EXEDY® – Stage 3 Racing Clutch Kit

Description

Product DetailsStage 3 Racing Clutch Kit by EXEDY®. Exedy Single-plate clutches are engineered to optimize the performance of cars that are moderately modified, but do not require the clutch capacity of a multi-plate clutch. Similar to Exedy’s multi-plate clutches, it has a purple anodized, low-deflection forged aluminum cover. This bolt-on design is easy to install.NotesSFI 1.1 Approved – Certified for use in Competitive MotorsportsFAQGuideAbout usFeaturesAverage of 40% increase in clamp load over stockExtra capacity handles street/race car power upgradesForged assembly is far stiffer than stamped-typeIncredible strength means no clamp-load deflectionIntegrated turbine-like fins enhance airflow, keeping clutch assembly cooler and extending component lifeForged Chromoly FlywheelCombination of low weight and high heat capacityDesigned for Rally, Drag and hi-performance StreetSFI approved for racingEXEDY exclusive friction compositionHigh friction-coefficient materialDesigned for low wear and high heat resistanceReduced diameter damping disc for reduced inertiaPatent Pending disc systemRace or extreme street applicationsEXEDY’s forged aluminum pressure plate delivers a higher clamp load than the stock clutch without a significantly higher pedal effort, because the stiffer forged cover allows all of the pedal travel to be utilized to disengage the disc. A stamped steel plate is spongier, taking up some of the pedal travel as it flexes. The stiffer forged cover allows the use of a stiffer diaphragm spring, pivoted differently inside the cover for more mechanical advantage. The increased mechanical advantage lowers pedal pressure, while the lack of lost motion permits normal pedal travel. The bottom line: more torque-holding capacity and great feel at part-engagement. An additional feature of the pressure plate is a series of turbine-like, airflow-enhancing vanes that keep the clutch cooler under extreme operating conditions, which improves durability. The heaviest components of the clutch system are the clutch cover, plates and flywheel. Low inertia discs allow the transmission to synchronize in a shorter interval of time, eliminating time loss during shift changing while also reducing stress on drivetrain components. The weight of a carbon clutch disc is one third that of a metallic disc. For most streetable applications, the preferred clutch disc is the cerametallic style with a damper hub. This style of disc will have a consistent feel throughout the day, from the first cold start of the day to a launch from the Christmas Tree after a heat-inducing burnout. The damper hub will help with a smooth launch and improved gearchange feel, as well as eliminate gear rattle at moderate speeds. Gear rattle is caused by variations in crankshaft rotational speed, as individual cylinders fire. That in turn makes the gear teeth bounce and rattle against each other as you head on down the road. A more ambitiously-modified vehicle, used mostly for drag racing, autocrossing or rallying might benefit from the use of a Carbon-D friction disc, Faced with pure carbon-fiber, laid one strand at a time and baked at 3600° to cure, carbon fiber has an interesting characteristic: it’s coefficient of friction (COF) gets higher as it gets hotter. Unfortunately, it’s inconveniently low when at room temperatures, rising to the same COF range as cerametallic friction material when warmed properly. Used in a street vehicle, its inconsistent takeup may be annoying in a daily driver. Carbon fiber is very long-lived in heavy-duty use, however. Carbon-D friction discs have a spring-dampener hub for easy shifting and quiet gears. Carbon-D is equipped with a new dual stage damper, a low-load stage and rapid-acceleration stage, both of which are individually tuned for each car type. For a dedicated race or track car, Carbon-R friction is preferred. The lack of a dampener hub may mean a fair amount of harshness, vibration and noise may intrude into the cabin or be felt in the gearshift or clutch pedal. The undampened hub, combined with the lighter weight of the whole assembly may make starting up difficult to do without some initial judder. The advantages in shifting speed and torque capacity are the payoff for this lack of refinement. Due to the inherent properties of the carbon material, EXEDY suggests the proper way to bring the discs up to operating temperature. The correct method is three sequential five second “slips” of the clutch within 30 seconds at low RPM. This will heat the discs so they will hold the specified torque rating. EXEDY® is a global leader in the clutch business, with hundreds of applications, many of them still bearing their original Daikin logo. Well-respected, and with a huge share of the OEM clutch industry, EXEDY has become a leader in the motorsports field, pioneering new technologies like puller clutch springs and carbon-fiber friction material. With roots going back to 1923, EXEDY manufactures globally, but has a major presence in the US, with several domestic facilities manufacturing clutch components for applications here and for export.InstallationEXEDY® – Installation InstructionsWarrantyEXEDY Warranty Policy All goods/products supplied by EXEDY are warranted against faulty material and/or workmanship. Warranty does not apply if maltreatment, damage caused by collision or incorrect fitting exists. Claims will be rejected where clutch kits and/or clutch components have been fitted to incorrect or unlisted applications. Flywheel must be resurfaced/machined to manufacturer’s specifications before new clutch kit is fitted, otherwise warranty will be void. Standard OEM Replacement Clutch Kits Standard OEM replacement clutch kits are guaranteed for a period of twelve (12) months or 20,000 miles, which ever occurs first. Automatic Transmission Kits Automatic Transmission steels and wet friction products are guaranteed for a period of twenty-four (24) months or 50,000 miles, which ever occurs first, against manufacturer’s defects. Claims on wet friction products will not be entertained on any claim level, sight unseen of the product that claims to be faulty. Sports/Performance Due to the intended use and nature of these goods/products, they are warranted as follows: Stage 1, Stage 2, and Racing Flywheels – 60 days from date of purchase All Hyper Series Clutch Kits – 90 days from date of purchase Stage 3, Stage 4, and Stage 5 – No warranty available Individual components – No warranty available OEM Replacement clutch kits and Automatic Transmission kits used in performance applications are not covered by any warranty.Magnuson-Moss Warranty Act:Legally, a vehicle manufacturer cannot void the warranty on a vehicle due to an aftermarket part unless they can prove that the aftermarket part caused or contributed to the failure in the vehicle (per the Magnuson Moss Warranty Act (15 U.S.C. 2302(C)) Learn More Related LinksPartsTransmissionClutch Kits