Goliath GP 700
| Goliath | |
|---|---|
 Goliath GP 700 as a sedan
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| GP 700 | |
| Sales designation: | GP 700 |
| Production period: | 1950-1957 |
| Class : | Lower middle class |
| Body versions : | Sedan , convertible sedan , station wagon , coupe , convertible |
| Engines: |
Gasoline engines : 0.7-0.9 liters (19-29 kW) |
| Length: | 4050 mm |
| Width: | 1630 mm |
| Height: | 1470 mm |
| Wheelbase : | 2300 mm |
| Empty weight : | 1010 kg |
| Previous model | none |
| successor | Goliath GP 1100 |
The Goliath GP 700 is a lower middle class car from the Borgward group owned automobile manufacturer Goliath , which was manufactured in Hastedt from 1950 to 1957 . Along with the Gutbrod Superior, it was the first automobile to be available with gasoline direct injection . The suggestion for the development of gasoline direct injection at Goliath came from a pre-war DKW, which was equipped with one on a trial basis and was driven by Goliath boss August Momberger . In 1955 the GP 900 model was also offered, which differs from the GP 700 only in that it has a larger engine. It is therefore dealt with in this article.
history
The development of the car began in 1948. Since the other German automobile manufacturers had withdrawn from the small car business and the only competitor in the field of two-stroke engine small cars, Auto Union , was in the Soviet-occupied zone, no competitors initially seemed to be expected on the German market . The two-stroke engine with a displacement of 688 cm 3 was developed from 1949 under the direction of Hans Scherenberg . The sedan was presented in March 1950. The market situation changed when the biggest competitor, Auto Union, continued to build the master class in the Düsseldorf plant from August 1950 , which was located in the same market segment. Production of the Goliath station wagon began in December 1951 and was officially presented in January 1952. Initially, it was available with a payload of 260 kg. Reinforced tires were supplied on request, increasing the payload to 460 kg; these tires were standard equipment from 1954. The Goliath Sport Coupé and a Cabriolet followed in 1951, but were only built for a short time.
The first version of the coupé with a Rudy body on the chassis of the GP 700 was built twice, after which there were 25 cars with a Rometsch body. Production ended in 1953; the planned 50 pieces were not achieved. The Goliath Sport cost 9700 DM and was therefore 500 DM cheaper than the more powerful Porsche 356. The Goliath Coupé was probably the first mass-produced car to have direct fuel injection. With a displacement of 856 cm³, the last two-cylinder two-stroke engine installed produced around 35 hp; the maximum speed of the approximately 830 kg heavy car was 135 km / h. The 688 cc engine from the sedan had proven too weak for a sports car.
For the 1953 model year, the radiator grille had six instead of five slots; from 1956, however, there were again five. From 1953, the sedan had an enlarged rear window and redesigned narrow indicators were placed on the front fenders. The indicators of the first few years were placed under the headlights.
At the IAA 1955 in September, the GP 900 was presented as a new model, which is identical to the GP 700, but has an engine enlarged to 886 cm 3 . Outwardly, it differed from the GP 700 only in a decorative strip on the side. In 1956 the vehicles were given a hood ornament designed as a "rapid" G by the graphic artist Wilhelm Heidmann. In 1957, production of both models was discontinued, 11,343 of the vehicles produced were station wagons. In total, Goliath built 36,496 GP 700 and 8142 GP 900.
technology
The GP 700 is a car with a central tubular frame, a non-self-supporting all-steel body, a transverse front engine and front-wheel drive. It has two doors.
The central tubular frame has a rear rigid axle suspended from two longitudinal leaf springs, the front wheels are suspended from two transverse leaf springs. Various wheel-tire combinations with tire sizes of 3.25–16, 4.00–15 ″, 5.00–16 ″ for the GP 700, 5.60–13 ″ for the GP 900 and 16 were produced over the entire production period ″ Used for the coupe. Hydraulically operated drum brakes from Ate are installed all around , the steering is a rack and pinion steering. The power is transmitted from the engine via a single-disc dry clutch to a manually shifted four-speed gearbox that was fully synchronized from 1952 and from there via cardan shafts to the front wheels.
The two-cylinder two-stroke in-line engine with a displacement of 688 cm 3, designed by Hans Scherenberg, was also used in the Gutbrod Superior in a slightly different form. It was available with a carburetor and gasoline direct injection from Bosch. The design of the injection system of the GP 700 was derived from the injection systems of contemporary diesel engines. Although the version with direct injection is more powerful and significantly more economical in terms of fuel consumption, the direct injection engine, which is expensive to buy, could not establish itself in the 1950s.
The injection engine had fresh oil lubrication instead of the mixture lubrication common in two-stroke engines . Via a piston pump driven by the crankshaft, the oil was fed, depending on the speed, to the injection pump for lubrication and then to the intake port. Then it was atomized by the intake air and, as an oil mist, lubricated the crankshaft and connecting rod bearings as well as the cylinder liners and the piston pin bearings.
Technical specifications
| Parameters | GP 700 | GP 900 | ||
|---|---|---|---|---|
| Years of construction | 1950-1957 | 1955-1957 | ||
| Dimensions | 1010 kg | |||
| Maximum permissible total mass | 1470 kg | |||
| length | 4050 mm | |||
| width | 1630 mm | |||
| height | 1470 mm | |||
| wheelbase | 2300 mm | |||
| Gauge | 1300/1250 mm | |||
| tires | 5.6-13 " | |||
| Engine type | Two-cylinder two-stroke engine, Otto | |||
| Mixture preparation | Carburetor | Direct petrol injection | Carburetor | Direct petrol injection |
| Displacement | 688 cm 3 | 886 cm 3 | ||
| Bore × stroke | 74 mm × 80 mm | 84 mm × 80 mm | ||
| compression | 6.8 | 7.7 | 7.0 | 7.45 |
| Nominal power (DIN 70020) | 25.5 hp (19 kW) at 4000 min -1 | 29 hp (21.5 kW) at 4000 min -1 | 38 hp (28 kW) at 4250 min -1 | 40 hp (29 kW) at 4000 min -1 |
| Max. Torque (DIN 70020) | 53 Nm at 2000 min -1 | 59 Nm at 2500 min -1 | 73 Nm at 3000 min -1 | 74 Nm at 2750 min -1 |
| Top speed | 100 km / h | 108 km / h | 115 km / h | 120 km / h |
| Fuel consumption | 9 l / 100 km | 7.5 l / 100 km | 10.5 l / 100 km | 8 l / 100 km |
| source | ||||
Web links
Individual evidence
- ↑ a b c d e Peter short: Borgward typology . Delius Klasing Verlag, Bielefeld 2009, ISBN 978-3-7688-2599-3 .
- ↑ a b c d e Peter short: Delivery vans and trucks from Bremen: Commercial vehicles since 1945 from Borgward, Hanomag and Mercedes. 2005, ISBN 3-927485-46-2 , pp. 12f.
- ↑ Richard van Basshuysen (Ed.): Otto engine with direct injection and direct injection: Otto fuels, natural gas, methane, hydrogen. 4th edition. Springer, Wiesbaden, 2017, ISBN 978-3-658-12215-7 , p. 415.
- ^ A b Werner Oswald : German Cars 1945-1975. 4th edition. Motorbuch-Verlag, Stuttgart, 1979, ISBN 3-87943-391-7 , p. 416f.
- ↑ Richard van Basshuysen (Ed.): Otto engine with direct injection and direct injection: Otto fuels, natural gas, methane, hydrogen. 4th edition. Springer, Wiesbaden, 2017, ISBN 978-3-658-12215-7 , pp. 19f.