1991 Mazda 787B


1991 Mazda 787B

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 byRichard Owen
engineR 26B Quad-Rotary
positionMid Engine
displacement2622 cc / 160.0 in³
power522.0 kw / 700.0 bhp @ 9000 rpm
specific output266.97 bhp per litre
bhp/weightbhp per tonne
torque840.61 nm / 620.0 ft lbs @ 6500 rpm
body / frameCarbon Fibre
driven wheelsRWD
front tires300-640×18
rear tires355-710×18
front brakesBrembro Carbon Fibre Discs
f brake sizex 356 mm / x 14.0 in
rear brakesBrembro Carbon Fibre Discs
r brake sizex 356 mm / x 14.0 in
front wheelsF 45.7 x 30.5 cm / 18.0 x 12.0 in
rear wheelsR 45.7 x 37.5 cm / 18.0 x 14.8 in
f suspensionPull Rod Outboard Coil Springs
r suspensionLocker Operated Overhead Inboard Damping with Lower Wishbone and
curb weight845 kg / 1863 lbs
wheelbase2662 mm / 104.8 in
front track1534 mm / 60.4 in
rear track1504 mm / 59.2 in
length4782 mm / 188.3 in
width1994 mm / 78.5 in
height1003 mm / 39.5 in
transmissionMazda & Porsche 5-Speed Manual
gear ratios:1
drag1991 Cd