Améliorez votre entretien d’embrayage DSG - DSG DQ250

Envoyez-nous votre embrayage et nous le transformerons pour encaisser ce surplus de couple comme un champion. Profitez de passages de rapports ultra-rapides et de performances améliorées qui vous laisseront sans voix. Là où la précision rencontre la puissance.

Presentation of Wet Multi-Disc Clutches

Our team at RTMG Performance, after extensive research and development under the most challenging conditions of dragster racing, managed to solve all the development issues of the 02E DQ250 gearbox clutches. Initially, we tested all friction materials, most of which had a lower friction coefficient compared to the factory clutch. Some of these materials not only had a lower friction coefficient but also produced residues, which clogged or sometimes even damaged the solenoids.

Après deux ans de tests continus sur la piste de Santa Pod en Angleterre, nous avons acquis des informations inestimables pour réussir l’un des défis les plus difficiles : établir le record d’Europe sur 0-400 mètres (quart de mile) avec un temps de 7,8 secondes et une vitesse de sortie de 300 km/h avec un moteur de 2,0 L.

How did we develop the clutch?

The clutch struggled with the incredible launch control of our engine, which delivers close to 1,400 horsepower in a 2.0L TSI Golf 6. After approximately every 5 passes, we would remove the clutch and inspect the wear. We tested numerous friction materials until we finally selected the current material.

The most critical point, however, was in the metal plates, which deformed as the car had to cover the first 18 meters as quickly as possible from a standstill, while at the same time ensuring the clutch did not overheat to avoid slipping at high speeds and under high turbo pressures. This led to extensive testing with many materials until we found a steel that had a high friction coefficient but was also highly resistant to high temperatures, as its crystalline structure prevented it from deforming as easily as other materials, including the factory parts. The material we use is thermally treated with tempering, which relieves stress and prevents deformation under the extremely high temperatures generated during the clutch's operation during the launch.

Le résultat n’a pas été seulement le temps réalisé, mais aussi le record de piste et le record d’Europe pour les voitures à traction avant : 1,3006 seconde sur 0–18 mètres.

A few words about power transmission.

Le couple est généré par le moteur et transmis à travers les éléments de la chaîne cinématique : volant moteur, embrayage, boîte de vitesses, différentiel, arbres de transmission, puis finalement aux roues. Quel est le rôle de l’embrayage ici ? L’embrayage doit transmettre les tours et le couple du moteur à la boîte de vitesses lors du départ, lorsque le moteur passe de 5 000 tr/min en launch control à l’entraînement de la boîte à 0 tr/min. Il y a des éléments fixes et des éléments tournants. Dans l’embrayage, les éléments fixes sont les disques organiques montés avec les mécanismes sur l’embrayage et reliés à la boîte de vitesses, tandis que les éléments tournants comprennent le moteur, le volant moteur, le panier d’embrayage et les plateaux métalliques, qui y sont intégrés et flottants.

As the driver initiates the launch by releasing the brake while flooring the throttle, the gearbox control unit compresses a piston that pushes the metal plates, squeezing the organic discs. The friction generated between these components causes the fixed discs to rotate at the same speed as the rotating ones.

To achieve this, several factors come into play, such as the friction coefficient, the surface area, the radius at which the friction materials are located relative to the axis, the cooling rate, and the heat dissipation, which is forced convection. We improved our results by:
a) Increasing the friction surface area.
b) Increasing the friction coefficient.

All of this was achieved by increasing the number of metal and organic discs and installing a bronze bushing instead of a plastic one for the stage 3 setup, to prevent it from melting at high temperatures.

Welcome to our team, welcome to the next generation of performance enhancement!