The RS Spyder has been developed exclusively in-house at Porsche - this being the only way of ensuring that engine, transmission, chassis and aerodynamics combine to create a harmonious overall package. The technology in the RS Spyder has been consistently adapted to the conditions required under the LMP2 rules (Le Mans Prototype 2).
The 90-degree V8 racing engine with a displacement of 3.4 litres generated 478 bhp with the air-restrictor prescribed for 2008. The version used in the ALMS since mid-2008, which comes with direct fuel injection (DFI), generates as much as 503 bhp. Distinguishing features of the long-distance engine are its low weight and low centre of gravity.
The power transmission takes the form of a sequential spur-gear 6-speed dog-type constant-mesh countershaft transmission. A mechanical locking differential and traction control provide for good traction and are operated using buttons on the steering wheel.
A highly rigid carbon fibre monocoque forms the backbone of the RS Spyder together with the engine-transmission unit. Double A-arms which are adjustable in height, camber and toe are employed for the front and rear wheel suspension. The brake system comes with carbon fibre-ceramic brake discs. The design of the multi-part carbon-fibre exterior panelling has been optimised in terms of aerodynamics and thermodynamics.
The RS Spyder has been adapted to comply with the changed rules for the 2009 season. This affects both the aerodynamics due to the 160-cm wide rear wing and the 3.4-litre V8 engine which now generates 478 bhp instead of 440 bhp following the significant reduction required in the size of the air-restrictor.
