ACT's Race discs are made with high quality, ceramic friction materials. The chrome-moly hub is heat-treated for strength and durability. The lightweight, rigid design allows for quicker shifts and smooth, trouble-free service. With the 4-pad rigid race disc, engagement is harsher, but shifting is faster. Available in solid or spring centered, the race discs will reduce driveline shock and spline wear due to torsional dampeners.
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Spring Centered
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- Most popular
- Reduced driveline shock and spline wear due to torsional dampeners
- Quieter operation by reducing torsional vibrations
- Choose 6-pads for better heat capacity and better engagement
- Choose 4-pads for the quickest shifting
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Rigid-Hub |
- Increased gear noise and increased spline wear is expected
- Improved durability because of stronger hub components
- Choose 6-pads for better heat capacity and better engagement
- Choose 4-pads for the quickest shifting |
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ACT Race disc Key Features- Premium ceramic friction materials provides high-treat tolerance, high coefficient of friction and low wear rates.
- All friction pads are measured, sorted and matched before assembly to ensure that each disc is uniform in thickness.
- Carefully broached splines to ensure exact fir onto the transmission input shaft for long spline life and better clutch release.
- ACT provides thicker retainer stampings for increased strength and reliability.
- Top grade rivets are used to securely fasten the part together. Rivet design and rivet materials are carefully selected for maximum strength.
- ACT springs retainers feature wraparound spring windows that provide support and reduce stress concentrations, which are common causes of failure.
- Heavy duty torsional dampening springs are stronger in most cases than standard springs and are provided in the best sizes and spring rates to suit the application.
- All drive plates consist of high-carbon spring steel that is heat-treated and black zinc-plated to resist bending, cracking, fatiguing and rusting, even under severe racing conditions.
- Precision stampings for disc components are manufactured using dedicated tooling. This allows ACT to offer the highest in quality and consistency.
- Most spring-centered assemblies use bushings and cone springs to create frictional dampening, which reduces noise and extends clutch life.
- All race disc are certified as meeting SFI Specification 1.1 and are legal in all racing organizations that require SFI certification.
This is a street rigid disc featuring premium organic materials with high copper content for better heat transfer and steel-backed lining for greater burst strength and durability. These discs are modified with reduced marcel for faster shift action to complement ACT pressure plates. The chrome-moly hub is heat-treated for strength and durability. Rivet design and materials are carefully selected for maximum strength. Lightweight, solid-hub design allows for quicker shifting and engagement. ACT's street rigid-hub discs provide race-proven performance with street manageability.
Feel:Smooth engagement, quicker shifts, increased gear rattle.
Life:Premium organic composite friction blended for high heat tolerance, increased burst strength, faster recovery from overheating and less wear of mating surfaces, rigid design may increase spline wear.
Quality:Chromoly hub is heat-treated for strength and durability.
Recommendation:Recommended for high horsepower street or race use.
Difference:Steel-backed linings for higher burst strength, reduced marcel for quicker shifts.
Disc Diameter (Inches): 8.7
Disc Diameter (Millimeters): 220
Material: Organic
Weight: 2.4 lbs (approx. 1,09 kg)
SFI: 1.1
Spline Count: 24
Spline Size (Inches): 1
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