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Porsche
Ferdinand Porsche
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1999 6-cyl. engine
1997 Turbo Coupe
1997 911 GT 1
1993 911
1993 Turbo Cross Sect
1991 968
1989 911 Speedster
1986 959
1984 928 Study 50
1983 956 - 104
1981 924 Carrera GTS
1981 924 Carrera GTR
1981 944
1981 Aircraft engine
1979 924 Turbo
1978 928
1977 911 930 Turbo
1977 935
1977 936 Le Mans
1976 924
1973 911 G-Modell
1973 Carrera RS
1973 911 Targa
1971 917 Rosa Schwein
1971 Sixteencylinder
1971 Targa
1970 911 S Typ 915
1969 914
1969 914 (Eight cylinder)
1969 911
1967 907 Short Rear
1967 917
1967 911
1967 911 Targa
1966 First crashtests
1966 906 Carrera 6
1966 911 S
1965 912
1964 911
1964 904 Carrera GTS
1964 904
1963 911
1963 911 Motor
1963 Elva
1960 356 B
1960 356B 2000GS
1959 754
1959 356 B
1956 597 'Hunting car'
1956 356 Brake
1956 356 Engine
1953 550 Spyder

1950 356 SL
1948 First 356
1947 356 preparation
1947 Cisitalia
1922 Car Sascha
1898 Electric car
1897 Lohner-Porsche
Engine data


Porsche 911 Motor







Porsche 911 Motor (901/01)
EngineSix-cylinder horizontally opposed
Displacement, bore*stroke1991 cm³ (80 mm * 66 mm)
Crankshaft8 main bearings
Compression ratio9,0 : 1
Engine control2 * ohc (timing chains)
Mixture preparation2 * treble carburetor (Solex 40 PI), diaphragm pump
Valves2 per cylinder
CoolingBlower
IgnitionBattery and coil
Spark plug thermal value200 - 225
Fire order1 - 6 - 2 - 4 - 3 - 5
Torque174 Nm at 4200 rpm
Power96 kW (130 HP) at 6100 rpm
Max. speed6500 rpm
ManufactureSince 1963

To say it right away: the shown engine is really one of the first, those on the two other pictures are newer ones. One should take a closer look at the 1963 engine to be able to appreciate its technical features particularly in the light of that time.

In 1959, who did honestly think of applying eight crankshaft bearings to a six-cylinder boxer engine or to completely suck off the engine oil and supply it to a separate container? On the other hand, Porsche has always concentrated on oil since it is the most important regulation possibility for temperature household in an air-cooled engine.

Also the use of magnesium for the crankcase must be mentioned, even though this practise was already used for the Beetle. The weight problems of a vehicle with such a powerhouse in the rear are rather substantial, particularly since suspension is still far away from today`s standards.

The specific features of the chosen materials will always be with this engine. The first cylinders are made from cast iron. Then for 911 S only aluminium-coated cast iron sockets are applied, a procedure which is partially used even today. Lateron they use certain procedures for coating and corrosion, for the results see picture 3.

Did you know that at this time there is another option, a six-cylinder boxer engine with two camshafts below, one above and one below the crankshaft? Thank God it was too noisy and you saw the other disadvantages. For if the boxer engine no longer needs to be modeled on that of the Beetle, the overhead camshafts have in addition to the known the extra benefits that the engine and so the center of gravity may lie deeper.

Certainly not every idea is to improve the various Porsche products from Ferry Porsche himself, but it is his credit, that he has successfully prevented some wild growth and that as long as he has the decisive influence the course, seen today, be made whole right, perhaps not without involvement of his sister in Salzburg. 12/09






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