1984 Porsche 956B


1984 Porsche 956B

1984 Porsche 956B

In 1984 Porsche offered a full works-specification car known as the 956B. This provided the New-Man Joest Racing team with a winning formula and they dominated the 1985 24 Hours of Le Mans with a resounding victory.

One of the main differences between the customer 956 and the 956B was the Bosch Motronic engine management. This allowed more precise ignition and injection which in turn provided better economy and more power.

Story by Richard Michael Owen

In Detail

submitted byRichard Owen
typeRacing Car
built atGermany
production4
engineWater Cooled Flat-6
positionMid Longitudinal
aspirationTwin KKK K26-3060G Turbos w/Hybrid Water & Air Intercoolers
valvetrain4 Valves / Cyl
fuel feedBosch-Kugelfischer Mechanical Injection
displacement2649 cc / 161.7 in³
bore92 mm / 3.62 in
stroke66 mm / 2.6 in
compression7.5:1
electronic systemBosch Motronic
power462.3 kw / 620 bhp @ 8200 rpm
specific output234.05 bhp per litre
bhp/weight756.1 bhp per tonne
torque599.27 nm / 442 ft lbs @ 5000 rpm
redline8560
body / frameCarbon Fiber reinforced Kevlar
front brakesInternally Vented Dual Circuit Discs w/Twin Calipers
rear brakesInternally Vented Dual Circuit Discs w/Twin Calipers
curb weight820 kg / 1808 lbs
wheelbase2650 mm / 104.3 in
length4800 mm / 189.0 in
width2000 mm / 78.7 in
transmission5-Speed Manual
top speed~350 kph / 217.5 mph