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-7 / Next Gen
Sintered metallic 7.8 mm, solid design – vehicle-specific for Next Gen Cup cars
For NASCAR Gen-7 / Next Gen Cup cars (from 2022) – Chevrolet Camaro ZL1, Ford Mustang, Toyota Camry: the SACHS RCS 1/200 S7.8 racing clutch combines high-strength lightweight components with precise modulation. Engineered for the Cup V8 with 358 ci (≈ 5.86 L), the 5-speed sequential transaxle, multi-link rear axle and 18" Cup wheel sets.
The 7.8 mm sinter-pad friction disc (Ø 200 mm) delivers high heat capacity and wear reserve for consistent starts and restarts, stable brake/shift points on road courses and long green-flag runs on ovals. Calibrated for Cup power levels of 670 hp (standard package) and 510 hp (superspeedways) with Sunoco Green E15.
High-strength steel pressure components ensure launch robustness and durability. The forged aluminum clutch cover provides stiffness at low weight and supports a stable temperature window – ideal for the thermal loads of the Next Gen platform with underbody aero and large brake packages.
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-7 / Next Gen Cup Car (2022– )
Camaro ZL1 / Ford Mustang / Toyota 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 – maximum stiffness at minimal weight. The geometry supports efficient heat dissipation and keeps the clutch pack’s temperature window stable.
Friction lining – sintered metallic 7.8 mm
7.8 mm sinter pads increase heat capacity and service life, lowering hotspots, reducing fade/warp risk and maintaining a stable friction coefficient over long duty cycles – from short tracks and 1-mile ovals to road courses.
SACHS RCS hub
Supplied with the correct hub spline for the Next Gen 5-speed sequential transaxle – 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 in the NASCAR Cup Series (from 2022): superspeedways (Daytona, Talladega, Atlanta), 1–1.5-mile ovals (e.g. Las Vegas, Kansas, Charlotte, Homestead, Nashville), short tracks (Martinsville, Bristol, Richmond, Phoenix) and road courses (COTA, Watkins Glen, Sonoma, Indianapolis RC, Charlotte Roval).
Partners of ZF Race Engineering
