SPEC has seven stages of clutch performance available depending upon the enthusiast’s individual usage and torque requirements. Whether used for street driving, autocross or road racing, to circle track racing, drag racing or pulling performance, SPEC has a clutch package that meets the demands of stock to heavily modified normally aspirated or forced induction engines.
Features an integrally molded carbon-based, High Performance organic lining that offers smooth engagement and excellent life. This lining has an integrally molded steel backing for strength under high clamp loads & temperatures. The hub is double sprung with spring cover relieves for flexibility and heat treated components for strength and durability.
Best for street and limited track / off-road usage.
Features pure segmented or full faced Kevlar disc with steel backing. This lining features excellent drivability like the stage 1, but offers slightly longer life & higher Torque capacity. The hub is double sprung with spring cover relieves for flexibility and heat treated component for strength & durability.
Best for street, drag, pulling and autocross.
Features a multi-friction disc in a full faced configuration with carbon semi-metallic on one side and Kevlar on the other. Bridging the gap between Stage 2 & Stage 3, the 2+ offers drivability and engagement quality characteristic of the Stage 2, but with a 15 – 20% higher Torque capacity. The hub is double sprung with spring cover relieves for flexibility and heat treated components for strength and durability.
Great for street, drag, autocross, road racing, pulling, rallye and drift.
Features a carbon semi – metallic 6 puck sprung hub disc that has been the leading puck clutch in drivability, life and Torque capacity. This unit is designed for street and race cars that require an aggressive but streetable engagement and high torque capacity. The hub is double sprung with spring cover relieves for flexibility and heat treated components for strength and durability.
Great for street, drag, road racing, pulling, rallye and drift.
The flagship stage for a high powered street or race car that requires a manageable and friendly engagement, the stage 3+ features a carbon semi-metallic full faced material that offers unparalleled life, friction coefficient and drivability characteristics in one single package. The hub is double sprung with spring cover relieves for flexibility and heat treated components for strength and durability.
Great for street, drag, drift, autocross, road racing, pulling, rallye and drift
This unit is a solid hub version of the stage 3. The hub is solid 8-rivet and the assembly is heat treated for strength and durability. It is advisable in a 3, 4 or 6 puck configuration. Use the 3 puck for the lightest option or the 6 puck for the smoothest engagement. The 4 puck is a good compromise for both. Street drivable in 6 puck configuration, but not street friendly due to the rigid hub.
Best for drag, road racing, pulling, Rallye and drift.
Features a full – metallic disc with the highest possible friction coefficient. Street drivable but not street friendly. The hub is solid 12 – rivet and the assembly is heat treated for strength and durability.
Best for extreme street and drag racing.
Multidisc Clutches
Multi-disc clutch and flywheel assemblies for limited street, drag race and road race applications. The Mini Twin assemblies are available in different clutch disc and flywheel materials, clamp loads, disc configurations and diameters which are recommended based on the type of usage the vehicle demands. The units are rebuild-able by SPEC or the end user and replacement components or rebuild services are always available. SPEC manufactures to an industry leading one thousandth of an inch for perfect rotational properties and concentric actuation, which optimizes balance, drivability and life.
Best for limited street, drag, drift, road racing, time attack, pulling and rallye.
The Super Twin is for street and track use in cars with extreme horsepower and torque (700-1500 ft lbs tq). The Super Twin offers near-stock drivability, tremendous life expectancy, a no shimming/setup bolt-in installation and maintenance free operation. With all billet construction, these units are smooth and quiet. The units are rebuild-able by SPEC or the end user and replacement components or rebuild services are always available. The super twin is constructed with aircraft grade aluminum and high carbon billet steel milled to an industry leading . 001 inch for perfect balance and actuation. Friction is provided by dampened, full-faced carbon graphite discs. Organic, fiber and full metallic options are available. Flywheel and track-spec hardware are included in each kit.
Best for street, drag, drift, road racing, time attack, pulling and rallye.
