Aggiorna il servizio frizione DSG - DSG DQ250

Inviaci la tua frizione e la trasformeremo per gestire quella coppia extra come un vero campione. Sperimenta cambiate fulminee e prestazioni migliorate che ti lasceranno senza parole. Dove la precisione incontra la potenza.

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.

Dopo due anni di test continui sulla pista di Santa Pod in Inghilterra, abbiamo raccolto informazioni preziosissime per raggiungere uno dei traguardi più impegnativi: stabilire il record europeo sui 0-400 metri (quarto di miglio) con un tempo di 7,8 secondi e una velocità d’uscita di 300 km/h utilizzando un motore 2.0L.

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.

Il risultato non è stato solo il tempo ottenuto, ma anche il record della pista e il record europeo per auto a trazione anteriore: 1,3006 secondi nello 0-18 metri.

A few words about power transmission.

La coppia viene generata dal motore e trasferita attraverso i componenti della trasmissione: volano, frizione, cambio, differenziale, semiassi e infine alle ruote. Qual è il ruolo della frizione in tutto ciò? La frizione deve trasferire i giri motore e la coppia al cambio durante la partenza, quando il motore passa da 5.000 giri in launch control a mettere in rotazione il cambio da 0 giri. Esistono componenti fissi e componenti rotanti. Nella frizione, i componenti fissi sono i dischi organici montati con i meccanismi sulla frizione e collegati al cambio, mentre i componenti rotanti includono il motore, il volano, il cestello frizione e le piastre metalliche, che sono integrate e flottanti su di esso.

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!