The unit comes dynamically balanced with the starter motor ring gear machined into the flywheel for improved high RPM safety. Weight is lightened at 3.5KG improving engine response through reduced intertia, other weights are available if preferred. The clutch is made by Sachs Race Engineering in Germany coming from their RCS range. This is a twin 140mm clutch setup for the ultimate reduction in inertia. This kit is available with a torque capacity of 480 or 960NM.
Some stock is carried but the flywheels are usually custom machined to order and can take 4-6 weeks. The custom nature does means we can machine almost any variant of these with ease, including catering for changes in weight, timing markers or a full range of competition clutches in 140mm, 184mm, 200mm and 215mm can be specified for reduced inertia and improved stiffness. This can be supplied with various splines for various gearbox combinations.
We'd recommend a motorsport release bearing with this kit, but if you're using the OEM release bearing Sachs make a spacer to adapt to the flat diaphragm. The engineers at ZF SACHS Race Engineering have been technical racing clutch partners of several Formula One teams, Porsche Motorsports, BMW Motorsports as also Volkswagen Motorsports for years now. Their expertise is now directly available in the SACHS Racing Clutch System (RCS), which can be individually configured for all racing series. Standard clutches are only of limited suitability for racing. Comfort is one of the main focuses of development work on standard clutch kits.As a result, these car clutches tend to be relatively large and heavy. Completely different requirements are placed on competition clutches used for racing. Here the focus is on reducing the weight and moment of inertia (MoI), in order to enable maximum engine acceleration as well as minimum shift duration. Both the weight and the MoI can be significantly reduced by decreasing the clutch diameter and by using special materials.
The clutch principle is based on friction and friction generates heat. Larger clutch kits have the advantage of being able to absorb considerably more heat. Smaller clutches run a corresponding risk of overheating. For this reason, they feature clutch friction linings made of sintered, sinter pad, or carbon materials, which are more temperature-resistant than the organic linings on standard car clutches.
Sintered and sinter pad linings are twice as temperature-resistant as conventional organic linings, while carbon is as much as five to six times more resistant. Used in Formula One clutches, carbon has a very low weight in addition to its extremely high thermal resistance. With its modular RCS system, ZF SACHS Race Engineering offers a high degree of variability for racing clutches. The system can be configured to provide individual solutions for specific vehicles and tracks.Our clutches are developed for virtually all racing applications. Their low weight and moment of inertia are among the most important parameters for racing.
SACHS RCS racing clutches have not been developed for specific vehicles, but can be used in virtually all cars. However, adjustments, have to be made, such as to the geometry of the flywheel, position of the clutch releaser and the limitation of the clutch release path. To compile the right clutch a number of different parameters need to be considered.
The most important factor is the application, because this determines the requirements that are placed on the clutch. Closely related factors include the type of vehicle, the engine torque, and the installation space. Sachs provides individual solutions on the basis of these key features. The RCS range comprises 4 different clutch diameters: 115 mm, 140 mm, 184 mm, and 200 mm. Friction linings come in carbon, sintered, sinter pad, and organic materials.
Another option is the number of friction discs. Sachs RCS offers 1, 2, 3, or 4-disc clutches. The clutch clamping force should also be considered.
Moreover, individual components can be produced in different materials. The following pages contain more detailed explanations of individual clutch parameters. SACHS RCS Racing Clutches The Technology for Motor Sports. The item "BMW E30 M3 S14 Billet lightweight flywheel + Sachs RCS Race Twin 140mm Clutch" is in sale since Monday, September 30, 2019.This item is in the category "Vehicle Parts & Accessories\Car Parts\Transmission & Drivetrain\Flywheels & Flywheel Parts". The seller is "rennsportfactory" and is located in Launceston. This item can be shipped worldwide.