The Porsche 930 was a sports car built by Porsche between 1975 and 1989, known to the public as the 911 Turbo. It was the maker’s top-of-the-range 911 model for its entire production duration and at the time of its introduction the fastest production car available in Germany.
Porsche began experimenting with turbocharging technology on their race cars during the late 1960s, and in 1972 began development on a turbocharged version of the 911. Porsche originally needed to produce the car in order to comply with homologation regulations and had intended on marketing it as a street legal race vehicle like the 1973 Carrera 2.7 RS. The FIA’s Appendix “J” rules that brought about the 911 Turbo Carrera RSR 2.1 in 1974 changed in 1975 and 1976. The FIA announced that cars for Group 4 and Group 5 had to look like production cars and would be for “Normal Sale” with a means the distribution of cars to individual purchasers through normal channels of the manufacture. For the 1976 season, new FIA regulations required manufactures to produce 400 cars in twenty-four months to gain approval for Group 4. Group 5 would require the car to be derived from a homologated model in Group 3 or 4. To win the Group 5 Championship, Porsche would first have to have a car that could compete in Group 4 which led to the 934. For Group 5, Porsche would create one of the most successful racing cars of all time, the 935. While the original purpose of the Porsche Turbo was to gain homologation for the 1976 racing season, the marketing department soon awoke to the potential of this ultra high-performing machine when the original target of 400 cars was passed by the end of 1975. Since Porsche wanted to be racing for the 1976 season, they gained FIA homologation for the Porsche Turbo for Group 4 in Nr. 645 on 6 Dec ‘75 after they certified that 400 identical production cars had been completed. The 1,000th 1976 Turbo was completed on 5 May ‘76 and this production number allowed Porsche reclassify the Turbo for Group 3, series-production grand touring car in FIA Homologation Nr. 3076, 1 Jan ‘77. Additional variants to Group 4 (and Group 5) were promulgated in Nr. 3076 and included the 1977 model year (chassis nr. 9307700001, 1 Jan ‘77) and the 3.3 liter Turbo (chassis nr. 9308700001, 1 Jan ‘78). FIA Nr. 3076 remained in effect until replaced by FIA B-208 in 1 Mar 1982 for Group A/B when the homologation designation was changed from “Porsche Turbo” to “911 Turbo”. Ferdinand “Ferry” Porsche, who was running the company at the time, handed development of the vehicle over to Ernst Fuhrmann, who adapted the turbo-technology originally developed for the 917/30 CAN-AM car to the 3.0 litre flat-six from the Carrera RS 3.0, creating what Porsche internally dubbed as 930. Total output from the engine was 260 PS (191 kW; 256 hp), much more than the standard Carrera. In order to ensure that the platform could make the most of the higher power output, a revised suspension, larger brakes and stronger gearbox became part of the package, although some consumers were unhappy with Porsche’s use of a 4-speed whilst a 5-speed manual was available in the “lesser” Carrera. A “whale tail” rear spoiler was installed to help vent more air to the engine and help create more downforce at the rear of the vehicle, and wider rear wheels with upgraded tires combined with flared wheelarches were added to increase the 911’s width and grip, making it more stable.
Porsche badged the vehicle simply as “Turbo” (although early U.S. units were badged as “Turbo Carrera”) and debuted it at the Paris Auto Show in October 1974 before putting it on sale in the spring of 1975; export to the United States began in 1976. The 930 proved very fast but also very demanding, prone by its short wheelbase and rear engine layout to oversteer and plagued by significant turbo-lag. Porsche made its first and most significant upgrades to the 930 for 1978, enlarging the engine to 3.3 litres and adding an air-to-air intercooler. By cooling the pressurized air charge, the intercooler helped increase power output to 300 hp (DIN); the rear ‘whale tail’ spoiler was re-profiled and raised slightly to make room for the intercooler. Porsche also upgraded the brakes to units similar to those used on the 917 racecar. Changing emissions regulations in Japan and the U.S. forced Porsche to withdraw the 930 from those markets in 1980. It remained, however, available in Canada. Believing the luxurious 928 gran turismo would eventually replace the 911 as the top of the Porsche line, Fuhrmann cut-back spending on the model, and it was not until Fuhrmann’s resignation the company finally committed the financing to re-regulate the car. The 930 remained available in Europe, and for 1983 a 330 PS (243 kW; 325 hp) performance option became available on a build-to-order basis from Porsche. With the add-on came a 4-pipe exhaust system and an additional oil-cooler requiring a remodelled front spoiler and units bearing the add-on often featured additional ventilation holes in the rear fenders and modified rockers.
Porsche offered a “Flachbau” (“slantnose”) 930 under the “Sonderwunschprogramm” (special order program) beginning in 1981, an otherwise normal 930 with a 935-style slantnose instead of the normal 911 front end. Each Flachbau unit was handcrafted by remodeling the front fenders. So few were built that the slantnose units often commanded a high premium over sticker, adding to the fact that they required a premium of up to 60 per cent (highly individualized cars even more) over the standard price. Several sources claim the factory built 948 units. The Flachbau units delivered in Europe usually featured the 330 hp (246 kW) performance kit. It was in 1984 that Porsche produced the fastest of the 930 Turbos with exhilarating pace 0-60 4.6 s with a top speed of 278 km/h. These are the cars in greatest demand. By the 1985 model year 928 sales had risen slightly, but question remained whether it would supersede the 911 as the company’s premier model. Porsche re-introduced the 930 to the Japanese and U.S. markets in 1986 with an emission-controlled engine producing 282 PS (207 kW; 278 hp). At the same time Porsche introduced Targa and Cabriolet variants, both of which proved popular. Porsche discontinued the 930 after model year 1989 when its underlying “G-Series” platform was being replaced by the 964. ’89 models were the first and last versions of the 930 to feature the G50 transmission, a 5-speed manual transmission. A turbo version of the 964 officially succeeded the 930 in 1991 with a modified version of the same 3.3 litre flat-6 engine and a 5-speed transmission.
|Also called||Porsche 911 Turbo|
|Production||1975 – 1977 (3.0-liter) 2,819 produced 1978 – 1989 (3.3-liter) 18,770 produced|
|Assembly||Werk Zuffenhausen, Zuffenhausen, Stuttgart, West Germany|
|Body and chassis|
|Body style||2-door 2+2 Coupé, Cabriolet, Targa, and Speedster|
|Related||Porsche 911, 934, 935, 959, 961, 964|
|Engine||Single turbocharged and air-cooled flat-six; 3.0 (1975-1977) and 3.3 liters (1978-1989) 260 to 330 hp (DIN)|
|Wheelbase||89.4 in (2,270.8 mm)|
|Length||168.9 in (4,290.1 mm)|
|Width||69.9 in (1,775.5 mm)|
|Height||51.6 in (1,310.6 mm)|
|Curb weight||3,040 lb (1,378.9 kg)|
|Predecessor||Porsche 911 Carrera RS 3.0|
|Successor||Porsche 964 Turbo (965)|
- 1977 Brochure (US)
- 1977 German Pricelist (1st Revision – August 2, 1976)
- 930 Turbo Carrera Workshop Manual: ’76-’84
- ’65-’71 911 Workshop Manual (Volumes I, II)
- ’72-’83 911 Workshop Manual (Volumes III, IV, V, VI – USA)
- Turbosition.com (excellent 930 site)
- Hagerty Price Guide (930)
Please note, those links are DIY some other Porsche drivers have done to their cars. We can not be responsible for anything that happens if you do this to your car.
The Porsche 964 is the company’s internal name for the Porsche 911 manufactured and sold between 1989 and 1994. Designed by Benjamin Dimson in 1986, it featured significant styling revisions over previous 911 models, most prominently the more integrated bumpers (fenders). It was the first generation 911 to be offered with Porsche’s optional Tiptronic automatic transmission and all wheel drive as options.
Type 964 (“nine-sixty-four”, or “nine-six-four”) is Porsche’s internal code name for the 911 Carrera 2 and 911 Carrera 4 models, which were badged simply as “Carrera 2” and “Carrera 4”. “964” is used by automotive publications and enthusiasts to distinguish them from other generations of the Carrera.
Carrera 2 and 4
The 964 was considered to be 85% new as compared to its predecessor, the Carrera 3.2. The first 964s available in 1989 were all wheel drive equipped “Carrera 4” models; Porsche added the rear wheel drive Carrera 2 variant to the range in 1990. Both variants were available as a coupe, Targa or Cabriolet. The 964 Carrera was the last generation sold with the traditional removable Targa roof. Later evolutions of the Targa, starting with the 993 generation, replaced that setup with a complex glass-roof “greenhouse” system. A new naturally aspirated engine called the M64 was used for 964 models, with a flat-6 displacement of 3.6 litres. Porsche substantially revised the suspension, replacing the rear torsion bars with coil springs and shock absorbers. Power steering and ABS brakes were added to the 911 for the first time; both were standard. The exterior bumpers and fog lamps became flush into the car, allowing for better aerodynamics. A new electric rear spoiler raised at speeds above 50 mph (80 km/h) and lowered down flush with the rear engine lid at lower speeds or at rest. A revised interior featured standard dual airbags beginning in 1990 for all North American production cars. A new automatic climate control system provided superior heating and cooling. Revised instrumentation housed a large set of warning lights that were tied into the car’s central warning system, alerting the driver to a possible problem or malfunction.
Engine design: Air/oil-cooled, horizontally opposed, dry-sump lubrication, rear-mounted
Engine displacement: 3,600 cc (220 cu in)
Bore and stroke: 100 x 76.4 mm (3.94 x 3.01 in)
Compression ratio: 11.3 : 1
Fuel/ignition: Electronic fuel injection, DME controller, with twin-spark with knock regulation
Crankshaft: Forged, eight main bearings
Block and heads: aluminum alloy
Valve Train: Single Overhead cam (Sohc)- one per bank, double chain drive
Power: 184 kW/247 hp (SAE net)/250 PS (DIN) at 6,100 rpm
Torque: 310 N·m/228 lb·ft at 4,800 rpm
Engine speed limitation: 6,700 rpm
Top speed: 163 mph (261 km/h), 159 mph (256 km/h) (Tiptronic)
0-60 mph: 5.5 s (manual transmission), 6.2 s (Tiptronic)
1/4 mile: 13.6 s (C2), 14.0 s (Tiptronic), 14.1 s (C4)
Coefficient of drag: 0.32
Fuel consumption approx 24 mpg[vague]
Curb weight (to DIN 70020): 3,031 lb/1,375 kg (C2); 3,100 lb/1,406 kg (Tiptronic), 3,252 lb (1,475 kg) (C4)
Wheelbase: 89.4 in (2,270 mm)
Overall Length: 168.3 in (4,270 mm)
Width 65.0 in (1,650 mm)
Height: 52.0 in (1,320 mm)
Front Track: 54.3 in (1,380 mm)
Rear Track: 54.1 in (1,370 mm)
Ground Clearance: 4.7 in (US)
Fuel Tank: 20.3 gal (US)
Engine Oil: 11.5 L (12.1 qt US), oil change volume: 9 L (9.5 qt US)
Transmission Fluid: 3.6 L (3.8 qt US) (C2), 9 L (9.5 qt US (Tiptronic), 3.8 L (4.0 qt US) (C4)
Carrera RS variants
In 1992, Porsche produced a super-lightweight, rear-wheel-drive only version of the 964 dubbed Carrera RS for the European market. It was based on Porsche’s 911 “Carrera Cup” race car and harked back to the 2.7 and 3.0 RS and RSR models. It featured a revised version of the standard engine, titled M64/03 internally, with an increased power output of 260 bhp (194 kW; 264 PS) and lightweight flywheel coupled to the G50/10 transmission with closer ratios, asymmetrical Limited Slip Differential and steel syncromesh. A track-oriented suspension system with 40 mm (1.6 in) lower ride height, stiffer springs, shocks and adjustable stabilizer bars without power steering (RHD UK cars did have power steering).
A stripped-out interior devoid of power windows or seats, rear seats, air conditioning, cruise control, sound deadening or a stereo system (optionally fitted) and new racing-bucket front seats were part of the package. The trunk hood was made of aluminum, the chassis was seam welded and sound deadening was deleted. Wheels were made of magnesium and the glass was thinner in the doors and rear window. The Carrera RS is approximately 345 pounds (155 kg) lighter than the US version Carrera 2 model. Also available were a heavier Touring variant (with sound deadening, power seats (optional), undercarriage protection and power windows) and an N/GT racing variant with a stripped, blank metal interior and a roll cage. They also came with optional lights on the visors.
A later ultra-limited production version, the Carrera 3.8 RS featuring the Turbo body and a 300 bhp (224 kW; 304 PS) 3.8 litre version of the M64 motor was sold briefly in Europe. This engine was bored out by 2 mm for a total of 3,746 cc, and was also available in a more powerful competition version called the 3.8 RSR.
The Carrera RS was not sold in the USA because Porsche Cars North America felt the car’s aggressive tuning was not suited to the American market. In 1992, 45 USA-legal cars that were very similar to the Carrera RS were imported to the USA for a proposed “Porsche Carrera Cup” racing series. This Carrera Cup series was to function as a support race for the American CART racing series just as European Carrera Cup has supported Formula One.
These 45 cars were identical to a Carrera RS other than having airbags (with required electric windows), alarm system, American lighting, American bumpers, aluminum wheels, and standard seats. The cars otherwise had the lightweight seam welded chassis, lightweight interior trim, aluminum hood, lightweight door glass, suspension, brakes, G50/10 transmission and M64/03 engine etc. of the Carrera RS. These cars were approximately 200 pounds (90 kg) lighter than a normal USA Carrera 2 model.
The plan was for Andial, the then equivalent of what is now Porsche Motorsport USA, to convert these cars to full racing specification, however, due to lack of sponsor support for the Carrera Cup series, it was cancelled before it began. The 45 cars imported to the USA for this series were then sold, quietly without any advertising so as not to compete with the new RS America, through normal dealer channels. These cars were supplied with a dash plaque which indicated that they were the “Carrera Cup USA Edition”.
In order to please devoted American 911 enthusiasts who wanted an RS model, Porsche produced the RS America. The RS America was produced as a model year 1993 and 1994 car based on the USA Carrera 2. The cars were offered in standard colors red, black and white and optional colors midnight blue metallic and polar silver. Several paint to order cars were manufactured in speed yellow. The RS America featured a distinctive “whale tail” spoiler, a partially stripped interior with flat door panels (from the European RS) and carpeting along with a luggage shelf replacing the rear seats. Cloth covered sports seats, 17 inch wheels and M030 Sports Suspension were fitted as standard. The logo “RS America” was written on the deck lid along with an “RS” logo in front of the rear wheels. Deleted to save weight were power steering, cruise control, powered side mirrors, air-conditioning, sunroof and radio, although the air-conditioning, sunroof and radio as well as a limited slip differential could be ordered as options. The RS America was listed by Porsche as weighing 2,954 pounds (1,340 kg), 77 pounds (35 kg) lighter than the weight listed for a stock Carrera 2. The standard USA Carrera 2 brakes, engine and gearbox were used.
Engine Design: Air-cooled or oil-cooled, horizontally opposed (flat), dry-sump lubrication, rear-mounted engine
Displacement: 3,600 cc (220 cu in)
Bore and Stroke: 3.94 x 3.01 in (100.0 x 76.4 mm)
Compression ratio: 11.3 : 1
Fuel/Ignition: Electronic fuel injection, DME controller, twin-spark with knock regulation
Crankshaft: Forged, 8 main bearings
Block and heads: aluminum alloy
Valve Train: Overhead cam, one per bank, double chain drive
Power: 191 kW/260 hp (SAE net) at 6,100 rpm
Torque: 312 N·m/230 lb·ft at 4,800 rpm
Based on the Porsche 964 was the 1990 racing version for the new Porsche Carrera Cup. In addition to an increase in output by 11 kW to 195 kW (265 hp) the 964 Cup had a welded roll-cage, a modified chassis set-up and the ground clearance was 55 mm lower than on the standard version. To reduce weight: the interior and the sound-proofing material was removed.
The gear ratios were modified and it had non power-steering. The vehicle did have a catalytic converter and an anti-lock braking system (ABS). In 1992, the 964 Cup had a major revision. The vehicle now had the body from the 964RS and the engine now produced 202 kW (275 hp). Another major change was that the ABS could be switched off in the event of emergency braking or whilst the car was going backwards. The vehicle now had 18 inch magnesium rims, which replaced the aluminium rims. The car was lowered by a further 20 mm.
|Also called||Porsche 911
|Assembly||Stuttgart, Baden-Württemberg, Germany|
|Designer||Benjamin Dimson (1986)|
|Body and chassis|
|Body style||2-door coupe
|Engine||3.3 L M30/69 turbo H6
3.6 L M64/01, 02, 03 H6
3.6 L M64/50 turbo H6
3.75 L M64/04 H6 (3.8 RS/RSR)
|Wheelbase||2,270 mm (89.4 in)|
|Length||4,275 mm (168.3 in)|
|Width||1,650–1,775 mm (65.0–69.9 in)|
|Height||1,310–1,320 mm (51.6–52.0 in)|
|Predecessor||Porsche 911 classic|