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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 Ferrari 296 GT3
The Clutch of Competence
Vehicle-specific for the Ferrari 296 GT3: the SACHS carbon racing clutch RCC 4/140 delivers maximum track performance with minimum diameter and the lowest moment of inertia - ideal for the packaging-critical GT3 layout of the 296 and its 120° V6 biturbo characteristics.
ZF Race Engineering transfers top technology from Formula 1, Super GT, and WRC to the current GT3 generation. Focus: low weight, lowest inertia, and high temperature resistance - for consistent, repeatable performance over long stints in GT3 and LMGT3.
The RCC 4/140 carbon clutch meets the tough demands of the Ferrari 296 GT3: precise response at launch and during shifts, stable friction levels in a high-temperature window, and large reserves for endurance racing.
With a system mass of only 2.44 kg and a moment of inertia of 0.00768 kg·m², it enables rapid rev matching and short shift windows. In this specification up to 1,330 Nm are transmittable - optimally matched to the BoP-shaped power characteristics of the 296 GT3.
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:
Ferrari 296 GT3 3.0 V6 biturbo (2023-) - 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 - tuned to the thermal loads in 296 GT3 endurance use.
Material: carbon
Carbon excels in GT3 with high temperature capability, consistent friction levels across a wide operating range, and fine controllability even at elevated disc temperatures. The low density reduces inertia and drag torque; good thermal conductivity promotes fast 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 correct spline for the Ferrari 296 GT3 - precisely matched to this model's gearbox input shaft. This ensures maximum fit accuracy, reliable power transfer, and durability in competition. Custom solutions are available on request.
Scope of supply
RCS 140Y clutch cover (HA184), aluminum
4 × RCS 140Y carbon drive plates
5 × RCS 140Y carbon pressure plates
1× RCS 140Y hub, steel
1× RCS 140Y base plate, steel
1× 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
Europe
FIA WEC (LMGT3), 24h Nürburgring / NLS,
GT World Challenge Europe (Endurance & Sprint), DTM, national GT3 series.
North America
IMSA WeatherTech (GTD PRO & GTD),
GT World Challenge America / GT America, regional 12h/24h events.
Asia/Pacific
Asian Le Mans Series (GT3),
GT World Challenge Asia & Australia, regional endurance highlights.
Partners of ZF Race Engineering
