ATI Damper 7.074in Aluminum Race 6 Groove Rear Pulley 10% Underdrive (20002009 Honda S2000 & F20 / F22 Engines) ATI918465
7.074in Aluminum 10% Underdrive Race Super Damper for 20002009 Honda S2000 (F20 / F22 Engines)
The ATI 7.074-inch Aluminum Super Damper (part ATI918465) is designed for serious racers running 20002009 Honda S2000 with F20C or F22C engines. Featuring a 10% underdrive ratio, 6-groove rear pulley, and race-spec aluminum construction, this damper minimizes parasitic loss, improves engine balance, and enhances harmonic stability under extreme RPM conditions. Perfect for high-performance builds, its built to withstand the demands of competition while delivering smooth, efficient power.
Performance Highlights
- 10% underdrive ratio reduces accessory drag for measurable horsepower gains
- 7.074-inch outer diameter offers precise balance and race-level damping control
- Lightweight aluminum construction reduces rotating mass for faster acceleration
- 6-groove rear pulley supports OEM-style belt systems
- Optimized for high-RPM racing and track use
- SFI 18.1 certified for professional motorsport compliance
- Fully rebuildable for consistent, long-term precision
Quick Specs
- Outer Diameter: 7.074 inches
- Material: Aluminum
- Pulley Type: 6 Groove Rear Pulley
- Drive Ratio: 10% Underdrive
- Use: Race Specification
- Certification: SFI 18.1
- Applications: 20002009 Honda S2000 / F20C / F22C Engines
- Part Number: ATI918465
Why Choose ATIs 10% UD Race Super Damper for the Honda S2000?
The ATI918465 Race Super Damper is the ultimate upgrade for high-RPM S2000 engines that demand precision and performance. The 10% underdrive pulley decreases accessory load, freeing up horsepower and reducing stress at redline. Its race-spec aluminum 3-ring design ensures superior vibration control for sustained track abuse. Whether for time attack, circuit racing, or drag use, this damper offers unrivaled balance and protection for the F-series platform.
Frequently Asked Questions
Whats the difference between this race version and the street model?
The race version is tuned for high-RPM performance and competition use, featuring optimized damping for engines frequently operating at or near redline.
What does a 10% underdrive damper do?
The 10% underdrive reduces accessory speeds by 10%, lowering parasitic drag and improving efficiency without affecting essential systems during racing conditions.
Will it fit both F20C and F22C engines?
Yes. The ATI918465 is a direct-fit damper for all 20002009 Honda S2000 models with F20C and F22C engines.
Is it rebuildable?
Yes. Like all ATI Super Dampers, the ATI918465 is fully rebuildable for continued accuracy, reliability, and long service life under demanding conditions.
Vehicle Fitment
- 2000 Honda S2000 F20C
- 2001 Honda S2000 F20C
- 2002 Honda S2000 F20C
- 2003 Honda S2000 F20C
- 2004 Honda S2000 F22C
- 2005 Honda S2000 F22C
- 2006 Honda S2000 F22C
- 2007 Honda S2000 F22C
- 2008 Honda S2000 F22C
- 2009 Honda S2000 F22C
Contact Beefcake Racing
Beefcake Racing offers the complete line of ATI Super Dampers for import and domestic performance engines. For expert advice or to order, email sales@beefcakeracing.com or call 1-855-827-7223. Our knowledgeable team can help you find the ideal damper for your Honda S2000 race build.
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