1973 Citroën GS Birotor

This automobile has a 5 door saloon (sedan) body style designed by Robert Opron with a front located engine that delivers power to the front wheels. The 2 (rotary equivalent) litre engine is a naturally aspirated, Wankel rotary 2 rotary chamber unit that develops 106 bhp (107 PS/79 kW) of power at 6500 rpm, and maximum torque of 137 N·m (101 lb·ft/14 kgm) at 3000 rpm. The engine delivers its power through to the wheels via a 3 speed semi-automatic transmission. It weighs a claimed 1140 kg at the kerb. Maximum stated speed is 175 km/h (109 mph).

Pictures

Citroën GS Birotor -
Citroën GS Birotor
Image courtesy of Citroën
Citroën GS Birotor -
Citroën GS Birotor
Image courtesy of Citroën

Key facts

1973 Citroën GS Birotor information summary

What body style?
5 door sedan/saloon with 4/5 seats
How long?
4121 mm
How heavy?
1140 kg
What size engine?
2 litre, 1990 cm3
How many cylinders?
2, RC
How much power?
107 PS / 106 bhp / 79 kW @ 6500 rpm
How much torque?
137 Nm / 101 ft.lb / 14 kgm @ 3000 rpm
How quick?
0-100 km/h: 14 s
How fast?
175 km/h, 109 mph

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1973 Citroën GS Birotor data
bodywork
Body type4/5 seater sedan/saloon
Number of doors5
DesignerRobert Opron
dimensions & weights
mminches
Wheelbase 2562 mm 100.9 inches
Track/tread (front) 1427 mm 56.2 inches
Track/tread (rear) 1341 mm 52.8 inches
Length 4121 mm 162.2 inches
Width 1645 mm 64.8 inches
Height 1372 mm 54 inches
Ground clearance
length:wheelbase ratio 1.61
Kerb weight 1140 kg 2513 lb
Weight distribution
fuel tank capacity 56.8 litres 12.5 UK Gal 15 US Gal
aerodynamics
Drag coefficient
Frontal area
CdA
engine
engine type naturally aspirated petrol
Engine manufacturer Citroën
Engine code
Cylinders RC 2
Capacity 2 litre
1990 cc
(121.437 cu in)
Bore × Stroke
Bore/stroke ratio
Valve gear
maximum power output
(DIN)
107 PS (106 bhp) (79 kW)
at 6500 rpm
Specific output
(DIN)
53.3 bhp/litre
0.87 bhp/cu in
maximum torque
(DIN)
137 Nm (101 ft·lb) (14 kgm)
at 3000 rpm
Specific torque
(DIN)
68.84 Nm/litre
0.83 ft·lb/cu3
Engine construction
sump
compression ratio 9:1
Fuel system
bmep (brake mean effective pressure)
Maximum RPM
crankshaft bearings
Engine coolant Water
Unitary capacity 995 cc
Aspiration Normal
Compressor N/A
Intercooler None
Catalytic converter N
performance
Acceleration 0-80km/h (50mph)
Acceleration 0-60mph
Acceleration 0-100km/h 14 s
Acceleration 0-160km/h (100mph)
Standing quarter-mile
Standing kilometre 34.1 s
Maximum speed 175 km/h (109 mph)
Power-to-weight ratio 94.27 PS/tonne (1000 kg)
69.34 kW/tonne (1000 kg)
92.98 bhp/tonne (1000 kg)
0.04 bhp/lb
Weight-to-power ratio 14.42 kg/kW
24.09 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 transverse
Drive wheels front wheel drive  
Torque split N/A
Steering rack & pinion
turns lock-to-lock
Turning circle
Front suspension I.HS.
Rear suspension I.HS.
Wheel size front
Wheel size rear
Tyres front 165 HR 14
Tyres rear 165 HR 14
Brakes F/R
Front brake diameter
Rear brake diameter
Braked area
Gearbox 3 speed
Top gear ratio 1
Final drive ratio
general
Carfolio.com ID47663
Production total
Model code
Model family
RAC rating
Insurance classification No information available
Tax band No information available
1973 Citroën GS Birotor added 1998-01-06.
Last modified 2013-06-19.