Porsche 928 (1977-1995)

Porsche 928 original
© Porsche
MY
1978
MY
1979
MY
1980
A
MY
1981
B
MY
1982
C
MY
1983
D
MY
1984
E
MY
1985
F
MY
1986
G
MY
1987
H
MY
1988
J
MY
1989
K
MY
1990
L
MY
1991
M
MY
1992
N
MY
1993
P
MY
1994
R
MY
1995
S
928 America Japan 4.5 169 kW (164 kW SAE) 170 kW (165 kW SAE) 928 S America Japan 4.7 178 kW 5.0 215 kW
928 Euro 4.5 177 kW 928 S Australia 4.7 202 kW Sweden Switzerland
928 S Euro 4.7 221 kW 928 S Euro 4.7 228 kW
928 S Australia 5.0 212 kW S4 Australia 5.0 221 kW
S4 5.0 235 kW
S4 CS 5.0 235 kW
GT 5.0 243 kW GTS 5.4 257 kW
K-Jetronic
L-Jetronic

In 1971, the design work started on the future 911 H-model (that would come a few years after the 911 G-model which was to be launched in 1973). The first plan was to create a wedge-shaped slantnose coupé with rear-mounted five to six litre V8. By 1972 it was decided that the engine will be at the front and the project was called 928.

The then futuristic and later iconic looks of the 928 were created under the supervision of head of design Anatole Lapine. To streamline the car, it got flush-mounted bumpers and special headlights. The headlights were positioned high for better night visibility, but were lowered into the body during the day. The 180-degree reversed pop-up headlamp construction allowed to wash the lenses even when the lamps were stowed away into their sockets.

Thanks to front engine and rear transmission the car was ideally balanced. In addition to the aluminium V8, the engine lid, front fenders and doors were made of aluminium. Standard equipment of the luxurious grand tourer included power windows, air conditioning, central locking, steering wheel height adjustment and an instrument cluster that moved together with it. The car even had sun visors for the rear occupants!

1977 IAA Frankfurt Motor Show

The 928 was launched in 1977 as a 1978 model. It was so innovative that it was voted as the Car Of The Year 1978.

1978 Le Mans start: European Car Of The Year, the Porsche 928, is leading the pack. While the 928 did not see much racing action, it served as a Le Mans pace car from 1977 to 1980. © Porsche

In 1982, a 24 hour world speed record for series production cars was set with the 4.7-litre 928 S. Despite the around 30 refuelling stops, the achieved average speed was an astonishing 156 mph/251 km/h.

1982 Nardo, Porsche 928 S record run
1982, Nardo circuit in Italy, the team of drivers Gerhard Plattner, Peter Lovett and Peter Zbinden covered 3749 miles/6033 km in 24 hours© Porsche

One of the most important improvements with the 928 were the ABS brakes that became optionally available from model year 1984 and standard in 1986. For the 1987 model year, the 928 received new looks and the car was called 928 S4. The reason for the naming was simple - before the S4, the 928 engine had already evolved to S, S2 and S3. The a bit sportier versions of the 928 S4 were the ClubSport and the 928 GT.

928 S4© Porsche
1987 IMSA GT events saw a 928 S4 Rapid Response Vehicle prepared by Fabcar. This car was originally red and on August 7, 1986, racer and Director of Porsche Motorsports of North America, Al Holbert had done 171 mph / 275 km/h on the Utah’s Bonneville Salt Flats. VIN of this car is supposedly WP0JB092ZGS860062 which tells us that it is one of the very first S4's and a 1986 model year car, so built probably in summer 1985. The VINs of normal production cars started with 0061 (earlier numbers were reserved for ptototypes). This car doesn't exist anymore in the form it is pictured here, in 2002 it was converted to a race car.© Porsche

The final change in the appearance of the 928 came for 1992 model year, when the 5.4-litre GTS replaced the S4 and GT.

Porsche 928 GTS
The GTS got aerodynamic mirrors, 17" wheels with 255 mm wide rear tyres, wider rear fenders and a reflective rear panel with PORSCHE-lettering. Nice!© James Herne

The 928 GTS beat the 24 hour world speed record that the 928 S had hold for 11 years. The new average speed record set in 1993 was 165 mph/265 km/h. This is average speed over the 24 hour period that included the frequent pit stops for refuelling and also driver changes.

1993 Nardo circuit, Porsche 928 GTS
1993, Nardo high-speed circuit, 928 GTS © James Herne

Engine codes

Code Engine Power Model Model years Remarks
M28.01 4.5 16V 177 kW 928 Euro, manual 5-speed 78 79
M28.02 4.5 16V 177 kW 928 Euro, automatic 3-speed 78 79
M28.03 4.5 16V 169 kW (164 kW SAE) 928 America Japan, manual 5-speed 78 79
M28.04 4.5 16V 169 kW (164 kW SAE) 928 America Japan, automatic 3-speed 78 79
M28.09 4.5 16V 177 kW 928 Euro, manual 5-speed 80 81 82
M28.10 4.5 16V 177 kW 928 Euro, automatic 3-speed 80 81 82
M28.11 4.7 16V 221 kW 928 S Euro, manual 5-speed 80 81 82 83
M28.12 4.7 16V 221 kW 928 S Euro, automatic 3-speed 80 81 82 83
M28.13 4.5 16V 170 kW (165 kW SAE) 928 America Japan, manual 5-speed 80
M28.14 4.5 16V 170 kW (165 kW SAE) 928 America Japan, automatic 3-speed 80
M28.15 4.5 16V 170 kW (165 kW SAE) 928 America, manual 5-speed 81 82
M28.16 4.5 16V 170 kW (165 kW SAE) 928 America, automatic 3-speed 81 82
M28.17 4.5 16V 170 kW (165 kW SAE) 928 Japan, manual 5-speed 81 82
M28.18 4.5 16V 170 kW (165 kW SAE) 928 Japan, automatic 3-speed 81 82
M28.19 4.7 16V 178 kW 928 S America, manual 5-speed 83 84
M28.20 4.7 16V 178 kW 928 S America Japan, automatic 4-speed 83 84
M28.21 4.7 16V 228 kW 928 S Euro, manual 5-speed 84 85 86
M28.22 4.7 16V 228 kW
202 kW
202 kW
928 S Euro, automatic 4-speed
928 S Australia, automatic 4-speed
928 S Sweden Switzerland, automatic 4-speed
84 85 86
85
86
M28.41 5.0 32V 235 kW
221 kW
235 kW
928 S4, manual 5-speed
928 S4 Australia, manual 5-speed
928 S4 Club Sport, manual 5-speed
87 88 89 90 91
87 88
88 89
M28.42 5.0 32V 235 kW
221 kW
928 S4, automatic 4-speed
928 S4 Australia, automatic 4-speed
87 88 89 90 91
87 88
M28.43 5.0 32V 215 kW 928 S (S3) America , manual 5-speed 85 86 S3: 32V engine in a pre-S4 body
M28.44 5.0 32V 215 kW 928 S (S3) America Japan, automatic 4-speed 85 86
M28.45 5.0 32V 212 kW 928 S (S3) Australia, manual 5-speed 86
M28.46 5.0 32V 212 kW 928 S (S3) Australia, automatic 4-speed 86
M28.47 5.0 32V 243 kW 928 GT, manual 5-speed 89 90 91
M28.49 5.4 32V 257 kW 928 GTS, manual 5-speed 92 93 94 95
M28.50 5.4 32V 257 kW 928 GTS, automatic 4-speed 92 93 94 95

Transmission codes

Code Transmission Model Model years
A22.01 3-speed automatic 928 Euro
928 all markets
78 79
80 81 82
A22.02 3-speed automatic 928 America Japan 78 79
A22.04 3-speed automatic 928 S Euro 80 81 82 83
A28.01 4-speed automatic 928 S America Japan 83 84
A28.02 4-speed automatic 928 S Euro 84
A28.03 4-speed automatic 928 S Euro 84
A28.04 4-speed automatic 928 S Euro CAT, America, Japan 85
A28.05 4-speed automatic 928 S Euro (14:33) 85
A28.06 4-speed automatic 928 S Euro (13:33 shorter gear ratio M251) 85
A28.07 4-speed automatic 928 S America Japan 86
A28.08 4-speed automatic 928 S Euro (14:33) 86
A28.09 4-speed automatic 928 S Sweden Switzerland Australia (13:33 shorter gear ratio M251) 86
A28.11 4-speed automatic 928 S Euro CAT 86 87
A28.12 4-speed automatic 928 S4 America Japan 87 88
A28.14 4-speed automatic 928 S4 Euro 87 88
A28.16 4-speed automatic 928 S4 all markets 89 90 91
A28.18 4-speed automatic 928 GTS 92 93 94 95
G28.03 5-speed manual 928 all markets 78 79 80
G28.05 5-speed manual 928, 928 S
928 S
80 81
82
G28.07 5-speed manual 928 S Euro 83 84
G28.08 5-speed manual 928 S America 83 84
G28.09 5-speed manual 928 all markets 82
G28.10 5-speed manual 928 S Euro
928 S Euro CAT
85 86
86
G28.11 5-speed manual 928 S America, Euro CAT
928 S America
85
86
G28.12 5-speed manual 928 S4 Euro
928 S4 all markets
87 88
89
G28.13 5-speed manual 928 S4 America 87 88
G28.55 5-speed manual 928 S4 M637 Club Sport
928 GT
88 89
89 90 91
G28.57 5-speed manual 928 GTS 92 93 94 95

The 928 was a unique model in a sense that Porsche made so many concept cars on it or used its engine elsewhere. For example, in 1983 a 928 with the full aluminium body was created, in 1984 an extended wheelbase body with long roof was made (such a full size clay model was made already in the seventies). In 1985, Porsche installed the 928 S3 engine in a Mercedes G-wagen off-road rally car and in 1986, S4 engines were sold to marine industry. Porsche experimentally even created bi-turbo racing boat engines called 928 S4 Offshore. In 1987 4-door 928 was made in two examples and a S4 CS was experimentally equipped with PDK transmission (a PDK was considered for 928 as early as 1979). In 1988 a one-off 928 Cabriolet was built.

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Article © James Herne / Stuttcars.com


PDF

1978 model range USA: 911 SC, 911 Turbo, 924, 928

1977 · English

911: "More than 130.000 have been built...”
“Porsche engineers its cars to stay on the road, where they belong”

924: “Only its owner needs to know how affordable it is”
“Body details were carefully studied to reduce wind noise and keep the windows and taillights clear of rain and road dirt”

928: “It has self-adjusting hydraulic valve lifters which, like the breakerless transistor ignition and CIS fuel-injection system, needs no periodic maintenance”
“Entering turns, the rear-wheel alignment self-adjusts to decelerating forces to maintain ideal tracking”
“Possible problems are signaled by an On-board Warning System...”

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928 USA technical data, 1979 model year

1979 · English

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928 USA technical data, 1981 model year

1981 · English

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Artwork

928

1978

  • Vector drawing 594 mm x 420 mm (A2), B/W
  • Format: PDF
  • Author: Margus Holland

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Search for a 928 or continue to 928 Wizeman marine engine

Anniversaries
Apr, 04 – 44th birthday of the 936 (1976)
Apr, 05 – 55th birthday of the 912 (1965)
Apr, 07 – 52nd birthday of the 908 (1968)
Apr, 09 – 53rd birthday of the 907 (1967)
Apr, 17 – 83rd birthday of Ferdinand Piëch (1937)