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
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Stage 3 — Hyper Single Clutch
The Hyper Single Clutch is engineered to optimize the performance of
cars that are moderately modied, but do not require the clutch
capacity of a multi-plate clutch. Similar to our multi-plate
clutches, it has a purple anodized, forged aluminum cover.
The aluminum cover is stier than a stamped cover and
therefore allows a higher lever ratio to maintain the
pedal eorts at a reasonable level. There is no clamp
load deection as found in a pressed metal type cover.
All Hyper Single clutches come with a chromoly steel
ywheel, 6-puck cerametallic facing and a spring center
damper disc assembly. The disc is generally smaller
and thinner than the OEM disc making for lower inertia
and therefore quicker, easier shifting and less wear and
tear on the transmission synchro’s. The higher clamp load
and cerametallic friction facings give approximately twice
the holding torque of the OEM clutch and generally higher than other single plate clutches. An
additional feature of the pressure plate is a series of turbine-like, air ow enhancing vanes that keep
the clutch cooler under extreme operating conditions to improve wear life.
• Highfrictioncoecient,lowwear,andaspecialheatresistantmaterial(T5001)hasbeen
developed enabling clutch size to be reduced and increased durability to be achieved.
• Durabilityisimprovedwiththeuseofastronger,smallerdamperdisc,specically
redesigned for the Hyper Single Clutch.
• Alowerlevelofinertiaisachievedoverthegenuinetmentclutchwhichimprovesshift
response for faster gear changes particularly for racing applications.
Pull Type Clutch
The pull type clutch accommodates higher torque, in conjunction with lighter pedal eorts to
produce a superior clutch operation, when adapted to most high-powered vehicles. An EXEDY
Original design.
Advantages
• Unlikethepushtype
cover, when a pull
type cover exes, it will
ex in the direction of
disengagement, assisting
in positive pedal feel.
• Alongerleverratio
achieves a direct decrease
in pedal eort.
Patented One Touch Snap in Function
The problem of detachment diculties is solved by the use of EXEDY original one-touch snap in
bearing design. Detachment can easily be accomplished with the use of a screwdriver, alternatively,
the bearing can be snapped back into place while activating the release fork.
What is Inertia?
Inertia is the tendency of the clutch and ywheel to maintain rotation even when not connected to
the engine torque. This aects the responsiveness of the engine and also the feel of low rpm torque
and start up drivability.
In the case of the clutch disc, lower inertia is always better to improve shift eorts and reduce the
wear on the transmission synchro’s.
Stage 4 & 5 — Hyper Multi-Plate Clutch
Twin and Triple Plate
For high-powered applications, EXEDY oers twin and triple
Multi-Plate Clutches. These are designed for high power
street action as well as drag, road and rally racing.
The twin plate clutches are rated for approximately 500
ft.lbs. TQ @ FW. The triple plate clutches are rated for up to
and over 800 ft.lbs. TQ @ FW. Twins come with both spring
damper discs or solid discs depending on application. Triples
are all solid discs and not recommended for street use.
All of our multi-plate clutches come with a lightweight, chromoly
steel ywheel and the famous purple anodized forged aluminum clutch
cover. Depending on the application, we have both strap drive and lug drive models. All have T5001
cerametallic friction materials for extreme heat resistance.
SD Type
This model has been developed for high powered street cars and race cars with up to approximately
600TQ @ FW. They feature ventilated, thick intermediate plates for improved life and spring damper
discs to protect your transmission and drive line.
SR Type
This model has twin or triple plates developed to be lightweight for quick response. The Triple plate
model is available for over 800TQ @ FW and the twin plate model is rated to approximately 600TQ @
FW. The combination of ultra lightweight solid discs and a lightweight chromoly ywheel gives the
driver a lightened pedal eort and quick response. This can improve your times when running at the
drag strip or road course. They feature ventilated, thick intermediate plates for improved life
HR Type
This model has three plates and is developed specically for high power applications such as over
800TQ @ FW for drag racing. It handles high torque loads and shifts smooth, and because of the
lightweight clutch discs, you can reduce your shift times.