ATI Super Damper SFI 20% Overdrive 10 Rib (20112025 Mustang GT) 918048
High-Performance 10-Rib 20% Overdrive Harmonic Balancer for Mustang GT
The ATI Super Damper SFI 20% Overdrive 10 Rib (PN 918048) is engineered for Mustang GT owners running serious power through their 5.0L Coyote engine. Designed to handle high-RPM stress and forced-induction setups, this damper increases accessory drive speed by 20% while maintaining perfect balance and harmonic control. Featuring a 10-rib serpentine pulley, it provides maximum grip for supercharged applications and ensures efficient power transfer at every RPM.
Each ATI damper includes bolt-on provisions for popular supercharger pulleys and comes laser-etched with 360° timing marks for accurate tuning. Exceeding SFI 18.1 safety standards, its NHRA-approved for use in competition vehicles and is a must-have upgrade for Cobra Jet and high-horsepower Coyote builds.
Performance Highlights
- 20% Overdrive: Increases accessory drive speed for optimized power output.
- 10-Rib Serpentine Design: Provides superior belt grip and reduces slippage under boost.
- Supercharger-Ready: Compatible with bolt-on pulleys from top supercharger brands.
- Laser-Etched 360° Timing Marks: Simplifies precise tuning and ignition setup.
- SFI 18.1 Certified: Meets NHRA competition safety requirements.
- Tunable & Rebuildable: Long-lasting, serviceable design for extended performance.
Quick Specs
- Part Number: 918048
- Application: 20112025 Ford Mustang GT, 2013 Cobra Jet, 2013 Supercharged Cobra Jet
- Drive Type: 10-Rib Serpentine
- Overdrive Percentage: 20%
- Outside Diameter: 7.88 in.
- Material: Aluminum/Steel Hybrid
- Construction: Elastomer
- Finish: Black Anodized
- Engine Balance: Internal
- Degree Markings: 360° Laser-Etched
- Safety Rating: SFI 18.1
- Mounting Hardware: Included
- Compatibility Notes: Requires Ford 10-Rib conversion kit or electric water pump for stock pump clearance.
Why Choose the ATI Super Damper 918048?
ATIs Super Damper series is trusted by top racers and engine builders for its proven ability to eliminate harmful crankshaft harmonics and maintain power across the RPM range. The 918048 version gives Coyote-powered Mustangs a 20% overdrive advantageideal for boosted setups running larger accessories or superchargers. Its the ultimate upgrade for those who demand precision, performance, and safety in one package.
FAQs
Q: Can I use this damper with my stock water pump?
A: No. The 918048 requires a 10-rib conversion kit or an electric water pump for proper clearance.
Q: Is this damper compatible with aftermarket superchargers?
A: Yes. It includes provisions for bolt-on pulleys from major supercharger manufacturers.
Q: Does this damper increase horsepower?
A: Indirectly, yes. By eliminating crankshaft harmonics and improving belt traction, it helps reduce parasitic loss and improve engine efficiency.
Vehicle Fitment
- 2011 Ford Mustang GT 5.0L Coyote
- 2012 Ford Mustang GT 5.0L Coyote
- 2013 Ford Mustang GT 5.0L Coyote
- 2013 Ford Mustang Cobra Jet
- 2013 Ford Mustang Supercharged Cobra Jet
- 2014 Ford Mustang GT 5.0L Coyote
- 2015 Ford Mustang GT 5.0L Coyote
- 2016 Ford Mustang GT 5.0L Coyote
- 2017 Ford Mustang GT 5.0L Coyote
- 2018 Ford Mustang GT 5.0L Coyote
- 2019 Ford Mustang GT 5.0L Coyote
- 2020 Ford Mustang GT 5.0L Coyote
- 2021 Ford Mustang GT 5.0L Coyote
- 2022 Ford Mustang GT 5.0L Coyote
- 2023 Ford Mustang GT 5.0L Coyote
- 2024 Ford Mustang GT 5.0L Coyote
- 2025 Ford Mustang GT 5.0L Coyote
About Beefcake Racing
Beefcake Racing is your trusted source for Mustang and high-performance parts, offering expert support and unbeatable pricing. Whether you're upgrading with an ATI Super Damper or adding a complete power package, our team helps you build it right the first time. Contact us today at sales@beefcakeracing.com or call 1-855-827-7223 for personalized advice from true gearheads.
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