1974 Porsche Carrera 3.0 RSR

The 3-liter Porsche Carrera RSR was one of the great long distance sports-racing cars of the early 1970s. Just 57 of these 330 bhp “evolution” versions of the already exciting Carrera RS were built, but they were successful beyond all expectations, winning every GT championship entered throughout the world.

The engine received a secondary ignition system, so an extra spark plug per cylinder was adopted, higher lift camshafts were specified, a higher flow fuel injection pump, and sliding, rather than butterfly, throttle bodies used in order to provide the necessary increase in power. As much as 345 bhp was achieved by some teams using even wilder cams.

An uprated Fichtel & Sachs sintered clutch coped with the extra power while the front suspension was lowered and rear pick up points were altered. Titanium springs and light alloy dampers were also incorporated.

Front wheel width increased to 10.5” and rears were 14” wide and to accommodate them...