1973 Porsche 911 Carrera RSR 2.8


1973 Porsche 911 Carrera RSR 2.8

For the privateer in the mid-1970s who wanted to go sports car racing, and in particular compete successfully at the famed 24 Hours of Le Mans, there was really only one viable option, the Porsche RSR. Introduced in 1973, the RSR was a factory-built racing car based on the 911 chassis.

These were not converted street cars, but rather purpose built competition models designed and built from the ground up for serious racing use. In 1974 the factory made significant changes to the car including a new 3.0 liter engine, wider wheels with center lock hubs and improved aerodynamics.

The result was a car that would dominate the GT category and challenge for overall wins around the world.

Story by 2010 Bonhams 1793 Ltd.

1973 Porsche 911 Carrera RSR 2.8 1973 Porsche 911 Carrera RSR 2.8 1973 Porsche 911 Carrera RSR 2.8

In Detail

typeRacing Car
built atStutgart, Germany
price $$ 22,500
engineFlat 6
valvetrainSOHC
displacement2806 cc / 171.2 in³
bore92.0 mm / 3.62 in
stroke70.4 mm / 2.77 in
compression10.3:1
power208.8 kw / 280.0 bhp @ 8000 rpm
specific output99.79 bhp per litre
bhp/weight333.73 bhp per tonne
torque291.5 nm / 215.0 ft lbs @ 6300 rpm
body / frameUnit Steel with Some Fiberglass Panels
driven wheelsRear Engine / RWD
front tires230/600-15
rear tires260/600-15
front brakesVented & Perforated Discs
front wheelsF 38.1 x 22.9 cm / 15.0 x 9.0 in
rear wheelsR 38.1 x 27.9 cm / 15.0 x 11.0 in
steeringRack & Pinion
curb weight839 kg / 1850 lbs
wheelbase2271 mm / 89.4 in
front track1402 mm / 55.2 in
rear track1422 mm / 56.0 in
length4128 mm / 162.5 in
width1651 mm / 65.0 in
height1321 mm / 52.0 in
transmission5-Speed Manual
gear ratios3.18:1, 1.83:1, 1.26:1, 0.925:1, 0.724:1
final drive4.43:1
top speed~286.5 kph / 178.0 mph
0 – 60 mph~5.6 seconds
0 – 100 mph~12.0 seconds
0 – 1/4 mile~13.2 seconds

Auction Sales History

1973 Porsche 911 Carrera RSR 2.8

1973 Porsche 911 Carrera 2.8 RSR 911 360 1521 – sold for $935,000 Among the Most Rare and Desirable Racing 911s. One of Only 55 Examples Built for the 1973 Model Year. Delivered New to Germany and Campaigned in Numerous Club Events. Restored by Brunn Racing and Presented in Original Viper Green Livery. Ideal Candidate for the Finest Historic Races and Rallies. Auction Source: The Pebble Beach Auctions 2015 by Gooding and Company

1973 Porsche 911 Carrera RSR 2.8

1973 Porsche 911 RSR 2.8 9113600865 – The car offered here is the second RSR imported into the United States. It was originally supplied to Peter Gregg’s Brumos Porsche of Jacksonville, Florida and sold on 17th May 1973 to Hector Rebaque, the fast-rising racing driver from Mexico City. Rebaque drove for a number of high-profile teams in sports car competition during the early 1970s, progressing to Formula 1 between 1977 and 1981.

Quite significantly, conversations with well known Porsche authority John Starkey have unearthed evidence that, as the third RSR owned by Hector Rebaque, race reports from the time point strongly to this being the car raced by Peter Gregg himself to a podium place in the Mexico 6 hour race in 1974. Auction Source: 2010 RM Auctions Sporting Classics of Monaco