ACT XACT Streetlite Flywheel – 1987 Mazda RX-7 (FC3S)

Sharpen throttle response and improve acceleration in your FC3S RX-7 with the ACT XACT Streetlite Flywheel. Engineered for street and race use, the Streetlite is a lightweight forged steel flywheel that reduces rotational mass for noticeably quicker engine response and improved acceleration — without the harsh engagement characteristics of a full race flywheel. Ideal for RX-7 builds ranging from spirited street driving to occasional track use.

Key Features

• Improved Engine Response & Acceleration: Reduced rotational mass delivers noticeably quicker throttle response and faster revving compared to the heavy OEM flywheel
• Heat-Treated Forged Steel Construction: Forged for superior strength and toughness over cast alternatives — built to handle the demands of street and race use
• Induction-Hardened Ring Gear: Maximizes ring gear service life for long-term reliability
• One-Piece Construction: Eliminates the failure points of multi-piece designs — no warped inserts, no loose ring gears, and uniform efficient heat transfer from the clutch disc
• CNC Machined & Dynamically Balanced: Precision machined and computer balanced for smooth, reliable high-RPM operation
• Street & Race Recommended: Suitable for OE to mild gear rattle — a versatile upgrade for performance street and track builds

Specifications

• Type: XACT Streetlite Flywheel
• Material: Forged Steel
• Construction: One-Piece
• Part Number: 600145

Fitment

• 1987 Mazda RX-7 (FC3S)

Note: Professional installation required. Flywheel must be resurfaced or replaced at every clutch change. Verify compatibility with your specific RX-7 transmission and clutch configuration before ordering. Always torque flywheel bolts to ACT’s specified values.