English
Description
Manufacturer
Product Tags
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 Racing Clutch
NASCAR Gen-6 Cup
Sintered metallic 7.8 mm – vehicle-specific for Gen-6 Cup
For NASCAR Gen-6 Cup cars 2020–2021 (Chevrolet Camaro ZL1 1LE, Ford Mustang, Toyota Camry): the SACHS RCS 1/200 S7.8 racing clutch combines a high-strength forged aluminum housing with precise modulation – ideal for the Cup layout with 358 ci (≈ 5.86 L) V8, 4-speed H-pattern gearbox and rear-wheel drive.
The 7.8 mm sinter-pad friction disc (Ø 200 mm) offers high heat capacity and a wide wear reserve. The bite point remains stable over long stints, pit-lane launches are repeatable, and tough yellow-flag restarts are managed with confidence.
Steel pressure components ensure launch strength and durability. The set-up is engineered for the thermal loads of long oval runs, road-course braking zones and repeated pit-stop cycles – delivering consistent, predictable lap times in Cup operation.
Advantages
High wear volume
High temperature resistance
Long operational life
Less Mass
One of the greatest strengths of the RCS sintered clutch is its low mass and the associated low mass inertia.
The SACHS RCS clutches have been designed for racing with the objective that torque is transmitted rapidly and directly from the engine to the gearbox.
Reducing the weight of the crankshaft drive to lower the moment of inertia will considerably increase vehicle acceleration performance in the lower gears.
Faster Acceleration
If the clutch itself has a moment of inertia (MoI) of 0.061 kgm2, the MoI on the drive wheel will be 180 times higher (in first gear) for a reduction in transmission of 13.4:1 (13.42). If we convert this value into vehicle mass, we arrive around 145 kg of additional weight to be accelerated in first gear.
As a result of the low moment of inertia of the SACHS RCS clutch, shifting times are considerably reduced and the vehicle accelerates much faster.
The technology
Technical data RCS 1/200
-
Vehicle/series:
NASCAR Gen-6 Cup Car 2020–2021
(Camaro ZL1 1LE / Mustang / Camry) - Maximum engine torque [Nm]: 830
- Release diameter [mm]: 49
- Release force [N]: 3,700
- Release travel [mm]: 5.0 + 0.5
- Mass (weight) [kg]: 3.15
- Moment of inertia [kg·m²]: 0.02089
Clutch cover (housing)
High-strength forged aluminum for maximum stiffness at minimal weight. The geometry promotes heat dissipation and stabilizes the clutch pack’s temperature window; a hard-wearing coating reduces friction and fit wear, extending service life in Cup use.
Friction lining
The 7.8 mm sinter-pad disc increases wear margin and heat capacity. Local temperature peaks decrease, fade/warp risks are reduced and friction remains stable over long duty cycles – ideal for long green-flag runs and repeated pit-lane starts.
SACHS RCS hub
Vehicle-specific hub spline: supplied with the correct spline for Gen-6 Cup 4-speed H gearboxes (2020–2021), precisely matched to the input shaft of Camaro/Mustang/Camry chassis for top fit accuracy, reliable torque transfer and maximum durability.
Scope of supply
RCS 200 clutch cover (HA200), aluminum
RCS 200 pressure plate (PP200), steel
RCS 200 clutch disc, sinter pad 7.8
Hub length: long
Quality Made in Germany
ZF Race Engineering has been among the technology leaders in motorsport for years. The combined know-how from top-level racing flows directly into the development of RCS racing clutches. State-of-the-art manufacturing methods, the highest quality standards and motorsport technologies make ZF Motorsport clutches the first choice for maximum performance and reliability - on circuits as well as in rallying, touring and endurance racing.
Applications
Americas – NASCAR Cup Series
Exclusive competition use 2020–2021 in the NASCAR Cup Series: Daytona, Talladega, Charlotte (incl. Roval), Las Vegas, Atlanta, Texas, Kansas, Darlington, Dover, Phoenix, Martinsville, Bristol (incl. Dirt), Richmond, Watkins Glen, Sonoma, Road America, Indianapolis Road Course, and more.
Partners of ZF Race Engineering
