Vortech Superchargers 8-Rib Pulley Upgrade w/ Damper Pulley (2005-2009 Mustang GT) 4FU116-001
8-Rib Drive Upgrade with Damper Pulley for 2005-2009 Mustang GT
The Vortech Superchargers 8-Rib Pulley Upgrade with Damper Pulley (PN 4FU116-001) is designed to convert an existing 6-rib supercharger drive system on 2005-2009 Ford Mustang GT 4.6L applications to a more robust 8-rib configuration. This upgrade is a critical improvement for higher-boost and higher-horsepower builds where belt traction, durability, and consistent boost delivery are essential.
By increasing belt surface contact, the 8-rib drive system significantly reduces belt slip under load, improves supercharger efficiency, and enhances long-term belt life. This assembly includes the required components to complete the conversion and is supplied with a crank damper pulley for proper system integration.
Why Upgrade to an 8-Rib Drive System?
As boost levels and power output increase, 6-rib belt systems can struggle to maintain consistent traction. The Vortech 8-rib upgrade provides increased drive capacity, allowing the supercharger to maintain commanded boost levels without slip-related power loss.
This upgrade is strongly recommended for performance-focused builds and is often considered a must-have supporting modification for higher-output supercharged Mustang GT applications.
Included Components & Features
- Complete hardware required to convert from a 6-rib to an 8-rib supercharger drive system
- Crank damper pulley included
- 3.48" 8-rib supercharger drive pulley
- Improved belt wrap and traction for reduced slip
- Enhanced belt life under high-load conditions
- Designed specifically for Vortech-supercharged applications
Installation Notes
- Designed for vehicles already equipped with a Vortech supercharger system
- Proper installation of the supplied alternator pulley requires an OEM alternator pulley removal tool
- Professional installation is recommended
Quick Specs
- Manufacturer: Vortech Superchargers
- Part Number: 4FU116-001
- Application: 2005-2009 Ford Mustang GT 4.6L
- Upgrade Type: 6-Rib to 8-Rib Drive Conversion
- Supercharger Pulley Size: 3.48"
- Crank Damper Pulley: Included
Emissions & Legal Notice
- NOT AVAILABLE OR LEGAL FOR SALE IN CALIFORNIA
- For off-road or racing use only
- Installation on emissions-controlled vehicles may violate U.S. federal emissions law
FAQs
- Do I need this upgrade for a stock boost setup?
While not always required at low boost levels, this upgrade is highly recommended for higher-boost or aggressive driving applications to prevent belt slip. - Does this kit include everything needed for the conversion?
Yes. This assembly includes the components required to convert an existing 6-rib system to an 8-rib setup, including the crank damper pulley.
Fitment
- 2005 Ford Mustang GT 4.6L
- 2006 Ford Mustang GT 4.6L
- 2007 Ford Mustang GT 4.6L
- 2008 Ford Mustang GT 4.6L
- 2009 Ford Mustang GT 4.6L
Why Buy from Beefcake Racing?
Beefcake Racing is an authorized Vortech Superchargers dealer with extensive experience supporting high-horsepower Mustang builds. From pulley selection to complete supercharger system support, our team ensures your drivetrain upgrades are matched correctly to your performance goals.
Email: sales@beefcakeracing.com
Phone: 1-855-827-7223
CA Residents: WARNING: Cancer and Reproductive Harm www.P65Warnings.ca.gov

