Porsche 911 Turbo
The Porsche 930, better known as the Porsche 911 Turbo is a sports car that was produced from 1974 to 1989 based on the Porsche 911.
At its launch, the vehicle was the fastest mass-produced sports car in Germany. The 930 was the first production sports car in the Porsche einbaute a turbocharger. He was the top model of Porsche, which was initially offered only as a coupe, since 1987 also in the following body Targa and Cabriolet.
The related racing models Porsche 934 and Porsche 935 have been used successfully in groups 4 and 5 of the World Sportscar Championship and also in Division 1 of the German Racing Championship.
- 2.1 911 Turbo 3.0 Type 930 ( 1974-1977 )
- 2.2 911 Turbo 3.3 Type 930 ( 1978-1989 )
- 2.3 911 Turbo 3.3 PCB Type 930 ( 1981-1989 )
- 6.1 911 Turbo 3.3 Group B ( from 1982)
- 6.2 The results 1977-1984
For the 1976 valid from Group 4 of the World Sports Car Championship, Porsche was planning a lightweight 911. This race car should be equipped with a turbocharger, the six-cylinder boxer engine of the Porsche 911 Carrera RS 3.0. Short-term changes in the regulations of the FIA , in which the vehicle 's minimum weight has been lifted, reduced the odds of the future race car. Therefore Porsche stopped the development of the vehicle.
The recovered with the racing car development experience in turbo engines used Porsche to design a sports car, the approach presented to the competition from Ferrari and Lamborghini. The car should be used as top model with the design, engine power and equipment to fill this gap. Because of its many, especially in the motor, comprehensive changes to the standard 911ern the car was given a separate type number of 930.
Many design elements of the 911 Turbo 3.0 were taken from the 911 Carrera RS. These included the 2.7 again to accommodate over the 911 Carrera RS by about 50 mm widened front and rear fenders, which were necessary wide tires on light metal rims fox under the body. To reduce lift on the front and rear axle and to increase the stability at higher speeds, the car received a front and rear spoiler. The large and flat rear spoiler resembled a Walschwanzflosse and was the main distinguishing feature of the sports car.
With the 3 -liter six- cylinder boxer engine of the Carrera RS 3.0 Porsche had exhausted the then economically viable development opportunities of the suction motor. 1973 BMW already had a turbo turbocharger fitted with the BMW 2002 in a production vehicle. The idea of using a turbocharged engine in a Porsche sports car series, came from the then CEO Ernst Fuhrmann. The core of the vehicle was the 3-liter engine from the Carrera RS 3.0, in which the exhaust gas tract a KKK turbocharger was installed. This worked with speeds of up to 90.000/min and created around boost pressure up to 0.8 bar overpressure. The compressed air is pressed together with the super fuel into the combustion chambers and thus made it possible at an engine speed of 5,500 rpm maximum engine output of 191 kW ( 260 hp). In order to avoid knocking of the engine at high load, it had a low compression ratio of 6.5: 1 in order to limit the supercharging pressure, and thus the engine load, a so-called exhaust gas bypass is used, which at a charge pressure of 0.8 bar overpressure opened, so this limit could not be exceeded. Because of the engine power the chassis of the Turbo over the Saugmotormodellen had to be adjusted. The front and rear suspensions were obtained from the Carrera racing version, the wheel bearings from Porsche 917 The Hinterachslenker were aluminum, a new development. Front 19mm and rear 26mm spring bars were used with Bilstein gas pressure shock absorbers. To minimize body roll during cornering driveways, Porsche sold at the front and rear axles respectively stabilizers with a diameter of 18 mm one.
For the Porsche 930 since its introduction over the years different paint schemes were offered. In addition to the extra free serial Unilacken there were metallic finishes, so-called spot colors.
911 Turbo 3.0 Type 930 ( 1974-1977 )
The Porsche 911 Turbo was introduced in October 1974 at the Paris Motor Show for the first time to a public audience. The new sports car fell on his style similar to racing car body design and equipped with an exhaust gas turbocharger 3- liter boxer engine. Although the automotive industry had not yet recovered at the time of the oil crisis, the car received a positive review.
The engine produced at 5500 rpm, thanks to the turbocharged 191 kW (260 hp). Despite the turbo engine concept, which led to high fuel consumption in previously used race and series vehicles, such as 917 /30 and BMW 2002 turbo, Porsche was able to use for the then state of the art by a Bosch K- Jetronic fuel mixture preparation and keep contactless ignition relatively low. With the adjusted engine power four-speed manual transmission, the 930 reached a maximum speed of 250 km / h The car needed 5.5 seconds to accelerate from zero to 100 km / hr. With the first 1975 cars delivered to customers acquired a very exclusive and luxuriously appointed car. The sports car offered only as a coupe in the early years had a base price of 65,800 DM 17,000 DM and was more expensive than, say, a Ferrari 308 GT 4 For the price, the customer received a comprehensively equipped vehicle. The window frames and moldings were dull black anodized headlamp rings and the mirrors were painted in the body color, underlining the sporty nature of the 911 Turbos. The standard was a metallic paint that could be exchanged free of charge at the order in any other color.
As standard, the car was with 185/70-VR-15-Reifen on 7J x 15 wheels front and 215/60-VR-15-Reifen on 8J x 15 wheels shipped back. As a special request could instead tires with 205/50 VR 15 front and 225/50 VR 15 ordered back on the same rim width. The windows were tinted green all around, and the rear and windshield could be heated. The rear window wiper, the wiper interval switch for the front wiper and headlight cleaning system made for clear vision and increased driving safety. In order to make as comfortable as possible, traveling by Porsche, the car had an automatically regulated heating, electric windows and electrically adjustable front seats. An optional air conditioning ( refrigeration unit) for 2400 DM was available.
The interior consisted of a leather - fabric combination of the front and rear seats and door panels. Another distinguishing feature of the 911ern with naturally aspirated engines had the 930 on the left rear side of the rear seat back an embroidered " Turbo " lettering. The standard was a three-spoke leather steering wheel. Behind it were as common in the 911, the five round instruments with fuel and oil level indicator, temperature and oil pressure gauge, tachometer with boost gauge ( 1977 ), speed and mileage display and analog quartz watch.
1976 Turbo was all other Porsche models from hot-dip galvanized steel sheets produced as and, for a period of six years against rust perforation of the floor assembly. The equipment scope was expanded to include electrically adjustable and heated door mirrors. The wheels with Pirelli P7 tires with 205/50 VR 15 front and 225/50 VR 15 back on forged aluminum wheels in the dimensions 7J x 15 front and 8J x 15 rear now included as standard equipment.
The turbo was first sold in the year in the U.S. and Canada, due to stricter emissions regulations but with a slightly lower engine output of 180 kW (245 hp). The Porsche Turbo enjoyed at its launch in the U.S. and Canada great popularity. 1976 520 copies of the 911 Turbo have already been exported to the USA.
In its last year of production of the 930 experienced a number of technical improvements and upgrades. The two fuel pumps were replaced with improved versions. The fuel filter and the fuel pressure accumulator are also changed. It was now at the front axle instead of a stabilizer having a stabilizer 18 mm with 20 mm diameter, whereby the driving stability is further increased. The car had 1977 standard on 16 -inch wheels with 205/55-VR-16-Reifen on 7J x 16 wheels front and 225/50-VR-16-Reifen on 8J x 16 rims.
So that the driver could monitor the boost pressure of the turbocharger, in the rev counter a pressure gauge was installed and for the increased comfort preferences, Porsche delivered standard with a coupling means and a brake booster. A new center console, the illuminated central ventilation regulation and the warning display for hand brake and driver's safety belt evaluated the sports car to continue. Inside, the car received new materials and new exterior paint colors to choose from.
The combination of luxury and performance that offered the 911 Turbo 3.0, enthusiastic buyers had expected more than Porsche. For the planned homologation as a Group 4 car in the sports car world championship until 1976 had a total of 400 vehicles to be produced. Instead of the planned on a small scale in 1000 copies by the end of 1977 end 2876 cars were built. The following year the more powerful successor model Porsche 911 Turbo 3.3 broke the car from.
911 Turbo 3.3 Type 930 ( 1978-1989 )
Despite the high engine power, the 911 Turbo 3.0 offered, many customers wanted an even more powerful 911 sports car. Porsche responded and developed in 1977 based on the first turbos a more powerful vehicle. The new 911 Turbo 3.3 -called car made 221 kW ( 300 hp) at an engine speed of 5500 rpm. This was achieved by increasing the displacement from three to 3.3 liters, an increase in the compaction of the six-cylinder boxer engine at 7: 1 and the additional use of an intercooler. Through the intercooler first time on a production vehicle was reached that for the same compression by the turbocharger came in more air into the cylinders, because the cooling takes the specific volume from ( "the air will contract "). Simultaneously, because of the lower temperature, the compression to be made higher than the knocking tendency increases with the temperature of the compressed gas. It is this improved internal cooling allowed for an increase in the compression. The new 930 still had a four-speed manual transmission, with a top speed of 260 km / h and acceleration from zero to 100 km / h in 5.3 s could be reached.
Buyers in the U.S., Canada and Japan were the sports cars because of there stricter emission regulations in a slightly less powerful version with 195 kW (265 hp). Externally, the car remained almost unchanged with its front and rear fenders widened sharply compared to the previous model. Only on the modified rear wing, both vehicles were indistinguishable. Similar to this in the Turbo 3.0 yet Walschwanzflosse, the 3.3 -liter turbo, however, had a larger rear wing with base unit, so that the intercooler was space underneath. In addition, the circumferential rubber lip was pulled up at the edges, so to usher in even more air into the engine compartment can.
As standard, the Turbo with 205/55-VR-16-Reifen was on 7J x 16 wheels front and 225/50-VR-16-Reifen equipped on 8J x 16 rear rims. The brake system of the increased engine performance has been adjusted. The internally ventilated and perforated disc brakes were now fitted over the 3 -liter turbo thicker and with larger ventilation channels. The four-piston aluminum brake callipers were derived from the Porsche 917 and had for better heat dissipation fins.
The extensive interior remained unchanged to the previous model. 1979 received the turbo a new exhaust system. By switching from the single-tube to a two-pipe system, the maximum noise level of 82 dBA to 79 dBA has been reduced and the ride comfort can be further increased. Until 1982 it was the next comprehensive technical change. The consumption in city traffic could be reduced through improved mixture preparation of 20 liters to 15.5 liters per 100 km. In addition, Porsche built an additional fan in the footwell, so the heated air from the engine came quickly into the interior when needed. In order to increase the quality of the music playback, the standard built-in stereo cassette radio was fitted with a more powerful sound system and four speakers. On request, radios with digital display were ordered. In the years 1983 and 1984 Porsche upgraded the car to a brake pad wear indicator in the interior for easier control of the brake pad wear and a standard central locking and anti-theft device. The brakes became easier through a revised brake booster. Thicker stabilizers that are from 20 mm to 22 mm at the front and 18 mm to 20 mm reinforces the rear increased driving stability during cornering driveways. The fog lights are integrated in the front apron.
From 1984, the buyer had the opportunity through a plant capacity increase ( WLS) by 22 kW to raise the standard engine power (30 hp). The modified engine generated at 5750 rpm now 243 kW (330 hp). These had provided, and are incorporated in the front apron, an oil cooler, among other things, the exhaust system with the left and right sides brought out twin tailpipes. The oil cooler could be ordered as a visible means cooler with a modified front spoiler or as additional hidden behind the radiator at Serienbugschürze attributable fog lamps. All vehicles with WLS were delivered solely to the rear wheels combined amended 245/45 VR 16 on 9J x 16 wheels instead of 225/50 VR 16 on 8J x 16 rims. A year later, this vehicle belonged tires as standard. The changes could only be ordered with Porsche special request program or Porsche Exclusive program.
Many buyers with a 911 naturally aspirated engine, the appearance of the Porsche 911 Turbo wanted for her car. This conversion took place from approximately 1981 to later in the repair department at Porsche. From 1984, the conversion could be ordered as optional equipment request directly from the factory. This factory Turbo look ( WTL ) contained, in addition to the general body of the turbos also its running gear with the brake system. Another exclusively offered for the turbo order option was the so-called low-rise building in which the 930 especially the cars front optics of the Porsche 935 race car could get.
1985 buyers got a turbo a car, in which the interior and the heater and fan system has been further improved in particular. This was recognized by the enlarged and redesigned air vents in the dashboard. Located on the top edge of the windshield sensor for the heating control was set by Porsche between the steering wheel hub and ventilation control. The two now concealable make-up mirrors in the sun visors and the intensive screen cleaning system made for other equipment comfort. The three-spoke leather steering wheel has been replaced by a new four-spoke leather steering wheel with impact absorber lederüberzogenem. A year later the seat comfort has been further enhanced by the vehicle was fully electric seats, where the height, length and backrest adjustment could be adjusted by pressing a button on the side of the seat. Together with a year earlier 20 mm down-converted and extended in the longitudinal adjustment front seats a very comfortable travel was possible even for tall drivers. For the first time the car radio flagship Berlin JQR was 86 contain Blaupunkt in the standard equipment. In addition to an increase in output power the radio contained an anti-theft coding, the radio switched on again after a free expansion only after correct code entry. In the United States, Canada and Japan by 12 kW ( 17 hp ) was delivered more powerful engine variant, which made 207 kW ( 282 hp).
Since its introduction in 1974, the Turbo was only available in the coupe body version. The two body styles Targa and Cabriolet were the 911 reserved with naturally aspirated engines. Many Porsche customers wanted in 1981 at the IAA in Frankfurt presented and available on the 911 SC from 1983 convertible body for the turbo. 1987 Porsche responded to customer requests and offered the 930 next to the Coupé as Targa and Convertible to. The Turbo Cabriolet with the serially operated convertible top was very successful and was named after the coupe, the second most sold design. Since the rear fog lamp included in the standard since 1981 has been integrated into the reflector tape, the "Porsche " lettering was narrower and designed in black instead of red. A year later, both sides were the electrically adjustable and heated door mirrors as standard equipment. Inside Raffledersitzbezüge and site preparation for the subsequent installation of a C-net - car phone were ordered. 1989, the last year of his delivery, the Porsche 930 five-speed manual was first instead of the four-speed manual transmission with a hydraulic clutch actuation. Thus, a smooth shifting and quicker acceleration compared to the previous vehicles was possible. In addition, the rear axle has a 1 mm to 22 mm increasing stabilizer and harder shock absorbers matched the performance of the vehicle is further improved. For health and environmental reasons were the brake and clutch linings, as well as the engine and transmission gaskets of asbestos-free material. To better secure the vehicle against theft, it contained a new standard alarm system with immobilizer, when in the locking pins built-in flashing LEDs anzeigten operation. In the coupe version of the turbo had a base price of 135,000 DM; as a convertible version cost the car last without special equipment 156,500 DM
After eleven years and 17 381 copies produced, the production of the Porsche 911 Turbo 3.3 was set. His successor was produced from 1990 Porsche 964 Turbo.
911 Turbo 3.3 PCB Type 930 ( 1981-1989 )
Early 1980s were modifications to the 930, with which it has had the front look of the race car Porsche 935, especially in the U.S. very popular. Porsche therefore offered from 1981 to a flat - conversion for the turbo models. This conversion was not available as additional equipment as standard, but was carried out subsequently via the special order program in the Porsche Repair Crafts department.
The modification consisted of various elements that had to be ordered separately. The full flat - rebuild included the actual flat car front in 935 optic with the recessed in the fenders pop-up headlights and the front apron centrally positioned engine oil cooler, the Radhausentlüftungen in the front fenders, the side skirts and the air inlet holes on the rear fenders. Initially, it was offered alongside the car front with pop-up headlights, a version in which the headlights were integrated into the front spoiler. In this embodiment, the repair department represented only 58 copies ago. Of the tags with pop-up headlights in the fenders 204 vehicles emerged in subsequent hand. From 1984, the flat belonged to the special features list. The turbo flat was produced as direct from the factory in the regular production, a total of 686 vehicles in series within the Porsche Exclusive program. The conversion costs amounted depending on the scope of the renovation in 1985 to up to 27,500 DM Combined buyer turbo flat with an increase in output at the factory, the purchase price of the 3.3 -liter turbo nearly doubled.
Since the conversion components even without the flat front were sold individually, many vehicles were partially ordered with the air inlet holes on the rear fenders without additional body changes.
Meanwhile, an original Porsche built turbocharged 3.3 - rise building is one of the very rare 911 models, reaching 2012 in good to very good condition Price 80000-100000 euros.
The Porsche 930 was produced with this Porsche 's internal designation from 1974 to 1989 in the following versions:
1 WLS stands for plant performance improvement
In the United States, Canada and Japan had the 3- liter turbo only an output of 180 kW (245 hp) and the 3.3 -liter turbo, a reduced initial capacity of 195 kW (265 hp) and 207 kW from 1986 by (282 hp).
Graphical representation of the development 930s
The Porsche 930 was produced in the following quantities per model year.
Source: Jürgen Barth, Gustav Busing: The Big Book of Porsche types. Models with rear engine. Engine book publishing house, Stuttgart 2010, p 288 to p 297
Although the Porsche 930 was in contrast to the racing models 934 and 935 not specifically designed for motor sports, individual racing teams 1977-1984 put him in some races in the World Sportscar Championship. There, the vehicles started in the group GT and in the years 1983 and 1984 in Group B also in the 24- hour race at Le Mans. There, reached the 930 as the best placement in 1983 to eleventh place in the overall standings and the class win in Group B.
As a best finish at the World Sports Car Championship the car at the 1000 km race at the Nürburgring in 1983 was driven by the team Edgar Dören to seventh place in the overall standings and class win in Group B.
911 Turbo 3.3 Group B ( from 1982)
The group had B -930 engine power of 269 kW ( 365 hp), which was achieved by a slightly raised compression, a different camshaft and an increase in turbocharger pressure. In order to operate the car with these changes in racing over 24 hours without engine overheating, Porsche built a larger charge-air cooler and oil in the vehicle. In addition, the vehicles had a special tires with front 9.5 J x 16 and rear 11J x 16 wide rims. For the engine and chassis changes the teams had around 28,000 DM additionally invest to the car price.