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Designed to make a
difference
ZF Race Engineering's SACHS motorsport clutches have stood for top-tier quality in international racing for decades. The ambition: continuous improvement and the drive to keep pushing the limits. From the lightest clutch used in Formula 1 to proven twin-plate and multi-plate systems in WRC, DTM, NASCAR, Le Mans and the Dakar Rally - ZF Motorsport technology is a core component of many winning cars worldwide.
SACHS carbon racing clutch
for Aston Martin Vantage GT3 Evo
The Clutch of Competence
Vehicle-specific optimization for the Aston Martin Vantage GT3 Evo (from model year 2024): the SACHS carbon clutch RCC 4/140 delivers maximum track performance with minimal diameter and the lowest moment of inertia - ideal for the packaging and durability demands of modern GT3 cars.
ZF Race Engineering brings state-of-the-art technology from Formula 1, Super GT, and WRC to the GT3 application. Focus: low weight, ultra-low inertia, and high temperature resistance - for consistent, repeatable performance over the entire stint window.
The RCC 4/140 carbon clutch meets the demanding requirements of the Vantage GT3 Evo. The result: uncompromising competitiveness, precise response at launch and during shifts, and high reserves in long stints.
A system mass of only 2.44 kg and a low moment of inertia of 0.00768 kg·m² enable rapid rpm matching and short shift windows. In this vehicle-specific configuration, up to 1,330 Nm can be transmitted - perfectly matched to the torque characteristics of the Aston Martin Vantage GT3 Evo.
Benefits
maximum thermal resilience - carbon quality from Formula 1
very low weight and minimal moment of inertia
smooth and comfortable launch behavior
no flywheel wear
extreme durability - up to 4x longer than conventional sintered racing clutches
Lowest mass
One of the major strengths of a carbon racing clutch is its low mass and the resulting low moment of inertia.
They are designed for the lowest possible mass with the goal of transferring engine torque to the gearbox as quickly and directly as possible.
Lightening measures in the cranktrain that reduce the moment of inertia increase vehicle acceleration noticeably in the lower gears.
Faster acceleration
If, for example, the clutch has a moment of inertia (Mtm) of 0,061 kgm2, with a gearbox ratio of 13,4:1 (first gear ratio) this acts at the drive wheel with 180 times the value (13,42). Converting Mtm into vehicle mass results in an additional weight of approx. 145 kg in 1st gear that must be accelerated.
Thanks to the extremely low inertia of the SACHS carbon clutch, shift times are significantly reduced and the vehicle accelerates faster.
Maximum service life
For carbon clutches there are pressure plate and shim packs available that compensate carbon wear. With these compensation pressure plates the clutch can be reset to as-new condition - significantly extending service life.
Each unit undergoes stringent quality checks and is individually tested and measured before shipment. Preload force, installation height and release characteristics are documented. The preinstalled carbon stack thickness is also recorded - the included document supports maintenance and the shimming process (compensation pressure plates for refurbishment).
Technology
Technical data RCC 4/140
- Vehicle:
Aston Martin Vantage GT3 Evo (from 2024) - maximum engine torque [Nm]: 1,330
- release diameter [mm]: 38
- release force [N]: 4,800
- release travel [mm]: 4.5 + 0.5
- mass (weight) [kg]: 2.44
- moment of inertia [kg·m²]: 0.00768
Clutch cover (housing)
High-strength forged aluminum engineered for maximum stiffness at minimum weight. The housing geometry supports efficient heat dissipation and stabilizes the clutch pack's temperature window - ideal for the thermal loads of the Vantage GT3 Evo (from 2024).
Material: carbon
Carbon excels in GT3 use with high temperature capability, consistent friction across a wide operating window, and finely controllable engagement even at elevated disc temperatures. Low density reduces inertia and drag torque; good thermal conductivity promotes rapid temperature stabilization - advantages in sprints, tight circuits, and long stints.
Hub spline profile
Vehicle-specific hub spline profile: the RCC 4/140 is supplied with the correctly matching hub spline for the Aston Martin Vantage GT3 Evo (from 2024) - precisely matched to this model's gearbox input shaft. This ensures highest fit accuracy, reliable torque transfer, and maximum durability in racing. Custom solutions are available on request.
Scope of supply
RCS 140Y clutch cover (HA184), aluminum
4 × RCS 140Y carbon driven plates
5 × RCS 140Y carbon pressure plates
1x RCS 140Y hub, steel
1x RCS 140Y base plate, steel
1x RCS 140Y pressure ring, steel
Quality Made in Germany
ZF Race Engineering has been among the technology leaders in motorsport for years. The combined know-how from top-tier racing flows directly into the development of carbon racing clutches. State-of-the-art manufacturing methods, the highest quality standards and motorsport technologies make carbon clutches the first choice for maximum performance and reliability - on circuit racing as well as in rally, formula and endurance applications.
Applications
Endurance/Sprint Europe
FIA World Endurance Championship,
ELMS, LMGT3, IGTC, GT Masters, NLS and more.
North America
IMSA WeatherTech SportsCar Championship,
GT World Challenge America and more.
Asia/Pacific
GT World Challenge Asia,
Asian Le Mans Series, SUPER GT (GT300) and more.
Partners of ZF Race Engineering
