ATI Damper 7.074in Aluminum 6 Groove 5.29 OD 10% Underdrive 2 Ring (19941998 Toyota Supra) ATI918574
7.074in Aluminum 6-Groove 10% Underdrive Super Damper for 19941998 Toyota Supra (2JZ-GE / 2JZ-GTE Engines)
The ATI 7.074-inch Aluminum Super Damper (part ATI918574) is designed for 19941998 Toyota Supra models equipped with 2JZ-GE or 2JZ-GTE 3.0L engines. This 2-ring, 6-groove damper features a 5.29 OD diameter and 10% underdrive ratio for reduced accessory drag, improved throttle response, and superior harmonic control. Constructed from billet aluminum and SFI 18.1 certified, the ATI918574 delivers the ideal balance of strength, lightness, and reliability for both street and high-performance Supra builds.
Performance Highlights
- 7.074-inch outer diameter ensures accurate harmonic balancing and smooth operation
- 10% underdrive ratio reduces accessory speed to free up horsepower
- Dual-ring (2-ring) configuration enhances vibration absorption for high-RPM stability
- 6-groove pulley maintains OEM belt alignment and accessory drive compatibility
- 5.29 OD design supports efficient crankshaft control with minimal rotational loss
- Billet aluminum construction for lighter rotational mass and faster engine response
- SFI 18.1 certified for sanctioned race use and ultimate safety
- Fully rebuildable for consistent performance and longevity
Quick Specs
- Outer Diameter: 7.074 inches
- Material: Aluminum
- Pulley Type: 6 Groove
- Drive Ratio: 10% Underdrive
- Configuration: 2-Ring Super Damper
- Certification: SFI 18.1
- Applications: 19941998 Toyota Supra 3.0L (2JZ-GE / 2JZ-GTE)
- Part Number: ATI918574
Why Choose ATIs 10% UD Super Damper for the 2JZ Supra?
The ATI918574 Super Damper gives Supra owners the perfect balance of reduced accessory drag and optimized engine balance. The 10% underdrive pulley helps reclaim lost horsepower by slowing accessory speeds, while the dual-ring design provides elite-level torsional vibration control. This damper is ideal for street, drift, and time attack Supras where smooth operation, durability, and performance gains matter most.
Frequently Asked Questions
What does 10% underdrive mean?
It means the accessories (alternator, power steering, etc.) turn 10% slower than stock, reducing parasitic drag and freeing up horsepower.
Is this compatible with the factory belt system?
Yes. The 6-groove pulley retains OEM belt alignment and supports factory accessory drives.
Can it handle high boost or race applications?
Yes. Its SFI 18.1 certified and precision-balanced to handle high-RPM and forced-induction 2JZ setups.
Is it rebuildable?
Yes. Like all ATI Super Dampers, the ATI918574 is fully rebuildable for long-term reliability and precision.
Vehicle Fitment
- 1994 Toyota Supra 3.0L 2JZ-GE
- 1994 Toyota Supra Turbo 3.0L 2JZ-GTE
- 1995 Toyota Supra 3.0L 2JZ-GE
- 1995 Toyota Supra Turbo 3.0L 2JZ-GTE
- 1996 Toyota Supra 3.0L 2JZ-GE
- 1996 Toyota Supra Turbo 3.0L 2JZ-GTE
- 1997 Toyota Supra 3.0L 2JZ-GE
- 1997 Toyota Supra Turbo 3.0L 2JZ-GTE
- 1998 Toyota Supra 3.0L 2JZ-GE
- 1998 Toyota Supra Turbo 3.0L 2JZ-GTE
Contact Beefcake Racing
Beefcake Racing offers the full line of ATI Super Dampers and premium performance components for Toyotas 2JZ platform. For assistance choosing the right damper for your setup, email sales@beefcakeracing.com or call 1-855-827-7223. Our experts will help you get the most out of your Supra build.
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