ATI Elastomer Kit 3 Ring 7 w/80/70/70 ATI918960-87
High-RPM Elastomer Kit for 7-Inch 3-Ring ATI Super Dampers
The ATI Elastomer Kit (part ATI918960-87) is a precision replacement for 7-inch, 3-ring ATI Super Dampers. Featuring an 80/70/70 durometer configuration, this setup delivers stiffer inner damping for improved control at high engine speeds while maintaining flexibility for smooth operation in mid-range RPMs. Designed for high-performance street, racing, and forced-induction engines, this kit restores and enhances your dampers ability to control torsional vibration and protect your rotating assembly.
Performance Highlights
- Designed for 7-inch, 3-ring ATI Super Dampers
- 80/70/70 durometer combination enhances stability at high RPM
- Reduces crankshaft harmonics and vibration for smoother operation
- Restores factory-level damping performance
- Protects engine bearings and accessories from harmonic stress
- Manufactured from high-strength, heat-resistant elastomer compounds
Quick Specs
- Application: ATI Super Damper
- Damper Size: 7 inches
- Design: 3-Ring
- Durometer Rating: 80/70/70
- Material: High-Performance Elastomer
- Compatibility: Steel Super Dampers
- Part Number: ATI918960-87
Why Choose the ATI918960-87 Elastomer Kit?
The ATI918960-87 Elastomer Kit provides superior damping control for engines operating at sustained high RPM or under heavy load. Its stiffer 80-durometer inner ring improves harmonic balance at high speed, while the dual 70-durometer rings maintain flexibility and smoothness at lower and mid-range RPM. This configuration is ideal for race engines or high-performance builds that demand precision, durability, and stability across the powerband.
Frequently Asked Questions
What does 80/70/70 durometer mean?
It means the inner ring has a harder 80-durometer rating for high-speed control, while the middle and outer rings are softer 70-durometer compounds for balanced damping response.
Is this compatible with aluminum dampers?
No. The ATI918960-87 kit is designed specifically for steel 7-inch Super Dampers. For aluminum models, use the aluminum-specific version.
Is this setup good for racing or boosted engines?
Yes. The 80/70/70 configuration is ideal for forced induction, high-compression, or competition applications requiring enhanced harmonic stability.
Should I replace all elastomer rings together?
Yes. Replacing all three rings ensures balanced harmonic performance and optimal damping efficiency.
Why Buy from Beefcake Racing?
Beefcake Racing is your go-to source for ATI Performance Products, including Super Dampers, rebuild kits, and engine accessories. Our experts can help you find the perfect elastomer configuration for your build and performance goals. For assistance or orders, contact sales@beefcakeracing.com or call 1-855-827-7223. Trust Beefcake Racing for expert support, fast shipping, and unbeatable pricing on the performance parts you need.
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