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Porsche 911 Carrera 2.7 (1974 – 1975)

The North American Top-911 Model for 1974 Was Down On Power Vs the Rest of the World Versions

Porsche 911 Carrera 2.7
Model
Porsche 911 Carrera 2.7
Model Years
1974 - 1975
Production
N/A
Engine
2.7 L Aircooled Flat 6
Power
175 bhp @ 5800 rpm
Torque
168 ft lbs @ 5200 rpm
0 - 60 mph
7.0 seconds
Top Speed
144 mph

(1974 – 1975) Porsche 911 Carrera 2.7 CIS – Ultimate Guide

Production of the second generation 911 started in August 1973. The 1974 model year G-series derivative replaced the outgoing 1973 model year F-series. Visually, the new 911 was given a major facelift and all three production variants now came with fuel-injected 2.7-litre engines.

The entry level 911 had 150 bhp, the mid-range 911 S offered 175 bhp and the flagship 911 Carrera came with 210 bhp. That is of course unless you lived in the United States, largely because by the early 1970s, complying with tightening US safety and emission legislation was becoming a real headache for most high performance European manufacturers, so they had to create North American specific models.

The Porsche 911 Carrera 2.7 Coupe for the North American market was the top variant of the 911 available between 1974 and 1975. Often referred to as the Carrera 2.7 CIS, it was powered by the same engine in the 2.7-Liter 911S producing 175 hp. Its more powerful sibling for non-US markets (ROW) is known as the Carrera 2.7 MFI. For the 1976 model year, the US-spec Carrera 2.7 was phased out in favor of the 2.7L 911S variants or the 911 Turbo 3.0.

The is no doubt that the the Carrera 2.7 model built for all markets, except for the United States, was the more interesting and exciting car. It used the 210 hp RS 911/83 engine with Bosch mechanical fuel injection pump from the 1973 Carrera RS. Known as the Carrera 2.7 MFI models were built from 1974 until 1976 and were mechanically identical to the 1973 Carrera RS.

On this page we take a closer look at the Carrera 2.7 model produced for the North American markets, often referred to as the Carrera 2.7 CIS. The 911 Carrera was essentially banned from the USA in its normal 210 bhp configuration as the mechanical fuel-injection and radical valve timing did not meet Federal standards. Instead, it was powered by the same 2.7-litre engine as the 911S which produced 175 hp. The initial Carrera 2.7 models had the same welded-on rear RS flares, before switching to the SC stamped style rear flares during the middle of the 1974 production year. The Carrera 2.7 coupes weighed in at 2,370 lb, the same weight as the 1973 Carrera RS Touring.

Other changes made to American-spec. 911s over their rest of the world counterparts included extra sidelights, red tail lights and bumpers mounted on hydraulic shocks. Those new bumpers had to comply to American regulations. For the 1974 model year, the Carrera 2.7 was available with the “ducktail” rear spoiler first introduced with the 1973 Carrera RS. In the North American markets, the ducktail was standard equipment for the Carrera. All other markets the ducktail was optional, except for the home German market where the ducktail had been outlawed by the TÜV road homologation department. This led to the introduction of the whale tail rear spoiler, available as an option on the 1974-75 Carrera 2.7 models, as well as the newly introduced 930 Turbo.

Other new features for 1974 included new seats, a full-width rear taillight. The Carrera deleted all the chrome off the car in favor of black window frames, wipers, doorhandles, but chrome could be ordered as an option. The 911 Carrera was the top-dog of the 911 range. There was the base 911, the 911 S and then the Carrera on top. The base car was the big seller, followed byt he Carrera and then the mid-range S.

In August 1974, Porsche began production of the 1975 model year H-series 911. Universal upgrades included extra sound insulation and an additional heater fan. Steel wheels were deleted from the range and 911 Carreras now came with body colored headlight surrounds as standard. The Ducktail rear spoiler option was dropped in favor of a new 3.0 Carrera RS-style Whale Tail. When this was specified, a discrete matt black chin spoiler was added at the front of the car.

The spoiler option pack was made standard on US-bound 911 Carreras which still came with the 175bhp 911 S engine rather than the rest of world 210 bhp unit. Porsche dropped the entry level 911 from the US market and now offered American customers two types of de-tuned 911 S engine (which were also fitted to US-bound 911 Carreras). In 1976 Porsche replaced the Carrera with a new 3.0 liter variant that used the a version of the 911 Turbo engine and it’s larger wheel arches.

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