Edelbrock Supercharger Pulley

Edelbrock E-Force Competition Supercharger Pulleys

When it comes to extracting maximum performance from a forced-induction build, few adjustments are as impactful — or as precise — as swapping your supercharger drive pulley. Edelbrock, a name synonymous with American performance engineering since 1938, brings that same level of craftsmanship to its lineup of supercharger pulleys, giving enthusiasts a direct, mechanical way to dial in boost pressure to match their engine's needs.

The E-Force Competition Pulley Lineup

Edelbrock's supercharger pulleys are purpose-built for use with the company's own E-Force supercharger systems. These Competition Supercharger Pulleys are designed to let you fine-tune the airflow and performance of your E-Force Supercharger system to your exact preference. Rather than accepting a one-size-fits-all boost level, builders can select from a broad range of diameters — spanning from approximately 2.625 inches up to 4.125 inches — to precisely control how hard the supercharger spins relative to the crankshaft.

The lineup covers three distinct rib configurations to match different belt-drive setups:

• 6-Rib Pulleys — Designed for use with Stage 3 Professional Tuner supercharger systems, these are among the most popular options for Mustang platform builds.
• 8-Rib Pulleys — Compatible with 2016+ Camaro supercharger kits as standard equipment, and also available for 2011+ Mustang supercharger kits equipped with the optional 8-rib conversion kit (#15879).
• 10-Rib Pulleys — Built for high-demand applications where belt grip and power transfer are critical at elevated boost levels.

All pulleys in the Competition series feature a black anodized finish, providing both corrosion resistance and a clean, aggressive underhood appearance that complements Edelbrock's E-Force supercharger units.

Pulley Sizing: How It Affects Boost

Understanding pulley sizing is essential for getting the most out of a supercharger system. A smaller-diameter drive pulley spins the supercharger faster, generating higher boost pressure — ideal for builds with supporting fuel and ignition upgrades. A larger-diameter pulley reduces supercharger speed, lowering boost to a more conservative, streetable level. Edelbrock's wide range of available diameters means builders at every stage — from mild street cruisers to all-out competition cars — can find a pulley that matches their tune and power goals.

Designed for the E-Force Ecosystem

One of the key strengths of Edelbrock's Competition Supercharger Pulleys is their tight integration with the broader E-Force product family. These pulleys are engineered specifically for Professional Tuner supercharger systems, ensuring proper fitment and belt alignment right out of the box. Whether you're optimizing a 5.0L Mustang or a late-model Camaro, Edelbrock's pulley options keep your boost tuning grounded in parts that were designed to work together from the ground up.