Frontal area
engine type naturally aspirated petrol
Engine manufacturer
Engine code
Cylinders Straight 4
Capacity 1.5 litre
1496 cc
(91.292 cu in)
Bore × Stroke 69 × 100 mm
2.72 × 3.94 in
Bore/stroke ratio 0.69
overhead valve (OHV)
2 valves per cylinder
8 valves in total
maximum power output 56 PS (55 bhp) (41 kW)
at 4000 rpm
Specific output 36.8 bhp/litre
0.6 bhp/cu in
maximum torque
Specific torque
Engine construction
compression ratio 6.8:1
Fuel system 2 Am carbs
bmep (brake mean effective pressure)
Maximum RPM
crankshaft bearings
Engine coolant Water
Unitary capacity 374 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 70.86 PS/g
52.11 kW/g
69.89 bhp/ton
0.03 bhp/lb
Weight-to-power ratio 19.19 kg/kW
32.05 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
Rear suspension
Wheel size front
Wheel size rear
Tyres front
Tyres rear
Brakes F/R
Front brake diameter
Rear brake diameter
Top gear ratio 1
Final drive ratio 3.80
general ID59510
Production total
Model code
Model family
RAC rating 11.8
Insurance classification No information available
Tax band No information available
1933 Frazer Nash Colmore 12/50 added before December 1995.
Last modified 2013-02-28.

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1933 Frazer Nash Colmore 12/50

World Car Specifications