ATI 918478 Super Damper Race for 2002-2015 Honda/Acura K-Series (K20, K24)

Vehicle Fitment

• 2002-2015 Honda/Acura K-Series engines (K20, K24; Civic Si, RSX, Accord, CR-V, Element, TSX, RDX)

Features

• Race-grade damper - no belt drives - ideal for high-RPM, dry-sump builds
• Allows mounting of dry-sump oiling drive gear
• Aluminum shell with steel hub for optimal strength-to-weight
• 360° laser-etched timing marks for precision tuning
• Suppresses crankshaft torsional vibrations across the RPM range
• SFI 18.1 certified - NHRA/IHRA competition-ready
• Compact 7.074" diameter fits tight engine bays
• Rebuildable for long-term use in racing applications

Specifications

• Outer Diameter: 7.074 inches
• Shell Material: Aluminum
• Hub Material: Steel (internal balance)
• Weight: ~7.1 lbs (aluminum shell + hub)
• Inertia Design: 2-ring system (~2.2 lbs inertia)
• Balance: Internal
• Certification: SFI 18.1

Included Components

• 1x ATI 918478 Super Damper Harmonic Balancer
• Note: Mounting hardware and pulley drives are not included

Product Description

The ATI 918478 Super Damper Race version is engineered for high-performance Honda/Acura K-Series (K20/K24) engines built for competition use, spanning model years 2002-2015. Designed without accessory belt drives, this race damper allows for dry-sump oiling drive gear mounting and delivers maximum crankshaft vibration control at sustained high RPMs.

Its lightweight aluminum shell paired with a steel hub ensures a highly responsive, durable component. The 360° laser-etched timing marks aid in precision tuning. At 7.074" in diameter and conforming to SFI 18.1 safety specs, this damper is suited for tight engine bays and NHRA/IHRA racing applications. Mounting hardware is not included, and the part is confirmed for use through 2015; compatibility beyond is unverified at this time.