Vortech Superchargers Cog Pulley Package - 28T S/C / 77T Crank Underdrive (1986-1993 Mustang 5.0) 8E031-028
35mm Cog Drive Pulley Package for 1986-1993 Ford Mustang 5.0
The Vortech Superchargers Cog Pulley Package (PN 8E031-028) is engineered for 1986-1993 Ford Mustang 5.0L applications using a 35mm cog supercharger drive system. This configuration pairs a 28-tooth supercharger pulley with a 77-tooth crank underdrive pulley, delivering precise, slip-free power transmission for high-load, high-boost environments.
Designed for Vortech-equipped Fox Body Mustangs, this matched cog pulley setup maintains consistent belt engagement under boost while retaining compatibility with a 4.75-inch 6-rib accessory drive for factory-style front-end accessories.
Cog Drive Performance Advantages
Cog drive systems eliminate belt slip entirely, making them ideal for aggressive boost levels and sustained high-RPM operation. The 28T/77T tooth-count combination provides a balanced drive ratio for dialing in supercharger speed and boost characteristics, resulting in predictable boost curves and repeatable performance for serious street/strip and race builds.
Included Components
- 28-tooth supercharger cog drive pulley (35mm pitch)
- 77-tooth crank cog underdrive pulley (35mm pitch)
Application Details
- Designed for 1986-1993 Ford Mustang 5.0L
- All crank pulleys are 35mm cog
- Compatible with 4.75" 6-rib accessory drive
- Intended for Vortech cog-drive supercharger systems
Quick Specs
- Manufacturer: Vortech Superchargers
- Part Number: 8E031-028
- Vehicle: 1986-1993 Ford Mustang 5.0L
- Supercharger Drive: 35mm Cog
- Supercharger Pulley: 28 Tooth
- Crank Pulley: 77 Tooth Underdrive
- Accessory Drive: 4.75" 6-Rib
FAQs
- What is the advantage of the 28-tooth supercharger pulley?
The 28T pulley offers a moderate drive ratio option that helps fine-tune supercharger speed and boost output based on engine combination and power goals. - Will this work with factory accessories?
Yes. The crank pulley retains compatibility with a 4.75" 6-rib accessory drive for factory-style accessories.
Emissions & Legal Notice
- NOT AVAILABLE OR LEGAL FOR SALE IN CALIFORNIA
- For off-road and competition use only
- Installation on emissions-controlled vehicles driven on public roads may violate federal emissions laws
Fitment
- 1986 Ford Mustang 5.0L
- 1987 Ford Mustang 5.0L
- 1988 Ford Mustang 5.0L
- 1989 Ford Mustang 5.0L
- 1990 Ford Mustang 5.0L
- 1991 Ford Mustang 5.0L
- 1992 Ford Mustang 5.0L
- 1993 Ford Mustang 5.0L
Why Buy from Beefcake Racing?
Beefcake Racing is an authorized Vortech Superchargers dealer with extensive experience supporting Fox Body Mustang supercharger builds. From selecting the correct cog ratios to ensuring durability at elevated boost levels, our team helps you configure your setup for reliable, repeatable performance.
Email: sales@beefcakeracing.com
Phone: 1-855-827-7223
CA Residents: WARNING: Cancer and Reproductive Harm www.P65Warnings.ca.gov
