Images: Porsche G- and H-Series 911 Coupe (1973-75)
Production of the G-Series 911 Coupe commenced in August 1973 at Porsche’s Zuffenhausen factory in Stuttgart, Germany. For the 911 G-Series range, the 911, 911 S and 911 Carrera had the same 2.7-litre engine block that was first developed for the 911 Carrera RS 2.7 of 1972… Read full Porsche 911 Coupe review
Images: Porsche I- and J-Series 911 Coupe (1975-77)
Produced from September 1975, the Porsche I-Series introduced a revised range as the 911 S was discontinued. Furthermore, the 911 Carrera received a 3.0-litre engine and the 930 Turbo was introduced the increase in displacement for these 2993 cc engines was achieved by increasing the cylinder bores from 90.0 mm to 95.0 mm, while stroke was unchanged at 70.4 mm. The Sportomatic transmission was also changed to a three-speed unit (925.10) to meet stricter drive-by-noise standards. significantly, sheet steel body panels were galvanised in a zinc bath for corrosion protection from the I-Series 911 onwards. Other changes included the introduction of five-blade engine fans (previously eleven blades) and, inside, the hand-throttle was eliminated.
