ACT Clutch

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Overview

Advanced Clutch Technology (ACT) manufactures performance clutches and flywheels for domestic, import, European, and truck markets. The company focuses on high-performance driveline components, supporting applications from street use to drag racing, drifting, time attack, rally, and land speed records. It differentiates through in-house manufacturing of patented diaphragm springs and assembly of clutch kits and flywheels.

History

Founded in 1994 by Dirk Starksen as a side project from his role at Kennedy Engineered Products, ACT began developing clutches for Japanese import drag racing vehicles like Mitsubishi Eclipse and Honda B-series engines. It expanded in the 2000s to support pro drift, time attack, rally, and land speed racing. The company operates from a 22,000 sq ft facility in Lancaster, CA, where it manufactures diaphragm springs and assembles products.

Product Lines

Product Line	Positioning	Price Range
Sport Compact Clutch Kits	High-performance for import drag and street	$400 - $1,500
Domestic Clutch Kits	Upgraded clutches for American muscle cars	$500 - $2,000
European Clutch Kits	Performance for Euro performance vehicles	$600 - $1,800
Truck Clutch Kits	Heavy-duty for diesel trucks	$700 - $2,200
Twin-Disc Clutch Kits	Modular high-torque racing applications	$1,200 - $3,000
Flywheels	Lightweight and street/race compatible	$300 - $800

Manufacturing

ACT operates a 22,000 sq ft facility in Lancaster, CA, where it manufactures its own patented diaphragm springs. All clutch kits and flywheels are designed, tested, and assembled in-house.

Notable Products

Monoloc Clutch Collar - One-piece innovative collar design for secure clutch engagement.
Modular Twin-Disc Clutch Kits - Configurable high-torque kits for racing applications.
HC12 Kits - High-clamp pressure plates covering high-performance cars including 2024 Acura Integra Type S.
Patented Diaphragm Springs - In-house produced springs providing superior clamping force.

Reputation

ACT is regarded by enthusiasts and racers for reliable performance in high-stress motorsports like drag racing and drifting, backed by in-house engineering and testing. Professionals value its application-specific designs and torque capacities. Some note higher pricing compared to budget alternatives, but durability justifies the cost for serious builds.

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