ACT TECHNICAL INFO & TERMS
ACT certifies many of their clutches to SFI specifications for racing purposes (check product packaging and product to determine if your product is SFI certified). For your safety, always operate within recommended RPM limits set by the automobile manufacturer, do not overheat the clutch, and conform to all rules set by the sanctioning organization. For high RPM applications a bell housing scatter shield should always be used to minimize chances of personal injury.
Due to the hazardous nature of racing ACT accepts no responsibility of any kind for clutches used for racing applications. ACT only certifies that certain parts conform to SFI specifications.
- Release Point Adjustment - Hydraulic System
On some applications the engagement point may be closer to the floor. For most applications the engagement point is adjustable and a small adjustment of the clutch master cylinder push rod will cure the problem. This adjustment is made by screwing the push rod farther into the master cylinder to allow it to actuate the cylinder sooner. Never preload the master cylinder. You may also desire to increase pedal travel by adjusting the pedal stop (when equipped). Most repair manuals include instructions and adjustment specifications. Aftermarket clutch pedals, floor mats or carpet may hinder full pedal travel and may affect the proper performance of the clutch.
- Flywheel Resurfacing
Flywheel resurfacing should only be performed by a professional using the proper machinery. A smooth and flat flywheel surface is critical to proper clutch operation and longevity. It is extremely important to maintain the proper step in the flywheel. Re-balancing the flywheel following resurfacing is also recommended. Maintaining balance of the flywheel will insure that the engine will stay smooth and can reach high RPM without damage to the engine.
- Frequently Asked Questions (FAQs) and Technical Bulletins:
For an updated list of FAQs and Technical Bulletins, please click here.
- Disc Thickness and Allowable Wear
The majority of our discs measure 8mm thick when compressed. The allowable wear for most discs is approximately 2mm of material (compressed disc thickness of 6mm).
- SFI Re-certification
If inspection and recertification to SFI specifications is required for the clutch or flywheel please call for quotation and RGA (Returned Goods Authorization) number prior to sending the parts. If there are any further questions call our tech line at (661) 940-7555 or email