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Porsche 911 E 2.4 (1972 – 1973)

911E was the mid-range option in the E-series and F-series 911s. It benefited from the larger 2.4 engine

Porsche 911 E 2.4 (LWB)
Model
Porsche 911 E 2.4 (LWB)
Model Years
1972 - 1973
Production
1088 coupes, 935 targas
Engine
2.4 L Aircooled Flat 6
Power
165 bhp @ 6200 rpm
Torque
151 ft lbs @ 4500 rpm
0 - 60 mph
7.5 seconds
Top Speed
137 mph

1972 – 1973 Porsche 911 E 2.4 (LWB) – Ultimate Guide

The Porsche 911E was the mid-range option in the E-series and F-series 911s. It benefited from the larger 2.4 engine which used a longer stroke for a total displacement of 2341 cc. Porsche 911Es had steel wheels for 1972 that were upgraded in 1973 to a 6Jx15 alloy wheel by ATS.

2.4 E-Series (1972)

Competition in the 2+2 market was starting to heat up when Porsche unveiled the 2.4-litre E-series 911 in September 1971. The 2.4-litre cars were built as 1972 and 1973 model year vehicles. With their powerful, torquey engines and new Type 915 gearboxes, they widely came to be regarded as the best F-body 911s and the final iterations of the classic 911 before the G-Series came along in 1974. Like the 2.2 L cars, the 2.4 L 911s were offered in three levels and two alternative body styles (Coupe and Targa). There was the entry level 911 T, the mid-range 911 E and the sportiest 911 S.

Under the skin, little changed. The 911 was still built on a unitary steel bodyshell, with suspension that was fully independent with torsion bars and telescopic shocks. The front end used a compact MacPherson strut arrangement with a single lower wishbone while at the rear, semi-trailing arms were installed. The wheelbase was extended by 3mm thanks to altered rear suspension mounting points (an attempt to eliminate compound movement of the strut). The main benefit was slightly better ride quality versus the prior year models. The rear semi-trailing arms were revised to allow their removal without having to drop the engine out of the car. Boge’s hydro-pneumatic shocks previously used on the 911 E were made optional as this variant reverted to the same suspension set up as the 911 T.

The 15-inch Fuchs alloys that were standard on all 2.2-litre 911s were now optional on the 911 T and 911 E. Standard equipment for the 911 E was was new 6-inch wide ATS cookie cutter alloys. Front and rear anti-roll bars were fitted as standard to the 911 S which now came with a secondary oil cooler fitted in the right-hand front fender.

The bigger 2.4-litre engines not only gave more power and torque, they also helped Porsche comply with increasingly stringent emissions legislation. Furthermore, the 2.4 lump enabled the use of lower compression ratios as fuel quality was dropping in lots of markets. Thanks to a 4.4mm lengthening of the stroke (from 66mm to 70.4mm), displacement rose from 2195cc to 2341cc. Bore dimensions were unchanged at 84mm. These engines featured new camshafts, shorter and lighter con rods, reduced height piston crowns cooled by individual oil jet sprays, improved porting, larger big ends, full crankshaft counter-balancing, a crankcase stiffened around the main bearings and a new forged crankshaft.

The 911 E had a 8.0:1 compression and came with Bosch mechanical fuel-injection. Peak power was 165 bhp @ 6200 rpm and torque was 151 ft lbs @ 4500 rpm, up 10 hp and 10 ft lbs over the previous year’s 2.2L E. All 2.4-litre 911s came with a new Type 915 gearbox that afforded greater torque capacity than the outgoing 901 unit albeit at the expense of an additional 9kg. The 915 gearbox had a conventional gate pattern instead of the old dogleg first. In the E, it was specced as a five-speed. 0 – 60 mph took 7.5 seconds and the quarter mile was about 15 seconds. Top speed was 137 mph. 

Cosmetically, E-series 911s came with a distinctive oil filler cap positioned behind the right-hand door which was opened by a button on the adjacent door pillar. Other universal changes included a black instead of aluminium engine grille and gunmetal model script rather than anodized gold.

Production began in August 1971 and continued for twelve months. The 911 E was the least popular of the three variants, with 1124 coupes produced and 861 targas produced for the 1972 model year.

2.4 F-Series (1973)

Porsche’s 1973 model F-series 911s were produced from August 1972 and ushered in another round of upgrades. The oil filler located behind the right-hand door was dropped after owners and petrol station attendants repeatedly mistook it for the fuel filler. The horn grilles and supplementary light surrounds at either end were now finished in black instead of chrome. A rear wiper was fitted across the range.

Production of the F-series 911 continued until July 1973 and in that time 1366 coupe 911 E 2.4 and 1055 targa 911 E 2.4 cars were produced.

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