1977 Porsche 911 S

Model year 1974 (G Series. Aug. 1973 to July 1974 production) saw three significant changes. First. the engine size was increased to 2687 cc achieving higher torque. Second. new impact bumpers conformed with low-speed protection requirements of US regulations. Thirdly. the use of K-Jetronic CIS Bosch fuel injection in two of the three models in the line up— the 911 and 911S models. retaining the narrow rear arches of the old 2. 4. now had a 2. 7-litre engine producing 150 PS (110 kW; 150 hp) and 175 PS (129 kW; 173 hp). respectively.

The 911 traces its roots to sketches drawn by Ferdinand "Butzi" Porsche in 1959. [10] The Porsche 911 was developed as a more powerful. larger. more comfortable replacement for the Porsche 356. the company's first model. The new car made its public debut at the 1963[1] Frankfurt Motor Show (German: Internationale Automobil-Ausstellung). [11] The car was developed with the proof-of-concept twin-fan Type 745 engine. and the car presented at the auto show had a non-operational mockup of the production single-fan 901 engine. receiving a working one in February 1964. [10]

It originally was designated as the "Porsche 901" (901 being its internal project number). 82 cars were built as 901s. [10] However. nbsp;Peugeot protested on the grounds that in France it had exclusive rights to car names formed by three numbers with a zero in the middle. So. instead of selling the new model with another name in France. Porsche changed the name to 911. Internally. the cars' part numbers carried on the prefix 901 for years. [10] Production began in September 1964. a rel="rel nofollow" href="https://en. wikipedia. org/wiki/Porsche_911#cite_note-Eleven-11" >[11] the first 911s reached the US in February 1965 with a price tag of US$6. 00. [10]

The earliest edition of the 911 had a 130 metric horsepower (96 kW; 128 hp)[1] Type 901/01 flat-6 engine. in the "boxer" configuration like the 356. nbsp;air-cooled and rear-mounted. displaced 1991 cc compared with the 356's four-cylinder. 1582 cc unit. The car had four seats although the rear seats were small. thus the car is usually called a 2+2 rather than a four-seater (the 356 was also a 2+2). It was mated to a four or five-speed manual "Type 901" transmission. The styling was largely by Ferdinand "Butzi" Porsche. son of Ferdinand "Ferry" Porsche.  Erwin Komenda. the leader of the Porsche car body construction department. initially objected but later was also involved in the design.

The 356 came to the end of its production life in 1965. but there was still a market for a 4-cylinder car. particularly in the USA. The Porsche 912. introduced the same year. served as a direct replacement. offering the de-tuned version of 356 SC's 4-cylinder. 1582 cc. 90 hp (67 kW) boxer four Type 616/36 engine inside the 911 bodywork with Type 901 four speed transmission (5 speed was optional).

In 1966. Porsche introduced the more powerful 911S with Type 901/02 engine. the power raised to 160 PS (118 kW; 158 hp). Forged aluminum alloy wheels from Fuchs. in a distinctive 5-spoke design. were offered for the first time. In motor sport at the same time. the engine was developed into Type 901/20 installed in the mid-engined Porsche 904 and Porsche 906 with 210 PS (154 kW). as well as fuel injected Type 901/21 installed in 906 and 910 with 220 PS (160 kW).

In Aug. 1967. the A series went into production with dual brake circuits and widened (5. 5J-15) wheels. and the previously standard gasoline-burning heater became optional. The Targa (meaning "plate" in Italian[12]) version was introduced. The Targa had a stainless steel-clad roll bar. as Porsche had. at one point. thought that the U. S.  National Highway Traffic Safety Administration (NHTSA) would outlaw fully open convertibles in the US. an important market for the 911. The name "Targa" came from the Targa Florio sports car road race in Sicily. Italy in which Porsche had several victories until 1973. The last win in the subsequently discontinued event was scored with a 911 Carrera RS against prototypes entered by Ferrari and Alfa Romeo. The road going Targa was equipped with a removable roof panel and a removable plastic rear window (although a fixed glass version was offered from 1968).

The 110 PS (81 kW; 108 hp) 911T was also launched in 1967 with Type 901/03 engine. The 130 PS (96 kW; 128 hp) model was renamed the 911L with Type 901/06 engine and ventilated front disc brakes. The brakes had been introduced on the previous 911S. The 911R with 901/22 engine had a limited production (20 in all). as this was a lightweight racing version with thin fiberglass reinforced plastic doors. a magnesium crankcase. twin overhead camshafts. and a power output of 210 PS (154 kW).

The B series went into production in Aug. 1968 that replaced the 911L model with 911E with fuel injection. and remained in production until July 1969. 911E gained 185/70VR15 tires and 6J-15 wheels.

The C series was introduced in Aug. 1969 with enlarged 2. 2 L engine (84 mm bore x 66 mm stroke). The wheelbase for all 911 and 912 models was increased from 2211 to 2268 mm (87 to 89¼ in). to help remedy to the cars' nervous handling at the limit. The overall length of the car did not change. but the rear wheels were relocated further back. Fuel injection arrived for the 911S (901/10 engine) and for a new middle model. 911E (901/09 engine). A semi-automatic Sportomatic[13] model. composed of a torque converter. an automatic clutch. and the four-speed transmission was added. It was canceled after the 1980 model year[14] partly because of the elimination of a forward gear to make it a three-speed. [14]

The D series was produced from Aug. 1970 to July 1971. The 2. 2 L 911E (C and D series) had lower power output of the 911/01 engine (155 PS (114 kW; 153 hp) at 6200 rpm) compared to the 911S's Type 911/02 (180 PS (132 kW; 178 hp) at 6500 rpm). but 911E was quicker in acceleration up to 160 km/h (100 mph).

The E series for 1972–1973 model years (Aug. 1971 to July 1972 production) consisted of the same models. but with a new. larger 2341 cc (142 in³) engine. This is universally known as the "2. 4 L" engine. despite its displacement being closer to 2. 3 litres. The 911E (Type 911/52 engine) and 911S (Type 911/53) used Bosch (Kugelfischer) mechanical fuel injection (MFI) in all markets. For 1972 the 911T (Type 911/57) was carbureted. except in the U. S. and some Asian markets where the 911T also came with (MFI) mechanical fuel injection (Type 911/51 engine) with power increase over European models (130HP) to 140 HP. commonly known as a 911T/E.

With the power and torque increases. the 2. 4 L cars also got a newer. stronger transmission. identified by its Porsche type number 915. Derived from the transmission in the Porsche 908 race car. the 915 did away with the 901 transmission's "dog-leg" style first gear arrangement. opting for a traditional H pattern with first gear up to the left. second gear underneath first. etc. The E series had the unusual oil filler behind the right side door. with the dry sump oil tank relocated from behind the right rear wheel to the front of it in an attempt to move the center of gravity slightly forward for better handling. An extra oil filler/inspection flap was located on the rear wing. for this reason it became known as an "Oil Klapper". "Ölklappe" or "Vierte Tür (4th door)". This rare 1972 911 is considered highly collectable due to the small run of 1 year only cars produced.

The F series (Aug. 1972 to July 1973 production) moved the oil tank back to the original behind-the-wheel location. This change was in response to complaints that gas-station attendants often filled gasoline into the oil tank. In January. 1973. US 911Ts were switched to the new K-Jetronic CIS (Continuous Fuel Injection) system from Bosch on Type 911/91 engine.

911S models also gained a small spoiler under the front bumper to improve high-speed stability. The cars weighed 1050 kg (2315 lb). The 911 ST was produced in small numbers for racing (the production run for the ST lasted from 1970 to 1971). The cars were available with engines of either 2466 cc or 2494 cc. producing 270 PS (199 kW; 266 hp) at 8000 rpm. Weight was down to 960 kg (2166 lb). The cars had success at the Daytona 6 Hours. the Sebring 12 Hours. the 1000 km Nürburgring. and the Targa Florio.

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