The Spool Performance clutch upgrade kit has been developed for the Speedshift DCT 7-speed transmission on the Mercedes-AMG C190 platform for situations where engine power and torque clearly exceed the capacity of the OEM clutch package. Over a year of development and testing, the optimized design increases friction surface area, improves thermal management and takes torque endurance to a whole new level without compromising driveability.
7/8 clutch configuration – larger friction surface
Spool's innovative 7/8 clutch design upgrade increases the number of plates and friction surface area:
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Better powertrain efficiency
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More even load distribution
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Significantly higher torque endurance
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Less clutch slippage under heavy use
Additional plates enable higher torque readings to be transmitted safely even at high temperatures.
FX-DCTR friction material – motorsport grade
Spool Performance developed the FX-DCTR friction material specifically for DCT transmissions, where a high coefficient of friction and high energy tolerance are required.
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High coefficient of friction for excellent grip
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Excellent thermal stability
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Long service life under heavy loads
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OEM-style engagement feel
Even though the material can withstand significantly higher loads, the shifting feel remains soft and predictable.
Torque endurance up to ~1400 ft-lbs
The assembly is designed to handle up to approximately 1400 ft-lbs (~1900 Nm) of torque:
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Suitable for hybrid turbo builds
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Suitable for high boost pressures and E85 configurations
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Stable operation in track use
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Long service life in harsh temperature cycles
This clearly exceeds the clutch capacity of the standard Speedshift DCT.
Reduced drag torque and improved efficiency
Redesigned separator springs reduce drag torque:
The result is a more responsive and efficient driveline.
OEM compatible installation
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Designed for drop-in installation into the OEM clutch basket
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No machining or special modifications
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Only needs normal DCT clutch adaptation
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Optimized for clearances and easy assembly
Who is this series suitable for?
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Mercedes-AMG GT / GTS / GTC / GTR big-power builds
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Hybrid turbo and high-boost setups
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AMG projects intended for track use
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Power classes 900–1500+ hp
Fit
Mercedes-AMG C190 chassis with Speedshift DCT 7-speed transmission:
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Mercedes-AMG GT
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Mercedes-AMG GTS
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Mercedes-AMG GTC
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Mercedes-AMG GTR