User Guide

EXEDY Globalparts Corporation • 800.346.6091 • www.exedyusa.com
EXEDY Globalparts Corporation • 800.346.6091 • www.exedyusa.com
Function of Various Sports/Performance Products
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Function of Various Sports/Performance Products
65
Easy to Handle
By controlling the carbon bers
and baking temperature, the cross
layer type carbon material, which
is the most appropriate for high
revolution strength and high torque
transmission, is applied to tuning car
clutches. Semi-carbon clutches oer
lightweight, high heat resistance and
a stable friction coecient. EXEDY
Carbon clutches are tuned so that
at a lower temperature, engagement feeling is improved and conversely at high temperatures,
engagement is ideal for spirited driving.
Long Life
Semi-Carbon clutches allow double the life when
compared to conventional metallic type material,
which equates to an improved cost performance
thanks to longer overhaul cycles. Full carbon
clutches have more wear than metallic however,
when used with over-sized pressure plates, the life
is identical to metallic.
Hyper Carbon Series-D
Introducing the Next Generation of clutch systems by EXEDY – Carbon-D, the
revolutionary Carbon Clutch System.
Carbon-D was developed to achieve the ultimate goal of comfort
and drivability by absorbing noise and vibration emitted from
drivetrain components such as the dierential,
transmission and engine. The Carbon-D system is
designed to protect the drivetrain by absorbing
and dissipating “shock torque” by utilizing EXEDY
Patented Technology. Superior engineering
enables the Carbon-D clutch system to posses
an ideal clutch engagement position, increased
clamp loads and lower pedal eort, while the
unique Carbon Fiber friction material allows
comfortable half-engaged clutch operation and
responsive gear changes.
Carbon-D Single
• Introductionofa
damper to absorb and
dissipate noise and
vibration
• Highclampload,lower
pedal eort and ideal
clutch engagement is
obtained with the use
of the re-engineered
diaphragm spring
• QuietStrapDrivedesignto
minimize mechanical noise
• PatentPendingDiscSystem
Carbon-D Twin
• Introductionofadampertoabsorbanddissipatenoiseandvibration
• Withareductioninpedaleortandanincreaseindiscsizeto225mm,theCarbon-DTwin
clutch is ideally suited to high performance street vehicles
• ByoptimizingtheweightandinertiaoftheCarbon-DClutchSystem,drivabilityisimproved
at low speeds
Gear Noise and Fluctuations in Engine Rotation (rpm)
Even engines that seem to run very smoothly always have some amount of uctuation in engine
rotation. These uctuations, when transferred from the engine to the transmission, cause gear
teeth carrying no torque to strike mating teeth, resulting in noise (“tooth hammer”). The noise is
louder in the interior as well as outside the vehicle because the clutch housing acts as a speaker and
magnies the noise. Although the noise level and noise-generating speed depend on the type and
model of car, such noise is more frequent in a 6-speed vehicle than in a 5-speed vehicle.
Vibration-Absorbing Damper
The conventional damper used in most sports clutches is designed to protect the transmission from
shock torque caused by abrupt clutch engagement, so it does little to absorb vibration. Ecient
absorption of uctuations in engine speed requires a very exible spring and proper setting of
the hysteresis torque. The exibility of the spring, however, is likely to run counter to the damper
capacity. For this reason, Carbon-D is equipped with a new dual stage damper, a low-load stage
and rapid-acceleration stage, both of which are perfectly tuned for each car type. This tuning
technology is available only from EXEDY, the specialist in high performance clutch systems.
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