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  Porsche 550A RS Spyder
 

  Article Image gallery (65) Chassis (6) Specifications  
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Country of origin:Germany
Produced from:1956 - 1958
Numbers built:46
Internal name:550A
Author:Wouter Melissen
Last updated:March 23, 2015
Download: All images

Engine
Configuration Type 547/2 B4
Location Mid, longitudinally mounted
Construction aluminium block and head
Displacement 1,498 cc / 91.4 cu in
Bore / Stroke 85.0 mm (3.3 in) / 66.0 mm (2.6 in)
Compression 9.8:1
Valvetrain 2 valves / cylinder, DOHC
Fuel feed 2 Weber Carburettors
Ignition Twin Spark
Lubrication Dry sump
Aspiration Naturally Aspirated
Power 133 bhp / 99 KW @ 7,200 rpm
Torque 145 Nm / 107 ft lbs @ 5,900 rpm
BHP/Liter 89 bhp / liter

Drivetrain
Body aluminium
Chassis steel tubular spaceframe
Front suspension twin parallel arms, torsion bars, telescopic shock absorbers, anti-roll bar
Rear suspension swing-axles, trailing arms, torsion bars, telescopic shock absorbers, anti-roll bar
Steering worm-and-nut
Brakes (fr/r) drums
Gearbox 4 speed Manual
Drive Rear wheel drive

Dimensions
Weight 540 kilo / 1,191 lbs
Length / Width / Height 3,700 mm (145.7 in) / 1,610 mm (63.4 in) / 980 mm (38.6 in)
Wheelbase / Track (fr/r) 2,100 mm (82.7 in) / 1,290 mm (50.8 in) / 1,250 mm (49.2 in)
Wheels (fr/r) 5 x 16 / 5.25 x 16
Tyres Continental

Performance figures
Power to weight 0.25 bhp / kg
Top Speed 210 km/h (130 mph)
0-60 mph 7.2 s
0-100 mph 14.4 s

Race history
Major wins
1956 Targa Florio (Umberto Maglioli)

Auctions
Past sales

Resources
Suggested reading
  • Porsche, Excellence was expected, by Karl Ludvigsen
Related articles
Useful links

  Article Image gallery (65) Chassis (6) Specifications