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  See more parts for Mazda RX-7
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ACT HD/Perf Street Sprung Kit Mazda RX-7 1986-1991 - Z65-HDSS

Upgrade Your Mazda RX-7 with the ACT Z65-HDSS Clutch Kit

If you're a proud owner of a 1986-1991 Mazda RX-7, you know that performance is key to getting the most out of your rotary engine. The Advanced Clutch Z65-HDSS Heavy Duty/Performance Street Sprung Kit is designed specifically for your RX-7, combining durability and performance to enhance your driving experience.

Why Choose the Z65-HDSS Clutch Kit?

The Z65-HDSS features ACT's renowned Heavy Duty pressure plate and a performance-oriented street disc. This kit is engineered for those who demand more from their clutch, whether you're hitting the streets or the track. Here’s what sets it apart:

  • Exclusive Diaphragm Design: Increases clamp load while reducing deflection, maximizing clutch life.
  • Four-Stage Heat Treatment: Each diaphragm undergoes a rigorous heat-treating process for exceptional performance under pressure.
  • Precision Engineering: ACT pressure plates are crafted with precision cover stampings, ensuring rigidity and consistency.
  • Performance Street Disc: Made from premium organic materials with high copper content for superior heat transfer and durability.
  • Fast Shift Action: Reduced marcel in the disc allows for quicker shifts, enhancing your driving experience.

Installation Made Easy

Installing the Z65-HDSS is straightforward, especially for those who enjoy getting their hands dirty. For detailed installation instructions, CLICK HERE.

Features at a Glance

  • Light to moderate pedal effort for a comfortable driving experience.
  • Longer friction life thanks to ACT's innovative diaphragm design.
  • Engineered for both street and race use, providing versatility for any driver.
  • 100% clamp load tested and dynamically balanced for reliable high RPM performance.

Technical Specifications

  • Clutch Disc Diameter: 9.4 in (240 mm)
  • Torque Capacity: 330 ft/lbs
  • Input Spline Quantity: 23
  • Input Shaft Diameter: 1 in
  • Disc Material: Organic
  • Weight: 15.9 lbs
  • Alignment Tool: Included
  • Release Bearing: Included
  • Pilot Bearing: Included

Customer Feedback

Owners of the Mazda RX-7 have praised the Z65-HDSS for its reliable performance. One user mentioned, “After installing the ACT Z65-HDSS in my RX-7, I noticed a significant improvement in shift responsiveness. The pedal feel is perfect—not too stiff, and the engagement is smooth. It’s a must-have upgrade for anyone looking to enhance their rotary experience!”

Conclusion

The ACT Z65-HDSS Clutch Kit is an essential upgrade for 1986-1991 Mazda RX-7 owners looking to maximize performance and reliability. With its robust design and proven materials, this clutch kit will elevate your driving experience on both the street and the track.

Other Part Numbers:
ACT #actZ65-HDSS

Proposition 65

⚠ WARNING: Cancer and Reproductive Harm
https://www.P65Warnings.ca.gov

Vehicle
1986-1991
 Mazda RX-7

ACT Banner

ACT ? Advanced Clutch Technology | Clutch Kits & Flywheels Built to Handle Real Power

If you've added boost, tuned for more power, or simply want better throttle control, then your stock clutch won't cut it. That?s where ACT (Advanced Clutch Technology) comes in delivering high-performance clutch kits and flywheels designed for real drivers who push their builds on the street, strip, or track.

ACT?s lineup includes everything from daily driver friendly HD kits to hardcore twin disc setups for serious horsepower. Whether you?re launching hard in a WRX, drifting in a 370Z, or canyon carving in an M3, ACT gives you the torque capacity and engagement you need without sacrificing drivability.

Why ACT? Because Power Without Control Is Useless.
  • Hold More Power Engineered to handle turbo, supercharger, and high-compression builds
  • Faster Engagement Stronger pressure plates for better bite off the line
  • Better Pedal Feel Balanced response without going full race-car stiff
  • Reduced Rotational Mass Lightweight flywheels improve rev-matching and response
  • No Guesswork Direct-fit applications, no fabbing, no hassle
ACT Clutch Kits and Flywheels Fit the Cars Enthusiasts Build

ACT doesn?t just make universal performance parts ? they build complete, vehicle-specific clutch solutions for enthusiast favorites. Whether you daily a Civic Type R, track a Subaru STI, drift a 240SX, or drag a Mustang GT, ACT offers the right clutch to match your build goals.

Top supported platforms include the Nissan 350Z/370Z, Toyota Supra A90, Chevy Camaro SS/ZL1, Mitsubishi Evo, Ford Focus RS/ST, and BMW M3/M4 ? each with clutch options tuned to your driving needs.

What ACT Offers:
  • Performance Clutch Kits From HD street kits to twin-disc race systems
  • Clutch Discs 6-puck, full-face, rigid or sprung to match your style
  • Pressure Plates Heavy-duty options that increase clamp load without sacrificing control
  • Chromoly Lightweight Flywheels Quicker revs, smoother shifts, and less drivetrain stress
  • Complete Hardware Kits Everything you need for a proper install
Performance Tested. Driver Approved.

ACT isn?t hype ? it?s proven. Their clutches are SFI-certified, track-tested, and used by racers in drag, time attack, autocross, drift, and rally. But what really matters? They hold power, last longer, and feel right even after hundreds of hard launches or hours of canyon carving.

Whether you're upgrading for more power or replacing a tired OEM clutch, ACT gives you the bite, strength, and feel to drive harder with confidence. No compromises, no excuses just parts that work when it matters.

ACT warrants all products to be free of defects in materials and workmanship for normal use and service for a period of one (1) year from retail purchase. Written notice must be immediately given to ACT within the warranty period. We require a copy of the purchase receipt showing the unit was purchased from an Authorized Dealer or Advanced Clutch Technology directly to verify the product is under warranty. Products purchased used do not carry a warranty. This warranty is to the original purchaser and is non-transferable. All non-warranty items are subject to a $50 inspection bench test fee.

ACT reserves the right to examine any part returned for warranty claim to determine, to ACT's satisfaction, whether the material or workmanship of the part does not conform to this limited warranty. ACT's obligation under this warranty shall be limited to repairing, replacing, or crediting, at its option, any part which is deemed covered by ACT. No labor, lift or storage charges will be reimbursed for any reason. Damage to ACT's parts resulting from misuse, improper use, or abuse shall void this limited warranty. Failure to follow ACT's installation instructions and the vehicle manufacturers installation procedures and specifications shall void this limited warranty.

ACT undertakes no responsibility for the quality of the goods except as otherwise provided in this contract. ACT assumes no responsibility that the goods will be fit for any particular purpose for which you may be buying these goods, except as otherwise provided in the contract. ACT shall not be liable for any damage or injury to persons or property resulting from improper installation or misuse of any part subject to this warranty.

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