1947 Ferrari 125 S

The Ferrari 125 S is a rear wheel drive road car, with its motor mounted in the front, and a 1 door roadster bodyshell. It's powered courtesy of a naturally aspirated engine of 1.5 litre capacity. This powerplant features single overhead camshaft valve gear, 12 cylinder layout, and 2 valves per cylinder. It has an output of 118 bhp (120 PS/88 kW) of power at 6800 rpm. The engine delivers its power through to the wheels by means of a 5 speed manual transmission. The stated kerb weight is 750 kg. Maximum speed claimed is 155 km/h, which is 96 mph.


Ferrari 125 S -
Ferrari 125 S
Image courtesy of Ferrari
Ferrari 125 S -
Ferrari 125 S
Image courtesy of Ferrari

Key facts

1947 Ferrari 125 S information summary

What body style?
1 door roadster with 2 seats
How heavy?
750 kg
What size engine?
1.5 litre, 1497 cm3
How many cylinders?
12, V
How much power?
120 PS / 118 bhp / 88 kW @ 6800 rpm
How much torque?
How fast?
155 km/h, 96 mph

Similar models

2 door roadster FR 3M 4375 cm3 122 PS 120 bhp 89 kW 864 kg
2 door roadster FR 4M 1971 cm3 122 PS 120 bhp 89 kW 686 kg
1947 Ferrari 125 S data
Body type2 seater roadster
Number of doors1
dimensions & weights
Wheelbase 2420 mm 95.3 inches
Track/tread (front) 1255 mm 49.4 inches
Track/tread (rear) 1200 mm 47.2 inches
Ground clearance
length:wheelbase ratio
Kerb weight 750 kg 1653 lb
Weight distribution
fuel tank capacity 75 litres 16.5 UK Gal 19.8 US Gal
Drag coefficient
Frontal area
engine type naturally aspirated petrol
Engine manufacturer Ferrari
Engine code
Cylinders V 12
Capacity 1.5 litre
1497 cc
(91.353 cu in)
Bore × Stroke 55 × 52.5 mm
2.17 × 2.07 in
Bore/stroke ratio 1.05
Valve gear single overhead camshaft (SOHC)
2 valves per cylinder
24 valves in total
maximum power output 120 PS (118 bhp) (88 kW)
at 6800 rpm
Specific output 78.8 bhp/litre
1.29 bhp/cu in
maximum torque
Specific torque
Engine construction
compression ratio 9.5:1
Fuel system 3 We 30 DCF carbs
bmep (brake mean effective pressure)
Maximum RPM
crankshaft bearings
Engine coolant Water
Unitary capacity 124.75 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 155 km/h (96 mph)
Power-to-weight ratio 159.52 PS/tonne (1000 kg)
117.32 kW/tonne (1000 kg)
157.33 bhp/tonne (1000 kg)
0.07 bhp/lb
Weight-to-power ratio 8.52 kg/kW
14.24 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 front
Engine layout longitudinal
Drive wheels rear wheel drive  
Torque split N/A
turns lock-to-lock
Turning circle
Front suspension I.DW.LowTransLS.
Rear suspension LA.SE.ARB.
Wheel size front
Wheel size rear
Tyres front
Tyres rear
Brakes F/R Dr/Dr
Front brake diameter
Rear brake diameter
Braked area
Gearbox 5 speed manual
Top gear ratio
Final drive ratio
Carfolio.com ID88858
Production total
Model code
Model family
RAC rating 22.5
Insurance classification No information available
Tax band No information available
1947 Ferrari 125 S added 2001-11-12.
Last modified 2013-02-28.