Vortech Superchargers 8-Rib Pulley Pack 3.12" Non-Underdrive (1986 Ford Mustang / 1987 Ford Mustang / 1988 Ford Mustang / 1989 Ford Mustang / 1990 Ford Mustang / 1991 Ford Mustang / 1992 Ford Mustang / 1993 Ford Mustang 5.0) 8E018-312
3.12" 8-Rib Non-Underdrive Pulley Pack for 1986-1993 Mustang 5.0
The Vortech Superchargers 8-Rib Pulley Pack (PN 8E018-312) is engineered for 1986-1993 Ford Mustang 5.0L applications equipped with non-underdriven accessories. This pulley package is ideal for Fox Body Mustang owners looking to fine-tune boost levels or upgrade belt drive capacity while maintaining factory-style accessory speeds.
Whether you're converting from a 6-rib setup to an 8-rib or 10-rib configuration, or dialing boost up or down to better match your engine combination, this Vortech pulley pack includes the necessary components to properly configure your supercharger drive system with improved belt traction and reliability.
Purpose-Built Pulley System
This 3.12" non-underdrive pulley package is designed around Vortech's proven drive system geometry, allowing precise boost adjustments without altering accessory operation. The 8-rib belt interface increases contact area compared to traditional 6-rib setups, helping reduce belt slip under higher load conditions.
Performance & Capability
- Pulley Diameter: 3.12 inches
- Belt Drive: 8-Rib
- Accessory Configuration: Non-underdrive
- Boost Adjustment: Enables controlled boost tuning
Application Notes
This pulley pack is intended for 1986-1993 Mustang 5.0L vehicles running non-underdriven accessories. When changing pulley diameter or rib count, proper belt length and supporting components should always be verified to ensure correct fitment and optimal performance.
Quick Specs
- Manufacturer: Vortech Superchargers
- Part Number: 8E018-312
- Product Type: Supercharger Pulley Pack
- Pulley Diameter: 3.12"
- Belt Type: 8-Rib
- Accessory Drive: Non-Underdrive
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 U.S. federal emissions law
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
FAQs
- What is the benefit of a 3.12" pulley size?
A 3.12" pulley typically reduces peak boost compared to smaller pulleys, making it useful for fine-tuning power delivery and managing traction. - Is this pulley pack compatible with underdrive accessories?
No. This pulley pack is designed specifically for engines using non-underdriven accessory configurations.
Why Buy from Beefcake Racing?
Beefcake Racing is an authorized Vortech Superchargers dealer with extensive experience supporting Fox Body Mustang supercharger builds. From pulley selection to complete boost system optimization, we help ensure every component is matched correctly for reliable, repeatable performance.
Email: sales@beefcakeracing.com
Phone: 1-855-827-7223
CA Residents: WARNING: Cancer and Reproductive Harm www.P65Warnings.ca.gov
