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

type Racing Car
built at Stutgart, Germany
price $ $ 22,500
engine Flat 6
valvetrain SOHC
displacement 2806 cc / 171.2 in³
bore 92.0 mm / 3.62 in
stroke 70.4 mm / 2.77 in
compression 10.3:1
power 208.8 kw / 280.0 bhp @ 8000 rpm
specific output 99.79 bhp per litre
bhp/weight 333.73 bhp per tonne
torque 291.5 nm / 215.0 ft lbs @ 6300 rpm
body / frame Unit Steel with Some Fiberglass Panels
driven wheels Rear Engine / RWD
front tires 230/600-15
rear tires 260/600-15
front brakes Vented & Perforated Discs
front wheels F 38.1 x 22.9 cm / 15.0 x 9.0 in
rear wheels R 38.1 x 27.9 cm / 15.0 x 11.0 in
steering Rack & Pinion
curb weight 839 kg / 1850 lbs
wheelbase 2271 mm / 89.4 in
front track 1402 mm / 55.2 in
rear track 1422 mm / 56.0 in
length 4128 mm / 162.5 in
width 1651 mm / 65.0 in
height 1321 mm / 52.0 in
transmission 5-Speed Manual
gear ratios 3.18:1, 1.83:1, 1.26:1, 0.925:1, 0.724:1
final drive 4.43:1
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