The ex-Robert Droogmans, François Delecour,1973/74 Porsche 911 Carrera RSR 3.0-Litre Group 4 Competition Coupé (HTP Papers)  Chassis no. 9113500227

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Lot 247
The ex-Robert Droogmans, François Delecour,1973/74 Porsche 911 Carrera RSR 3.0-Litre Group 4 Competition Coupé (HTP Papers)
Chassis no. 9113500227

£ 75,000 - 85,000
US$ 92,000 - 100,000
The ex-Robert Droogmans, François Delecour
1973/74 Porsche 911 Carrera RSR 3.0-Litre Group 4 Competition Coupé (HTP Papers)
Chassis no. 9113500227

Footnotes

  • The Porsche 911 Carrera RSR has a special place in the German factory’s history because it was the first time that it had built a ‘homologation special’ version of a production car. In the early 1970s, long-distance sports car racing had reached new heights of excitement, thanks in no small measure to the duels between the mighty Porsche 917 and the Ferrari 512. Then the rules changed, a 3.0-litre engine capacity limit was imposed and the category began to fall apart; it should have worked since it ran to the same capacity limit as Formula 1 but, for a variety of reasons, it did not. The sport’s governing body then began to talk about a replacement formula; the championship would be run with production-based cars, essentially a ‘silhouette’ formula. Porsche was interested in such a proposal, as it had built the 911 Carrera 2.7 RS in sufficient numbers for it to be homologated as a Group 3 Production GT car. The rules said that once a model had been homologated, then an evolution of the same model could be made, provided it remained in the same class.

    This particular car is a 1973 model incorporating extensive modifications to engine, chassis and body to bring it up to 1974 RSR specification using many original RSR parts. It is believed a German Porsche specialist was responsible for carrying out this work approximately ten years ago. More recently the car was converted to Group 4 (RSR) FIA Homologation ‘3053’ specification at huge cost to compete in National Championships in the Czechoslovakian Republic.

    The RSR specification engine was rebuilt and enlarged during the Group 4 modification using the stronger 911 Turbo cases with new crankshaft, pistons and cylinder barrels for a capacity of 3,000cc. In addition, the engine received Carrera 906 camshafts, twin-plug ignition, new valves, up-rated oil pump, modified Bosch injection pump and RSR large bore racing headers on modified MFI. Tested on Bob Watson’s rolling road dynamometer in May 2009, the engine produced an impressive 275bhp (see documentation on file) and has done only 10 miles (16 kilometres) since being rebuilt.

    The transmission comprises a Type 915 gearbox with shorter ratios, limited-slip differential, oil cooler and a quick-change modification to 5th gear. The car has not been used since the transmission was rebuilt by Bob Watson in May of this year. Bearing some competition scars, the 1973 bodyshell has been meticulously prepared and strengthened for tarmac use and modified to 1974 RSR specification for FIA homologation. The rear suspension is original and date-stamped but benefits from up-rated shock absorbers, while the front suspension is upgraded to RSR coil-over units, with adjustable anti-roll bars and ventilated brake discs all round.

    Painted white and driven by Roman Odložilík, this car won the Czech National Championship in 2003 and 2004, and has recently been piloted by such notable drivers as 1990 European Champion, Robert Droogmans (in Gulf Blue livery) and WRC star, Francois Delecour (in Martini colours). Many documented results, photographs and videos accompany the car. Although not road registered, it comes with current HTP papers, making it eligible for a variety of prestigious events including the Masters, Tour Auto, Classic Le Mans and Porsche Club races.
The ex-Robert Droogmans, François Delecour,1973/74 Porsche 911 Carrera RSR 3.0-Litre Group 4 Competition Coupé (HTP Papers)  Chassis no. 9113500227
The ex-Robert Droogmans, François Delecour,1973/74 Porsche 911 Carrera RSR 3.0-Litre Group 4 Competition Coupé (HTP Papers)  Chassis no. 9113500227
The ex-Robert Droogmans, François Delecour,1973/74 Porsche 911 Carrera RSR 3.0-Litre Group 4 Competition Coupé (HTP Papers)  Chassis no. 9113500227
The ex-Robert Droogmans, François Delecour,1973/74 Porsche 911 Carrera RSR 3.0-Litre Group 4 Competition Coupé (HTP Papers)  Chassis no. 9113500227
The ex-Robert Droogmans, François Delecour,1973/74 Porsche 911 Carrera RSR 3.0-Litre Group 4 Competition Coupé (HTP Papers)  Chassis no. 9113500227
The ex-Robert Droogmans, François Delecour,1973/74 Porsche 911 Carrera RSR 3.0-Litre Group 4 Competition Coupé (HTP Papers)  Chassis no. 9113500227
The ex-Robert Droogmans, François Delecour,1973/74 Porsche 911 Carrera RSR 3.0-Litre Group 4 Competition Coupé (HTP Papers)  Chassis no. 9113500227
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