The Turbo version of the 1976-1977 911 was for the rich performance enthusiast after a challenging drive. It was a brave move by Porsche to install the turbo, as only BMW and Chevrolet had tried it on a production model before, though the Stuttgart, Germany-based company did know the turbocharging had strong appeal in its own race programme. It was a single KKK turbo with 12psi boost, but it made the engine so much more punchy that a stronger transmission was required. To get the power down, wider rear arches were also needed in order to get sufficient rubber under them. After 1977 the car's displacement was upped to 201ci (3,293cc) for 300bhp (224kW), but the Turbo had developed a reputation for being a monster, well deserved given the performance and sudden oversteer. The 'whaletail' spoiler, where the intercooler was mounted, also provided downforce at speed.
Porsche 911 Turbo (1976-1977) Specifications
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