Porsche Index: 2.4S
The 2.4S has long been revered as one of the most desirable early classics. Here’s everything you need to know about the model and what to look for when buying one
The 2.4S is revered as one of the best long-bonnet 911s you can buy. Here’s everything you need to know when searching for one
Only a few years had passed since the 911’s arrival when Porsche introduced a new range-topping model. The ‘Super’ was a clear statement of intent by Zuffenhausen, one that reinforced the Neunelfer’s reputation as a proper sports car. Not only did it boast the highest power output, but the S was also the first model to receive a more focused specification that included light alloy Fuchs wheels, uprated suspension with antiroll bars front and rear, and ventilated disc brakes. Continuous development brought more power and fuel injection, and the arrival of the E Series in 1972 introduced a larger engine. This was the 2.4S, the 2,341cc flat six now producing 190hp and a beefier 211Nm of torque.
The increase in capacity was achieved by fitting a longer-throw crankshaft for a stroke of 70.4mm, and it was accompanied by a lower compression ratio (8.5:1 compared to the 9.8:1 of the 2.2S) that improved emissions and allowed the new model to run on 91 octane fuel. The steel con-rods received a different hardening treatment, there were oil jets to cool the pistons, and a more efficient oil cooler was employed. Also worth noting is that the fatter torque was produced at a peaky 5,200rpm, something that altered the way the S drove compared to the more relaxed E and T models. However, Porsche claimed identical performance figures to the previous 2.2S: a maximum of 140mph with 0-62mph in 6.6 seconds. Those figures were delivered via the Type 915 transmission with revised ratios, while buyers also had the option of the Type 925 Sportomatic gearbox (it was stronger than the Type 905 used previously). There was a minor increase in overall weight compared to the previous model, but at 1,077kg this was still a lithe car by any measure and a fitting way to demonstrate the 911's sporting credentials. Externally, the new model could be identified by the 2.4 badge on the engine lid’s grille which was now painted black, and the E Series also brought with it a slightly more curious development – the external oil filler. Intended to improve the weight distribution (and handling) by relocating the oil tank, it proved confusing and unpopular and was dropped for the F Series model that arrived in 1973. That change was also accompanied by exterior tweaks that included black instead of chrome trim. Buyers could have their 2.4S in Coupe or Targa body styles, while zinc-coating the lower half of the shell brought some improvement in corrosion resistance. In all, just over 5,000 examples were produced and the 2.4 would be superseded by the G Series 911 of 1974 with its 2.7-litre engine.