1975 Porsche 934 911 RSR

The Carrera RSR solidified the earlier successes of 911s in European rallies and major road races. The unprecedented success of the Porsche 917 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.

Successful RSR competitors include: Atkin, Busby, Donahue, Dyer, Elford, Follmer, Gregg, Haywood, Holbert, Minter, Kemer, Earle, Robinson, Joest, Loos, Faure, Fitzpatrick, Hagestad.


by Daniel Vaughan | Feb 2008

Related Reading : Porsche 934 History

The Porsche 934 was a specially prepared racing version of the Porsche 911 Turbo built to satisfy the FIA Group 4 rules and to continue the marques success in that class. Homologation requirements stated at least 400 road-going cars were to be built within a two year period. The dimensions of the road and race cars were to be equal and modifications throughout were to be limited, except for safety.....
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Related Reading : Porsche 934/935 History

In 1976, Porsche introduced a racing version of the Porsche 930911 Turbo which they dubbed, the 935. It was designed for FIA-Group 5 competition and was constructed in similar fashion to the Porsche 934, which was used in Group 4 competition. The works team, with sponsorship by Martini, entered the 935 in the FIA World Championship for Makes with team drivers, Jacky Ickx and Jochen Mass in....
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Related Reading : Porsche 934 History

One of the most successful shapes of all time, every young schoolboy can spot a Porsche 911 when one drives by. Porsche purists can wax poetic on the timeless lines of the series. And surely timeless is the right word. Introduced in 1964, even the very first 911 looks remarkably similar to todays iteration. The smooth, elegant contours, though, have occasionally taken on a distinctively sinister....
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1975 Vehicle Profiles

1975 Porsche 934 911 RSR vehicle information

Coupe

The 1977 24 Hours of Daytona was the first race of the 1977 season and what later became known as IMSA's 'Turbo Era.' Regulations finally allowed the new Porsche 935 to compete in the 24 Hours. Not satisfied with the reliability of the new cars, Hurl....[continue reading]

1975 Porsche 934 911 RSR vehicle information

Coupe

This car is the second 934 of the 31 Porsche built. Born December 3, 1975, this car raced successfully for seven season, through 1982. Long-time Porsche expert Bruce Anderson describes it as 'the most successful 934 to race in international competi....[continue reading]

1975 Porsche 934 911 RSR vehicle information

Coupe

Chassis Num: 911 560 9114

This 1975 3.0L Carrera RSR was ordered by Peter Gregg, from Porsche's Racing Development Group at Weissach. It was one of the last RSR Carrera's ever completed by the factory. Between 1976 and 1979 this car, owned and driven by Jim Busby in 1976 and ....[continue reading]

1975 Porsche 934 911 RSR vehicle information

Coupe

Chassis Num: 9115609118
Engine Num: 6850162

This is a 1975 Porsche 911 RSR with serial number 9115609118. This RSR is an original un-restored example of the normally aspirated RSR era. Vasek Polak purchased this car at the end of the RSR production run in late 1974.....[continue reading]

1975 Porsche 934 911 RSR vehicle information

Coupe

Chassis Num: 0050004

This Wally's Jean car was built by Kremer Racing for a Dutch Blue Jeans manufacturer. Kremer was a firm founded in 1962 by brothers Erwin and Manfred Kremer, and was the first team that entered the Porsche 911 in International races. This car was rac....[continue reading]

1975 Porsche 934 911 RSR vehicle information

Coupe

Chassis Num: 9115609122

This factory built race car was sold to Jim Busby by Vasek Polak Racing. Jim Busby raced this car with great success and podium finishing in IMSA. The car was sponsored by Beverly Porsche/Audi owner William Karges and Mitcom Equipment. This car is no....[continue reading]

1975 Porsche 934 911 RSR vehicle information

Coupe

Chassis Num: 911 560 9121

This 3.0-liter Carrera RSR with chassis number 9121 is one of the last 'customer' examples produced by Porsche for the 1975 season. The car was delivered to Wartwig Bertrams and was originally powered by engine number 7840167. The car was raced by th....[continue reading]

1975 Porsche 934 911 RSR vehicle information

Coupe

Chassis Num: 911 560 9122
Engine Num: 6850165
Build Num: 1046997

This Porsche 911 Carrera RSR 3.0-liter is an ex-Jim Busby IMSA race car that was imported by Vasek Polak and sold to Beverly Hills Porsche+Audi. It is Grand Prix White with Busby's 1975 IMSA season livery 'Beverly Hills Porsche+Audi.' This RSR is the....[continue reading]

1975 Porsche 934 911 RSR vehicle information

Coupe

This RSR was raced by Diego Febles. During Diego's race career he was fortunate to be among the friends of Peter Gregg and the Brumos Racing Team. Febles was able to acquire a series of Porsche 911 variants from the Brumos team at the end of each rac....[continue reading]

1975 Porsche 934 911 RSR vehicle information

Coupe

Originally purchased by the late Vasek Pola, Audi/Porsche shop owner in Hermosa Beach, California, this 911, race #63, was Interscope Racing's first team car in which Ted Field (media mogul and owner of Interscope Communications; The Texas Chainsa....[continue reading]

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Chassis #: 911 560 9114 
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Chassis #: 9115609118 
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Chassis #: 0050004 
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Chassis #: 9115609122 
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Chassis #: 911 560 9121 
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Chassis #: 911 560 9122 
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