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1976 Porsche 934

Possibly more than any other Porsche factory-built race car in more than a decade, the 934 was as close to a production car as a successful race car could be. The FIA had announced new, highly restrictive rules for its Group 4 production race class for 1976 and required that 400 of any car homologated for the class had to be built per year. Taking the road-going 930 as a starting point, the 934 was so named as it was a '930 built for Group 4 racing.'

1976 Porsche 934 photo
Coupe
Chassis #: 930 6700176
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The FIA rules reduced the number and scope of what could be modified. For once, Porsche's uncanny ability to maximize any advantage via the rulebook was irrelevant. The rules raised the minimum weight of the 934 to 2470 lbs. just short of the production 930's curb weight and the heaviest race car Porsche had ever built. As a result of these rules, Weissach approached the development of the 934 with renewed relish it was actually more of a challenge.

The basis for the 934 was a fully-assembled production 930 body shell. Weissach added screw-on fiberglass fender flares around the standard steel wheel arches. A new front air dam was added which had openings for a central oil cooler along with intakes for air and brake cooling. Suspension modifications were held to a minimum as the 930's had already been optimized with the biggest change being in the uprights, which were strengthened and adapted to take center-lock wheels. BBS supplied the classically styled 3-piece 'spoked' wheels, which the engineers felt would hold up better on such a heavy car.

The interior was virtually unchanged from production, being fully upholstered, trimmed and padded. The two exceptions were the addition of a factory installed roll cage and the replacement of the front seats with a single racing seat.

1976 Porsche 934 photo
Coupe
Chassis #: 930 670 0162
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Auction entries : 2
The mostly stock, single KKK turbocharged engine was putting out 485hp, although, by the end of the 1976 racing season, the top teams were coaxing close to 580hp out of the 930/75 engine, the increase coming mostly through the modification of the waste gate. All this equated to an awesome 0-60 time of 3.9 seconds with a top speed approaching 190mph.

In 1976, 934s dominated most race series they competed in, winning the World Manufacturers Championship and claiming the SCCA's Trans Am Championship in the hands of George Follmer.

Source - Porsche
The Carrera RSR 2.8 enjoyed racing success, winning the Targa Florio outright. A year later, an experimental RSR 2.14 Turbo placed 2nd overall at the 24 Hours of LeMans. Had it not encountered transmission problems which took out fifth gear causing it to add 40 seconds per lap, it may have won. Modifications, work, and development continued, resulting in two new 911-based racing cars to compete in the FIA world championship. Introduced for the 1976 season, the 934 was Porsche's Group 4 GT variant of the all-new turbocharged 930. It was given a large front air dam, three-piece BBS wheels, and riveted GRP fender flares. They had 917 brakes, a full aluminum roll cage, rear coil-spring suspension, and a three-liter flat-six fitted with a turbocharger. 0 to 100 mph accelerated in 12 seconds and had a top speed of nearly 190 mph.

1976 Porsche 934 photo
Coupe
Chassis #: 930 6700176
View info and history
31 examples of the Porsche 934 were built, all in 1976, and sold to privateers. They were raced successfully, earning the European GT Championship and the Trans Am Championship in North America.


by Daniel Vaughan | Apr 2019

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 a 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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1976 Porsche 934 Vehicle Profiles

1976 Porsche 934 vehicle information
Coupe

Chassis #: 9306700158
1976 Porsche 934 vehicle information
Coupe

Chassis #: 930 670 0151
Engine #: 676 2002
1976 Porsche 934 vehicle information
Coupe

Chassis #: 930 6700176

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