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 by | Richard Owen |
| type | Racing Car |
| built at | Germany |
| production | 4 |
| engine | Water Cooled Flat-6 |
| position | Mid Longitudinal |
| aspiration | Twin KKK K26-3060G Turbos w/Hybrid Water & Air Intercoolers |
| valvetrain | 4 Valves / Cyl |
| fuel feed | Bosch-Kugelfischer Mechanical Injection |
| displacement | 2649 cc / 161.7 in³ |
| bore | 92 mm / 3.62 in |
| stroke | 66 mm / 2.6 in |
| compression | 7.5:1 |
| electronic system | Bosch Motronic |
| power | 462.3 kw / 620 bhp @ 8200 rpm |
| specific output | 234.05 bhp per litre |
| bhp/weight | 756.1 bhp per tonne |
| torque | 599.27 nm / 442 ft lbs @ 5000 rpm |
| redline | 8560 |
| body / frame | Carbon Fiber reinforced Kevlar |
| front brakes | Internally Vented Dual Circuit Discs w/Twin Calipers |
| rear brakes | Internally Vented Dual Circuit Discs w/Twin Calipers |
| curb weight | 820 kg / 1808 lbs |
| wheelbase | 2650 mm / 104.3 in |
| length | 4800 mm / 189.0 in |
| width | 2000 mm / 78.7 in |
| transmission | 5-Speed Manual |
| top speed | ~350 kph / 217.5 mph |
