In the mid-70s, the plans of Dr. Ernst Fuhrman, then director of the Porsche brand, were clearly not to the advantage of the 911, for which he simply envisaged a replacement by the new water-cooled front-engine Porsches, the 928 and the 924. Ferry Porsche, the creator’s son, nevertheless tried to keep the 911 in the catalog but the appearance of the “Super Carrera” in 1978 looked like a real attempt to assassinate him. The irony that this “new 911” was less powerful than the one it replaced (the Carrera 3.0L) is unique in the history of the 911. But by a stroke of fate, the one that was thought to be the last of the 911s finally became a miracle, reviving the career of Porsche’s flagship model for an indefinite period of time.
The 3.0-litre flat 6-cylinder of the Porsche 911 SC (engine type 930/03) comes directly from the Carrera 3L and also served as the basis for the Turbo 3.0 (930). But its true origin goes back to the extremely rare 1974 Carrera RS 3.0. In 1968, the aluminum crankcase had been replaced by a magnesium alloy crankcase. For the Carrera 3.0, the magnesium crankcase was replaced by an aluminum crankcase, which was heavier but stiffer and better able to withstand high local loads.
However, the new engine is still in its infancy, less powerful on the SC than on the Carrera 3L, (180 hp versus 200) and the pill is hard to swallow! The engineers are defending themselves as best they can, justifying the improved torque and less pollution. It was not until August 1979 that power increased by 8 bhp (188 bhp at 5,500 rpm, torque: 27 mkg at 4,200 rpm), but only the premature departure of Dr. Fuhrman in 1980 would really allow Ferry Porsche to implement the revival of the 911. The European versions will go to 204 hp in 1981 and the 911 SC will be produced until 1983 when it will be replaced by the 3.2.