1991 Mazda 787B
In 1991 Mazda became the first Japanese manufacturer to win the 24 hours of Lemans with their 787B. The car was powered by a quad-rotary engine which makes the 787 the first rotary engine car to win Lemans. In its victory the Mazda 787B completed 4923.200 km (3,059.79 miles) at an average speed of 205.133 km/h (127.49 mph). The drivers were Bertrand Gachot, Johnny Herbert and Volker Weidler. The engine is normally rated as 2622cc but the FIA rated the car as a 4708cc by dimension of having two power cycles per rotation. Normally aspired, the engine produced around 700 HP!
In Detail
| submitted by | Richard Owen |
| engine | R 26B Quad-Rotary |
| position | Mid Engine |
| displacement | 2622 cc / 160.0 in³ |
| power | 522.0 kw / 700.0 bhp @ 9000 rpm |
| specific output | 266.97 bhp per litre |
| bhp/weight | bhp per tonne |
| torque | 840.61 nm / 620.0 ft lbs @ 6500 rpm |
| body / frame | Carbon Fibre |
| driven wheels | RWD |
| front tires | 300-640×18 |
| rear tires | 355-710×18 |
| front brakes | Brembro Carbon Fibre Discs |
| f brake size | x 356 mm / x 14.0 in |
| rear brakes | Brembro Carbon Fibre Discs |
| r brake size | x 356 mm / x 14.0 in |
| front wheels | F 45.7 x 30.5 cm / 18.0 x 12.0 in |
| rear wheels | R 45.7 x 37.5 cm / 18.0 x 14.8 in |
| f suspension | Pull Rod Outboard Coil Springs |
| r suspension | Locker Operated Overhead Inboard Damping with Lower Wishbone and |
| curb weight | 845 kg / 1863 lbs |
| wheelbase | 2662 mm / 104.8 in |
| front track | 1534 mm / 60.4 in |
| rear track | 1504 mm / 59.2 in |
| length | 4782 mm / 188.3 in |
| width | 1994 mm / 78.5 in |
| height | 1003 mm / 39.5 in |
| transmission | Mazda & Porsche 5-Speed Manual |
| gear ratios | :1 |
| drag | 1991 Cd |
