Background
In view of the updating of the 356 range, on which Porsche began work in the second half of the 1950s, the Zuffenhausen company thought of an intermediate version, with performance close to the first Carrera and greater usability in everyday use. Thus, in 1959, the 356 B 1600 Super 90 was born, whose pushrod engine, derived from that of the 1600 S version, was modified with larger intake ducts and an increase in the diameter of the inlet valves to 40 millimetres. The redesign of several mechanical components increases the compression ratio of the air-cooled four-cylinder boxer from 8.5:1 to 9:1, while single fuel supply is provided by the same two Solex A40 P JJ4 twin-body carburettors that Porsche's designers had already fitted to the 356A 1500 GS. Maximum power increases to 90 hp at 5500 rpm, with maximum torque of 121 Nm at 4300 rpm. In the light of the increased performance, the chassis is stiffened with Koni sports dampers and a transverse leaf spring at the rear; the tyres are also beefed up for better road handling.







