The Brennabor Juwel 8 is an eight-cylinder automobile introduced the Brennabor company in 1930 to complement their then recently introduced Juwel 6 model.
The Juwel 8 was powered by a newly developed 8-cylinder side-valve engine of 3.4 litres, mounted ahead of the driver and delivering 60 hp at 3,200 rpm. Power was delivered to the rear wheels through a single plate dry clutch and a three-speed gear box controlled using a centrally positioned floor-mounted gear stick.
The car sat on a U-profile pressed steel chassis with rigid axles and semi-elliptical leaf springing. It was offered as a four-door four-seater sedan/saloon or a four-door “Pullman” sedan/saloon with six seats. The mechanically linked foot brake operated directly on all four wheels, while the handbrake operated on the rear wheels.
The last Juwel 8 appears to have been produced in 1932, by when approximately 100 had been built.
Technical data
| Type | Juwel 8 (14/60 PS) (14 tax horsepower / 60 German hp) |
| Production years | 1930 - 1932 |
| Bodies | 4-door 4-seat saloon/sedan 4-door 6-seat “Pullman” saloon/sedan |
| Motor | 8 cyl. In-line 4-stroke |
| Ventile | side (SV) |
| Bore x Stroke | 74 mm × 100 mm (2.913 in × 3.937 in) |
| Cylinder capacity | 3,417 cc (208.5 cu in) |
| Power (German hp or PS) | 60 PS (44 kW) |
| Power (kW) | 44 kW (59 hp) |
| at rpm | 3,200 |
| Compression ratio | 5.4 : 1 |
| Fuel consumption | 15 L/100 km (19 mpg‑imp; 16 mpg‑US) |
| Transmission | 3-speed manual with central floor-mounted lever |
| Top speed | 100 km/h (62 mph) |
| Unladen weight | ca. 1,500 kg (3,300 lb) |
| Fully laden weight | ca. 2,000 kg (4,400 lb) |
| Electrical system | 2 x 6 Volt |
| Length | 4,300 mm (169.29 in) |
| Width | 1,630 mm (64.17 in) |
| Height | 1,800 mm (70.87 in) |
| Wheelbase | 3,050 mm (120.08 in) |
| Track front / back | 1,340 mm (52.76 in) / 1,340 mm (52.76 in) |
| Tires | 5.50-18" |
Sources
• Oswald, Werner: Deutsche Autos 1920–1945, Motorbuch Verlag Stuttgart, 10. Auflage (1996), ISBN 3-87943-519-7