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The 997 Sport Classic is a limited edition version of the 997.2 Carrera S coupé inspired by the 1973 Carrera RS 2.7. The engine is rated at 413 PS (304 kW; 407 hp) and features a newly developed resonance intake manifold with 6 vacuum-controlled switching flaps. It includes a 6-speed manual transmission, double-dome roof (informally called double bubble roof), 44 mm (1.7 in) wider rear fenders, SportDesign front apron with a front spoiler and a fixed 'duck tail' rear wing. Only 256 were made.
Following the famous 1973 F-model 911 Carrera RS 2.7, Porsche built its successor based on the G-model and it was called the 911 Carrera RS 3.0. With its 172 kW engine, it was the most powerful series production street-legal Porsche made so far. With its new 3.0-liter engine, featuring mechanical fuel injection, it was capable of 230 hp. While 1,580 Carrera RS 2.7s were built for 1973, only 56 Carrera RS 3.0s were built for 1974.
Built so that the factory Rothmans Porsche Rally Team could hit the international stage, the SC RS used the Turbo’s body with fibreglass bumpers and aluminium doors. In Autumn 1983, Porsche presents the 911 SC/RS for motor racing. The engine originates from the 911 SC, with improved performance achieved by the mechanical ball fuel injection, increased compression, the cylinder heads from the 935 and forged pistons. Racing seats are fitted in place of the standard seats.
Porsche 908 Turbo
Porsche decided to end its 20-year history of factory sports car racing and sold the 908/03 cars to customers. In 1975, some 908s were fitted with turbocharged engines, similar to those used in the Porsche 934 GT car. Several customer-908s were upgraded with 936-style bodywork. The Porsche 908/80 Turbo of Joest and Jacky Ickx which finished 2nd in the 1980 24 Hours of Le Mans turned out later to have a real Porsche 936 chassis, though.
Porsche-911-Carrera-RSR-3.0
For the 1974 racing season 911 Carrera RSR 3.0 (246 kW) and RSR Turbo 2.1 (338+ kW) were created - the 3.0L for the customer teams and the 2.1 turbo for Porsche’s own team. The Carrera RSR 3.0 was made in small numbers for racing. The 3.0 RSR would go on to become the most successful Group 4 racing car of its time thanks to its combination of low weight, immense Porsche 917 brakes, impeccable handling, and a 330+hp naturally aspirated flat-6.
For 1974 both the 911 Carrera RSR 3.0 and RSR Turbo 2.1 were created - the 3.0L for the customer teams and the 2.1 turbo for Porsche’s own team. The 911 Carrera RSR Turbo 2.1 developed 338-368 kW in power, but as the engine was small, the turbo lag was big and it wasn’t as easy to drive out of the corners as it was with the 3-litre normally aspirated car. Weight reduction measures included plastic hoods, fender flares and doors and an aluminium safety cage.
In the 1970s Porsche was serious about turbocharging and this prototype signaled the way for later cars like the 930 and the RSR 3.0. It was also the one of the very first show cars fitted with the wide body, large alloy wheels, whale tail and a turbocharged version of the flat-6. All these details eventually appeared on the 911 RSR 3.0-liter race car of 1974. The show car was built from a standard 911S fixed with a radical body kit.
Turbo 3.0, by Ryan Snodgrass – © Parabolica Press Amongst its numerous attributes, Porsche sports cars have always been about...