CarsAlbaMake Chevrolet Camaro BMW 3.0CSL BMW GTP BMW M1 BMW M1 March Chevrolet Camaro Chevrolet Corvette Chevrolet Monza Chevrolet Corvette GTP Dodge Daytona Fabcar Porsche Ferrari 365GTB4 Ferrari 512BB Ford Mustang GTP Lola T600 Lola T616 MarchMake Mazda RX7-4 rotor Mazda RX7 Nissan 300ZX Tc De Tomaso Pantera Pontiac Fiero Porsche 934 Porsche 935 Porsche 962 Porsche Carrera RSR RoyaleMake SpiceMake Spice Fiero TigaMake Toyota Celica Tc
|Chassis||Steel bodyshell with reinforecements, added steel wheelarches. Front mounted 100liter fuel tank.|
|Body||First steel, fiberglass doors, hood and engine cover.|
|Suspension||McPherson strut at front, semi trailing arms at rear.|
|Gearbox||Porsche Synchromesh 5 speed.|
|Engine||Flat six cylinder, air-cooled. 2,8L and 3,0L. Fuel injection via high-butterflies, slides. Twin spark plugs.|
The Carrera RSR solidified the earlier successes of 911s in European rallies and major road races. The unprecedented success of the Porsche 971 during 1969-1972 limited the 911's racing sponsorship primarily in privateer hands. However, with the decline in interest in prototype racing and the 1974 demise of the CanAm series, suddenly production based cars such as the RSR were elevated to headline status and the factory went out of its way to assist customers. In 1973 Porsche quickly switched focus to the 3-liter European GT Championship (FIA Group 4). Porsche created the road legal Carrera RS by modifying the std 911 with a beefed up, lightweight engine, 917 brakes, adjustable shocks, wide body work and wheels, plus the signature whale tail spoiler. The RSR, strictly a race-car, had still a more powerful engine, coil over shocks, and even wider bodywork and wheels. 109 RSRs were built in 1974. Success was immediate. The RSR dominated the world GT scene from 1973 to 1975. Penske/Donahue selected the 1973 RS for the first IROC series in 1973. RSRs placed 5th thru 10th overall and first in GT class at LeMans in 1976. Throughout its lifetime, the 911 has been modified by private teams and by the factory itself for racing, rallying and other forms of automotive competition. It is among the most successful competition cars ever. In the mid 1970s, normally aspirated 911 Carrera RSRs won major world championship sports car races such as Targa Florio, Daytona, Sebring and Nürburgring, even against prototypes. The Porsche Carrera RS has been introduced in the US road racing scene in 1973. From that moment, it has become one of the most successful car ever. The first race of such a car was to happen at Daytona in 1973. This race was the first of the World Sportscar Championship and, there it faced true racing Prototypes as Matra, Mirage and Lola. Not still homologated in GT, the cars were forced to run against stronger machinery. Two brand new Carreras were entered by Brumos Racing and Penske Racing. These were RS cars because fitted with 2,7L engines.The drivers were Peter Gregg and Hurley Haywood on the Brumos car and Mark Donohue and George Follmer on the Penske car. After eight hours of grueling fight between the two sister cars and the retirement of every works car, the Brumos car took the lead of the race! Now the two cars were fighting for overall victory. The Brumos car eventually won the race and had set the Carrera's future in a significative way. From that moment, the Carrera began to dominate the series when introduced in IMSA racing. The first other team to acquire a Porsche Carrera RSR was Dave Helmick's and Gray Egerton's. The first car won at Sebring that year with Peter Gregg, Hurley Haywood and Dave Helmick at the wheel. The Porsche Carrera had won two of the greatest international races in its race debut. Fitted with a 2,8L F6 engine given for 300hp, the car was one of the most effective ones when in the hands of potent drivers. Its low fuel consumption coupled with a great reliability made this car a winner. The 1973 Porsche Carrera was the IMSA Champion with Peter Gregg that year. In 1974, a new version was born, this time the engine grew up to 3,0L. With a new tail section and an increase of power, such a car was nearly unbeatable. Furthermore, their number increased in a significant way. The IROC Series was no stranger to this fact. At the end of the 1973 season, a string of a dozen cars was left unused. These cars needed very few changes to adapt to the IMSA rules, and they found new owners very quickly. The 1974 season began with the cancellation of two of the longest events in the schedule. The Arab-Israeli war had put an embargo on the fuel and restrictions were made to long distance races. The season began thus at Road Atlanta with a 6Hour event. This first race was won by Al Holbert and Elliot Forbes Robinson. In fact, the Porsche Carreras won all but one event this year, clearly dominating the series. Peter Gregg emerged again as the series champion, as he proved his talent once again. This domination proved to become some kind of a threat to the series, as John Bishop sensed the fact that it would bore the crowds. The solution would be to bring new competitors to the German Make. It would take some time before the opposition would clearly materialize.