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A view under the hood.
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- engine and transmission showing inboard disc brakes - click on image to see large version (will open in new window)</TD></TR><TR><TD>
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Technical specification 1971
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Number of cylinders
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V 6
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Cubic capacity
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2 670 cm<SUP>3</SUP>
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Bore and stroke
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87 x 75 mm
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Fiscal power rating
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15 CV
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Fuel system
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Three Weber carburettors
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Maximum power output in brake horse power
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180 SAE @ 6 250 rpm
170 DIN @ 5 500 rpm
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Valve gear
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4 overhead camshafts, 2 overhead valves per cylinder
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Transmission
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Front wheel drive via 5 speed manual gearbox
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Brakes
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Fully powered discs, front brakes mounted inboard, parking brake operates on front brakes
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Suspension
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Self levelling, fully independent, variable ride height, hydropneumatic with anti dive, anti squat geometry
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Steering
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Rack and pinion, DIRAVI/Varipower
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Dimensions
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Length
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4,890 m
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Width
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1,840 m
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Height
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1,320 m
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Wheelbase
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2,950 m
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Front track
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1,530 m
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Rear track
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1,330 m
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Weight
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1 450 kg
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Maximum speed
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220 kph
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http://www.citroenet.org.uk/passenge...ages/shell.jpg</TD></TR><TR><TD width=400>
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The SM , despite being longer than the DS, was a 2 + 2 Grand Tourer.
The body was styled by Robert Opron who was also responsible for the GS and <!--~++++++++++++ LINK1 ++++++++++++~-->CX .
The glass front housed no less than six headlamps, all of which were connected to the suspension to maintain a constant beam height whether accelerating or braking while the inner pair were connected to the steering. American customers had to put up with four round lamps with no glass nacelle.
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In 1973, power output was increased to 188 bhp SAE @ 6 250 rpm/178 bhp DIN @ 5 500 rpm thanks to the fitting of electronic fuel injection. Top speed increased to 228 kph.
In 1974, the SM Automatique was launched, fitted with a 2 965 cm<SUP>3</SUP> engine developing 190 bhp SAE @ 6 500 rpm/180 bhp DIN @ 5 500 rpm, fed by three Weber carburettors and a three speed Borg Warner automatic gearbox offering a top speed of 205 kph.
Escalating fuel prices in 1975 coupled with the unimaginative dead hand of Peugeot killed the SM off.
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http://www.citroenet.org.uk/passenge...es/moteur2.jpg</TD></TR><TR><TD width=400>Click on the two engine cutaways to see large version (will open in new window)
Below the fuel injected engine
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http://www.citroenet.org.uk/passenge...moteur-inj.jpg</TD></TR><TR><TD width=400>
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Above and below in its first outing, the gruelling Rallye du Maroc, the SM came first in Group 4
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Above, below and below left - Henri Chapron built two four door drophead SMs for the Elysée </TD></TR><TR><TD width=400>
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