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9113600756 was completed in February of that year in a striking yellow color carrying engine nr 6930114 and gearbox nr 7931024. The suspension refinements and a 917-based braking system greatly enhanced handling and drivability while the RSRs chassis was strengthened in three key areas at the rear of the car to cope with the demands of high speed racing.One of just 55 RSRs constructed for the 1973 season, chassis no. Wider Fuchs wheels and wheel arches, as well as a low-level front air dam with integral oil cooler, gave the RSR a much more aggressive disposition. Despite already being lightweight, a further 80 kg was trimmed from the 2.7 RS, the engine capacity was enlarged by 119cc to 2.8 liter with bigger valves, twin-plug ignition, raised compression ratio, and extensive lightening of internal components contributed to an impressive performance of over 300 bhp.
#1973 porsche 911 engine full#
For this, they took a select few cars 55 in total - from the Carrera RS 2.7 production line and turned them into full M-491 optioned Renn Sport Rennen (RSR) configuration. We are delighted to offer this rare, stunning and blue-chip 1973 Porsche 911 Carrera 2.8 RSR - chassis 9113600756 - for sale. While leading the 1972 European GT Championship with its Porsche 911 S(T), Porsche decided to develop a new race car for long-distance GT racing in the 1973 season.