The Audi TTS (Mk2) is a compelling sports car known for its nimble handling and responsive performance. While the factory braking system is adequate for everyday driving and spirited road use, enthusiasts seeking a more advanced solution for track days or demanding driving scenarios may consider upgrading to carbon ceramic brakes (CCB). This article will explore the engineering characteristics of CCB technology and how it can potentially enhance the driving experience of your Audi TTS.
Unsprung Weight vs Iron Rotors: What Changes With CCB?
Carbon ceramic brake rotors are typically up to 40-50% lighter than their cast iron counterparts. For a performance sports car like the Audi TTS, this reduction in unsprung weight can contribute to a noticeable improvement in suspension response, allowing the wheels to more closely follow the road surface. This can translate to enhanced steering feel, improved cornering grip, and a more agile driving experience.
Heat Soak and Fade Resistance: Where C/SiC Rotors Differ
Standard iron brake rotors are susceptible to heat soak under sustained heavy braking, which can lead to brake fade and reduced stopping power. Carbon ceramic rotors, on the other hand, are engineered for exceptional thermal stability. They are designed to maintain a high and consistent friction coefficient at temperatures exceeding 900°C, potentially contributing to improved braking consistency and confidence during demanding driving sessions.
Longevity Considerations: CCB Upgrade vs Conventional Brake Discs
While iron brake rotors typically require replacement at regular intervals depending on driving style and conditions, carbon ceramic discs are designed for extended service life. Under normal street-driving conditions, CCB rotors can last up to 300,000 km. This extended lifespan, coupled with reduced brake dust, can contribute to lower long-term maintenance costs, despite the higher initial investment.
Brake Dust, Oxidation, and Daily Appearance: What to Expect
A common complaint among performance car owners is the excessive brake dust generated by high-performance iron brake pads. Carbon ceramic brakes can significantly reduce this issue, helping to keep your Audi TTS's wheels cleaner for longer. Furthermore, the C/SiC material is highly resistant to oxidation and road salts, reducing the surface corrosion often seen on traditional iron rotors, maintaining a cleaner aesthetic.
Floating Hat + C/SiC Matrix: Why This Design Is Used
Premium carbon ceramic brake rotors often utilize a floating aluminum hat (bell) system. This design is engineered to allow for thermal expansion of the rotor without putting undue stress on the mounting points. Additionally, high-quality CCBs may feature a continuous long carbon fiber (T700 grade) woven into a 3D matrix with Silicon Carbide, offering a more robust and consistent structure compared to chopped-fiber alternatives, designed for improved durability.
Upgrading to carbon ceramic brakes is a significant investment that should be carefully considered. For Audi TTS owners who prioritize performance, reduced maintenance, and enhanced aesthetics, CCB technology offers a compelling set of engineering advantages. It's recommended to consult with a qualified brake specialist to determine if a CCB upgrade is the right choice for your specific needs and driving style.
