’55 Porsche Speedster

55 Porsche Speedster

General specifications
Country of origin	Germany
Chassis number	550-04 / 550-015 / 550-0030
Numbers built	78
Produced from	1954 – 1955
Body design	Erwin Komenda

Engine
Configuration	Type 547 B 4
Location	Mid, longitudinally mounted
Construction	aluminium block and head
Displacement	1.498 liter / 91.4 cu in
Bore / Stroke	85.0 mm (3.3 in) / 66.0 mm (2.6 in)
Compression	9.5:1
Valvetrain	2 valves / cylinder, DOHC
Fuel feed	2 Solex PJJ Carburettors
Aspiration	Naturally Aspirated

Drivetrain
Chassis/body	aluminium body on tubular steel ladder frame
Front suspension	twin parallel arms, transverse torsion bars
Rear suspension	swing axles, torsion bars, double-acting telescopic shock absorbers
Steering	worm and nut
Brakes	drums, all-round
Gearbox	4 speed Manual
Drive	Rear wheel drive

Dimensions
Weight	612 kilo / 1349.2 lbs
Length / Width / Height	3600 mm (141.7 in) / 1540 mm (60.6 in) / 1050 mm (41.3 in)
Wheelbase / Track (fr/r)	2101 mm (82.7 in) / 1290 mm (50.8 in) / 1250 mm (49.2 in)

Performance figures
Power	110 bhp / 82 KW @ 6200 rpm
Torque	120 Nm / 89 ft lbs @ 5000 rpm
BHP/Liter	73 bhp / liter
Power to weight	0.18 bhp / kg
Top Speed	220 km/h / 137 mph