A year later, the engines were enlarged yet again – this time to 2.4 litres.
Also, an intermediate model (the 911E, with injection equipment) was added to the range.įor 1970, an increase in bore diameter upped the displacement from 2.0 to 2.2 litres. At the same time (September 1968), the 911S acquired Bosch petrol-injection equipment instead of its former triple-choke carburettors. Flared wheel housings accompanied a change to wider rims and fatter tyres a little more than a year later. Internally-vented discs were adopted in May 1967 (1970 in the case of the 911T). The summer of 1966 saw the introduction of the higher-performance 911S version, with its distinctive light-alloy wheels. Not that Porsche cars are any the less attractive as a result of this with their classically elegant lines and superlative finish, they are amongst the most desirable cars on the road today.īeneath the skin, a great deal has happened. Most of the visible alterations such as they are, have been dictated by practical engineering considerations.
#1974 PORSCHE 911 ENGINE SERIES#
The appearance of the 911 series has changed very little since the introduction of the 901 prototype (later to become the production 911) some 11 years ago. Porsche are-not at all influenced by fashion. Other detail changes render car even more practical and comfortable, but heating system still leaves room for improvement.īy comparison with most manufacturers. Use of collapsible spare tyre has allowed a substantial increase in tank capacity, thus further improving the range.
Despite modest reduction in top end power, larger engine develops considerably more torque at lower speeds and shows a spectacular improvement in fuel economy.
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