1925 Bugatti Type 39
Above Images ©IMAGE CREDITS - Supercars.net @ Schlumpf Car Museum
To comply with the 1.5 litre Grand Prix regulations, Bugatti built the Type 39 which was similar in specification to the larger Type 35C. Only the engine was modified to have a shorter stroke that was reduced by 22mm.
The Type 39 was also available with a supercharger and known as the Type 39A. Some engines were produced with an smaller bore to produce 1092cc.
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In Detail
| submitted by | Richard Owen |
| type | Production Car |
| built at | France |
| production | 10 |
| engine | Inline-8 |
| position | Front, Longitudinal |
| aspiration | Natural |
| ignition | Magneto |
| block material | Cast Iron |
| valvetrain | SOHC, 3 Valves per Cyl |
| fuel feed | Zenith Carburettor |
| displacement | 1496 cc / 91.29 in³ |
| bore | 52 mm / 2.0 in |
| stroke | 88 mm / 3.5 in |
| power | 67.1 kw / 90 bhp @ 5500 rpm |
| specific output | 60.16 bhp per litre |
| bhp/weight | 120.0 bhp per tonne |
| torque | 81.3 nm / 60 ft lbs @ 2000 rpm |
| body / frame | Aluminum Body over Steel Frame |
| driven wheels | RWD |
| wheel type | Cast Aluminum w/Integral Brake Drum |
| front tires | 28 x 4.95 |
| rear tires | 28 x 4.95 |
| front brakes | Drums |
| rear brakes | Drums |
| front wheels | F 48.3 x 12.7 cm / 19 x 5 in |
| rear wheels | R 48.3 x 12.7 cm / 19 x 5 in |
| steering | Worm & Wheel |
| f suspension | Solid Axle w/Semi-Elliptic Leaf Springs, Friction Dampers |
| r suspension | Live Axle w/Reverse Quater-Elliptic Leaf Springs, Friction Dampers |
| weight | 750 kg / 1654 lbs |
| wheelbase | 2400 mm / 94.5 in |
| front track | 1200 mm / 47.2 in |
| rear track | 1200 mm / 47.2 in |
| transmission | 4-Speed Manual |
| final drive | 4.15:1 |
| top speed | ~185.03 kph / 115 mph |
| 0 - 100 mph | ~9.0 seconds |
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