The original Porsche 911 Carrera RS 2.7 produced 210 hp at maximum power.
Introduced for the 1973 model year, the Carrera RS 2.7 was created to satisfy motorsport homologation requirements. Porsche needed to build enough road cars for the model to qualify for FIA Group 4 competition, and demand quickly exceeded the original production plan. The RS name stands for Rennsport, meaning “racing sport” in German.
Its 2.7-liter flat-six displaced 2,687 cc and used Bosch Kugelfischer mechanical fuel injection. The engine’s rated output is often written as 210 PS, equivalent to about 207 mechanical horsepower; automotive references and quiz listings commonly round or label that figure as 210 hp. That unit convention explains why both figures may appear in specifications.
The RS combined power with extensive weight and chassis work. Buyers could choose the more comfort-oriented Touring version or the lighter Sport Lightweight model. Its distinctive “ducktail” rear spoiler, widened rear arches, firmer suspension and larger brakes became defining features. The later Carrera RS 3.0 was a different model, rated at approximately 230 PS, not the original 2.7.