1955 MG MGA

The MG MGA is a 2 door convertible/cabriolet style car with a front positioned engine supplying power to the rear wheels. Power is supplied by an overhead valve, 1.5 litre naturally aspirated 4 cylinder powerplant, with 2 valves per cylinder that produces power and torque figures of 68 bhp (69 PS/51 kW) at 5500 rpm and 105 N·m (77 lb·ft/10.7 kgm) at 3500 rpm respectively. The engine transmits power to the wheels by means of a 4 speed manual set of gears. Claimed weight at the kerb is 890 kg. It is claimed to attain a maxiumum speed of 157 km/h (98 mph).

Pictures

MG MGA -
MG MGA
Image courtesy of MG

Key facts

1955 MG MGA information summary

What body style?
2 door convertible/cabriolet with 2 seats
How long?
3962 mm
How heavy?
890 kg
What size engine?
1.5 litre, 1489 cm3
How many cylinders?
4, Straight
How much power?
69 PS / 68 bhp / 51 kW @ 5500 rpm
How much torque?
105 Nm / 77 ft.lb / 10.7 kgm @ 3500 rpm
How quick?
0-60 mph: 15 s
How fast?
157 km/h, 98 mph

MG MGA models

2 door convertible/​cabriolet FR 4M 1622 cm3 94 PS 93 bhp 69 kW 927 kg
MG MGA 1600 -
2 door convertible/​cabriolet FR 4M 1588 cm3 79 PS 78 bhp 58 kW 927 kg
2 door convertible/​cabriolet FR 4M 1588 cm3 110 PS 108 bhp 81 kW 952 kg

Similar models

2 door convertible/​cabriolet FR 4M 1466 cm3 949 kg
convertible/​cabriolet FR 1248 cm3 69 PS 68 bhp 51 kW 800 kg
Volvo 1500 California -
2 door convertible/​cabriolet FR 1414 cm3 71 PS 70 bhp 52 kW 966 kg
1955 MG MGA data
bodywork
Body type2 seater convertible/cabriolet
Number of doors2
Designer
dimensions & weights
mminches
Wheelbase 2388 mm 94 inches
Track/tread (front) 1207 mm 47.5 inches
Track/tread (rear) 1238 mm 48.7 inches
Length 3962 mm 156 inches
Width 1473 mm 58 inches
Height 1270 mm 50 inches
Ground clearance 152 mm 6 inches
length:wheelbase ratio 1.66
Kerb weight 890 kg 1962 lb
Weight distribution
fuel tank capacity 45.5 litres 10 UK Gal 12 US Gal
aerodynamics
Drag coefficient
Frontal area
CdA
engine
engine type naturally aspirated petrol
Engine manufacturer Morris
Engine code
Cylinders Straight 4
Capacity 1.5 litre
1489 cc
(90.864 cu in)
Bore × Stroke 73.03 × 88.9 mm
2.88 × 3.5 in
Bore/stroke ratio 0.82
Valve gear overhead valve (OHV)
2 valves per cylinder
8 valves in total
maximum power output
(Net)
69 PS (68 bhp) (51 kW)
at 5500 rpm
Specific output
(Net)
45.7 bhp/litre
0.75 bhp/cu in
maximum torque
(Net)
105 Nm (77 ft·lb) (10.7 kgm)
at 3500 rpm
Specific torque
(Net)
70.52 Nm/litre
0.85 ft·lb/cu3
Engine construction
sump
compression ratio 8.3:1
Fuel system 2 SU carbs
bmep (brake mean effective pressure) 886.1 kPa (128.5 psi)
Maximum RPM
crankshaft bearings
Engine coolant Water
Unitary capacity 372.25 cc
Aspiration Normal
Compressor N/A
Intercooler None
Catalytic converter N
performance
Acceleration 0-80km/h (50mph) 10.8 s
Acceleration 0-60mph 15 s
Acceleration 0-100km/h
Acceleration 0-160km/h (100mph) -1.00 s
Standing quarter-mile 20.4 s
Standing kilometre
Maximum speed 157 km/h (98 mph)
Power-to-weight ratio 77.47 PS/tonne (1000 kg)
56.97 kW/tonne (1000 kg)
76.4 bhp/tonne (1000 kg)
0.03 bhp/lb
Weight-to-power ratio 17.55 kg/kW
29.32 lb/bhp
fuel consumption
Fuel consumption
universal consumption (calculated from the above)
litres/100km
km/litre
UK MPG
US MPG
Carbon dioxide emissions
Carfolio Calculated CO2 ?
VED band (UK)
CO2 Effizienz (DE)
chassis
Engine position front
Engine layout longitudinal
Drive wheels rear wheel drive  
Torque split N/A
Steering rack & pinion
turns lock-to-lock
Turning circle
Front suspension I.CS.W.
Rear suspension LA.SE.
Wheel size front
Wheel size rear
Tyres front 5.60-15
Tyres rear 5.60-15
Brakes F/R Dr/Dr
Front brake diameter
Rear brake diameter
Braked area
Gearbox 4 speed manual
Top gear ratio 1
Final drive ratio 4.30
general
Carfolio.com ID64009
Production total
Model code
Model family
RAC rating 13.2
Insurance classification No information available
Tax band No information available
1955 MG MGA added before December 1995.
Last modified 2013-02-28.