Porsche 914

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Porsche 914
MHV VW-Porsche 914-6.jpg
Overview
Manufacturer Porsche (Type 914/6)
Karmann (Type 914/4)
Also called VW-Porsche 914
Production 1969–1976
118,978 produced[1]
914/4: 115,646
914/6: 3,332
Assembly Stuttgart-Zuffenhausen, West Germany
Osnabrück, West Germany (VW-Porsche)
Body and chassis
Class Sports car
Body style Targa
Coupe
Layout Rear mid-engine, rear-wheel drive
Related Porsche 914-6 GT
Powertrain
Engine 1.7 L H4
1.8 L H4
2.0 L H4
2.0 L H6
Dimensions
Wheelbase 2,450 mm (96.5 in)
Length 3,985 mm (156.9 in)
Width 1,650 mm (65.0 in)
Height 1,230 mm (48.4 in)
Curb weight 940 kg (2,070 lb)−995 kg (2,194 lb)
Chronology
Predecessor Porsche 912
Volkswagen Karmann Ghia
Successor Porsche 924

The Porsche 914 or VW-Porsche 914 was a mid-engined, targa-topped two-seat roadster designed, manufactured and marketed collaboratively by Volkswagen and Porsche from 1969 to 1976.

History[edit]

Development[edit]

By the late 1960s, both Volkswagen and Porsche were in need of new models; Porsche was looking for a replacement for their entry-level 912, and Volkswagen wanted a new range-topping sports coupe to replace the Karmann Ghia. At the time, the majority of Volkswagen's developmental work was handled by Porsche, part of a setup that dated back to Porsche's founding; Volkswagen needed to contract out one last project to Porsche to fulfill the contract, and decided to make this that project. Ferdinand Piëch, who was in charge of research and development at Porsche, was put in charge of the 914 project.

Porsche 914 and the car it replaced at the top of VW's line, the Type 34 Karmann Ghia

Originally intending to sell the vehicle with a flat four-cylinder engine as a Volkswagen and with a flat six-cylinder engine as a Porsche, Porsche decided during development that having Volkswagen and Porsche models sharing the same body would be risky for business in the American market, and convinced Volkswagen to allow them to sell both versions as Porsches in North America.

On March 1, 1968, the first 914 prototype was presented. However, development became complicated after the death of Volkswagen's chairman, Heinz Nordhoff, on April 12, 1968. His successor, Kurt Lotz, was not connected with the Porsche dynasty and the verbal agreement between Volkswagen and Porsche fell apart.

In Lotz's opinion, Volkswagen had all rights to the model, and no incentive to share it with Porsche if they would not share in tooling expenses. With this decision, the price and marketing concept for the 914 had failed before series production had begun. As a result, the price of the chassis went up considerably, and the 914/6 ended up costing only a bit less than the 911T, Porsche's next lowest price car. The 914/6 sold quite poorly while the much less expensive 914/4 became Porsche's top seller during its model run, outselling the Porsche 911 by a wide margin with over 118,000 units sold worldwide.

The unique rear of the Porsche 914 shown with an after-market Porsche reflector.

Design evolution[edit]

Volkswagen versions originally featured an 80 PS (59 kW) fuel-injected 1.7 L flat-4 engine based on the Volkswagen air-cooled engine. Porsche's 914/6 variant featured a carbureted 110 PS (81 kW) 2.0 L flat-6 engine from the 1969 911T, placed amidships in front of a version of the 1969 911's "901" gearbox configured for a mid-engine car. Karmann manufactured the rolling chassis at their plant, completing Volkswagen production in-house or delivering versions to Porsche for their final assembly.

914/6 models used lower gear ratios and high brake gearing in order to try to overcome the greater weight of the 6 cylinder engine along with higher power output. Suspension, brakes, and handling were otherwise the same. A Volkswagen-Porsche joint venture, Volkswagen of America, handled export to the U.S., where both versions were badged and sold as Porsches, except in California, where they were sold in Volkswagen dealerships. The four-cylinder cars were sold as Volkswagen-Porsches at European Volkswagen dealerships.

Slow sales and rising costs prompted Porsche to discontinue the 914/6 variant in 1972 after producing 3,351 of them; its place in the lineup was filled by a variant powered by a new 100 PS (74 kW) 2.0 L, fuel-injected version of Volkswagen's Type 4 engine in 1973. For 1974, the 1.7 L engine was replaced by a 85 PS (63 kW) 1.8 L, and the new Bosch L-Jetronic fuel injection system was added to American units to help with emissions control. 914 production ended in 1976. The 2.0 L flat-4 engine continued to be used in the 912E, which provided an entry-level model until the 924 was introduced.

The 914 was Motor Trend's Import Car of the Year for 1970.[2] A 914/6 GT piloted by Frenchmen Claude Ballot-Lena and Guy Chasseuil won the GTS class and finished sixth overall at the 1970 24 Hours of Le Mans.[3] Brian Redman used the 914/6 to scout the course in practice runs of the 1970 Targa Florio circuit.

Technical specifications of the standard versions[edit]

The Porsche 914 was produced from 1969 to 1976 the following models:

Porsche 914: 914/4 1.7 (Targa) 914/6 (Targa) 914 1.8 (Targa) 914 2.0 (Targa)
Engine: Flat-four engine (Fuel injection) Flat-six engine (Carburetor) Flat-four engine (Fuel Injection) Flat-four engine (Fuel injection)
Displacement: 1679 cc 1991 cc 1795 cc 1971 cc
Bore x stroke: 90 × 66 mm 80 × 66 mm 93 × 66 mm 94 × 71 mm
Performance at 1/min: 59 kW (80 PS) @ 4900 81 kW (110 PS) @ 5800 63 kW (85 PS) @ 5000 74 kW (100 PS) @ 5000
Max torque at 1/min: 136 Nm @ 2700 160 Nm @ 4200 138 Nm @ 3400 160 Nm @ 3500
Compression ratio: 8,2: 1 8,6: 1 8,6: 1 8,0: 1
Valve system: OHV, a central camshaft OHC, two camshafts (one per cylinder bank) OHV, a central Camshaft
Cooling: Air cooling (fan)
Transmission: 5-speed manual gearbox, rear wheel drive
Front suspension: Independent suspension on transverse links and damper struts
Rear suspension: Independent suspension trailing arms
Front suspension: torsion bars located along
Rear suspension: Coil springs
Body: Self-supporting steel body
Track width front / rear: 1337/1374 mm 1361/1382 mm
Wheelbase : 2450 mm
Tires: 155 SR 15 165 HR 15 oder 185 HR 14 165 SR 15 165 HR 15
Dimensions L x W x H: 3985 x 1650 x 1220 mm 3985 x 1650 x 1220 mm 3985 x 1650 x 1230 mm
Curb weight : 940 kg* 985 kg* 950 kg
Maximum speed: 186,5 km/h* 207 km/h* 178 km/h 190 km/h
Acceleration 0 – 100 km / h: 13,3 s 8,7 s* 12,0 s 10,5 s

* Measurement of "auto motor und sport" (reviews in issue 22/1969 8/1970)

Chart of 914 development[edit]


Porsche 914 road vehicle history of 1969 to 1976
Model Power 1960s 1970s
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9
914
914/4 59 kW/80 PS
914/6 81 kW/110 PS
914 1.7 59 kW/80 PS
914 1.8 56 kW/76 PS (USA); 63 kW/85 PS (RoW)
914 2.0 70 kW/95 PS (USA); 74 kW/100 PS (RoW)
914 2.0 (only in US) 65 kW/88 PS

Prototypes[edit]

Two prototype 914s, dubbed 914/8, were built during 1969. The orange 914/8 was the first constructed, at the instigation of Ferdinand Piëch (then head of the Racing Dept), to prove the concept. Powered by the full-blown, 310 hp (222 kW) 908 [flat-8] racing engine, it was based on a surplus 914 handbuilt development prototype bodyshell (chassis no. 914111), hence the many differences from the standard vehicle (e.g., the quad headlights). The second, silver, road-registered car, powered by a carburetted and detuned 908 race engine making 260 hp (194 kW) was then prepared as a gift to Ferry Porsche on his 60th birthday. Also based on a spare prototype shell (chassis no. 914006), it was much closer to the standard car in detail. By all accounts Ferry didn't like the car very much and it sits in the Porsche Museum. Neither car saw a racetrack except for the purposes of testing. The 914/8 was not considered for production as a regular model. Another factory prototype, a 914/6 (chassis no. 914114) surfaced in the US in 2001. Together with a surviving prototype Sportomatic 914/6 (chassis no. 914120), reputedly in Southern Germany, they form a unique and fascinating piece of Porsche history.

Porsche 916[edit]

Planned for the 1972 model year, the Porsche 916 program was cancelled after eleven prototypes with aerodynamic front and rear bumpers and either the 2.4 engine from the 911S, or the 2.7 from the Carrera. They were also to have a fixed steel roof, wider wheels, double grilled engine lid, and flared fenders as styled from the 914-6 GT cars.[4] Ventilated disc brakes were fitted to all four wheels, and also a "mid-engined" version of the then-new 915 transmission, giving a conventional shift pattern with 1 to 4 in an H and fifth out on a limb. One 916 was built to US specs and on delivery to the USA was fitted with air conditioning by the dealer (Brumos).

Technical information[edit]

Chassis numbers[edit]

Porsche 914 chassis numbers from 1970 to 1976
Year 914/4 914/6 916
1970 4702900001 – 4702913312 9140430001 – 9140432668
1971 4712900001 – 4712916231 9141430001 – 9141430443 9141430195
1972 4722900001 – 4722921580 9142430001 – 9142430260 9142330011 – 9142330020
1973 4732900001 – 4732927660
1974 4742900001 – 4742921370
1975 4752900001 – 4752911368
1976 4762900001 – 4762904100

Model year changes[edit]

Over the six model years, Porsche made a number of changes to the 914. Some of these changes were cosmetic and others were in response to changing crash protection standards. From 1970 to 1974, the 914 was offered with chrome or painted bumpers. In early 1970, rear bumpers were produced with a straight crease on either side of the license plate indent. Between 1970 and 1972, both front and rear bumpers were smooth without bumper guards. In 1973, bumper guards were added to the front of the car. In 1974, guards were also added to the rear bumper. In 1975 and 1976, the chrome or painted bumpers were replaced with heavy, rubber-covered units.

The headlight surrounds were white from the first 914s to mid-production of 73 and subsequently black. Cars produced up to early 1972 had a fixed passenger seat and a removable passenger footrest. Later cars featured a movable passenger seat. Other interior differences included changing vinyl designs, gauge appearance, and air vent configurations in the dash.

The most significant performance upgrade during the vehicle's lifespan was the introduction of anti roll bars, significantly improving the handling, and a change from the "tail shifter" to the "side shifter" gearbox - improving the otherwise vague long linkage.

Whilst not being as "collectable" as the six cylinder car, the final 2.0L four cylinder cars (in European spec at least) were more than a match in performance for the "six" with similar power, lighter weight, and improvements in many areas where the early cars are weak.

Limited editions[edit]

"Bumblebee" (black) 914 LE

In 1974, Porsche produced a series of Limited Edition cars for the North American market to commemorate Porsche's victories in the Can Am racing series, and were equipped with unique color schemes and came standard with otherwise optional equipment. The factory is said to have produced about 1,000 of these vehicles, about 50% Bumblebee and 50% Creamsicle. Variants of this series were manufactured and distributed in very limited numbers to European markets and Japan.

The Creamsicle: With a cream color exterior (paint code U2V9), these cars sported Phoenix red trim, including color matched lower valences, bumpers and Mahle wheels. This light ivory color scheme concept carried over from the 1973 911 Carrera RS series.

The Bumblebee: Featuring a black exterior (paint code L041), these cars sported Sunflower yellow trim (paint code L13K). Black body paint color was always an additional cost special option on standard 914 Porsche cars, but was included as a standard component on the black 914 LE cars. All but one photo of the 914 Porsche Can Am prototype cars are Bumblebee cars. The black-based 914 LE color scheme is unique to the 914 LE cars and has no precedent with the Can Am race cars or the 1973 911 Carrera RS series cars. The majority of 914 Limited Editions seem to be Bumblebees.[5]

All 914 LE cars featured a specially designed front spoiler and negative side stripes. Additionally, all Limited Editions were equipped with front and rear anti sway bars, dual horns, leather covered steering wheel, driving lights, black painted rear roll bar trim, Targa bar vinyl delete, and a center console with an oil temperature gauge, clock, and voltmeter.

See also[edit]

References[edit]

  1. ^ Oswald, Werner (2001). Deutsche Autos 1945-1990, vol.4. Stuttgart: Motorbuch Verlag. p. 362. ISBN 3-613-02131-5. 
  2. ^ "1970 Porsche 914 - Motor Trend Import Car of the Year - Motor Trend Classic". Motor Trend. 2007. Retrieved 2007-03-25. 
  3. ^ "Le Mans 24 Hours 1970 - Final Standings". 2007. Retrieved 2007-03-25. 
  4. ^ "Porsche 916". Volkswagen Porsche 914 club Westphalia. 2007. Archived from the original on 2006-10-06. Retrieved 2007-03-25. 
  5. ^ Bowlsby, Jeff. "The 914 Porsche Limited Edition". The 914 Can Am Cars. 

External links[edit]