The Mini Cooper was launched in September 1961 and was acclaimed by the motoring press. The car had a maximum speed of around 85mph and a 0-60mph time of 17 to 18 seconds, not fast today but impressive back in 1961. Most of the hike in engine power came from the camshaft, part number C-AEG567, which was the hottest cam fitted to a production A-series until the arrival of the MG Metro in 1982. Other gains in power were realised with a cylinder head with larger inlet valves and twin 1¼ SU carburettors. Tuning guru David Vizard later tested the BMC twin-carburettor inlet manifold on a flowbench and found it to be an appallingly inefficient design...more in