SFI SPECIFICATIONS

The majority of ACT products meet SFI Specification 1.1 or 1.2, which ensures safety for both the spectator and driver. For a product to meet SFI Certification, the following is required:

Use of Specific Materials

• Steel, ductile iron, titanium and wrought aluminum.
• Not to include unacceptable materials such as all grades of gray iron and cast aluminum.

Testing

• A mechanical properties test to determine if the material tensile strength, yield strength and elongation are within SFI requirements.
• A rotational integrity test that requires spinning the part for one hour at 1.5 times the certified RPM. The centrifugal force increases exponentially, placing more than twice the amount of centrifugal load on the part over the certified RPM. The parts must retain their integrity to pass.

Recertification

Parts must be sent back to ACT every two years for inspection and recertification.

Which ACT parts meet SFI Specifications?

• ACT denotes which parts meet SFI specifications in our Application Guide and on our website, under the specifications tab for a product.
• Each part is issued an official SFI sticker and serial number.
• The RPM limits for pressure plates that meet SFI Specifications are listed in the Application Guide. Discs are not rated to a specific RPM.
• Uncertified discs may be certified to SFI Specification 1.1 upon request.

Why SFI Certification and when is it needed?

• SFI Foundation, Inc. sets the specifications to protect the driver and spectator.
• Establishes recognized levels of performance and quality of products.
• Required by most racing organizations and tracks.

SFI SPEC. 1.1 APPLIES TO:

Single-disc clutches

Friction discs

Flywheels

SFI SPEC. 1.2 APPLIES TO:

Multiple-disc clutch assemblies

Friction discs

Floater plates

Flywheels