Take your supercharged HEMI to the next level with the Dusterhoff Racing Supercharger Pulley Ring Only. Designed for enthusiasts looking to increase boost pressure and maximise horsepower, this precision-machined pulley ring allows the supercharger to spin faster than factory specifications, creating the potential for significant power gains when paired with proper tuning and supporting modifications. Whether you’re building a street-driven Hellcat, a Trackhawk capable of surprising exotic cars, or a TRX that dominates on and off the pavement, upgrading the supercharger pulley is one of the most effective ways to extract additional performance from your factory blower.
By reducing the effective diameter of the supercharger pulley system, the Dusterhoff Racing Pulley Ring increases rotor speed and airflow, helping generate more boost pressure throughout the RPM range. More boost means more air entering the engine, which can support increased horsepower and torque when combined with the proper fuel system upgrades and ECU calibration. This makes the pulley ring a popular modification among performance enthusiasts seeking improved acceleration, stronger mid-range power, and enhanced overall driving excitement without replacing the factory supercharger assembly.
Manufactured from high-quality materials and engineered for precise fitment, the Dusterhoff Racing Supercharger Pulley Ring is designed to withstand the demanding operating conditions found in high-performance HEMI applications. Precision machining ensures proper alignment and belt engagement while maintaining reliability under increased boost levels. Whether your vehicle sees daily driving, drag-strip launches, roll-racing events, or weekend performance use, this pulley ring delivers the durability and consistency needed to support your performance goals.
For owners looking to maximise the effectiveness of their supercharger setup, pulley upgrades are often paired with custom tuning, upgraded heat exchangers, colder spark plugs, flex-fuel systems, and other supporting modifications. The result is a well-rounded performance package capable of delivering substantial gains over stock while maintaining drivability. As with any boost-increasing modification, proper tuning is required to ensure safe operation and optimal performance.
If you’re looking for additional blower upgrades and supporting performance components, browse our Supercharger Upgrades & Components category for products designed specifically for Hellcat, Trackhawk, TRX, and other supercharged Gen 3 HEMI applications.
Specifications & Features
- Manufacturer: Dusterhoff Racing
- Product Type: Supercharger Pulley Ring
- Application: Factory Supercharged Gen 3 HEMI Engines
- Construction: Precision-Machined Performance Component
- Material: High-Strength Aluminum Alloy
- Finish: Anodized Finish
- Color: Black or Variety of Colors
- Function: Increases Supercharger Rotor Speed
- Performance Benefit: Increased Boost Pressure
- Performance Benefit: Supports Additional Horsepower and Torque
- Installation Type: Direct Fit Pulley Ring Replacement
- Vehicle Compatibility: Dodge Challenger Hellcat
- Vehicle Compatibility: Dodge Charger Hellcat
- Vehicle Compatibility: Jeep Grand Cherokee Trackhawk
- Vehicle Compatibility: Ram 1500 TRX
- Engine Compatibility: 6.2L Supercharged HEMI
- Year Compatibility: Varies by Application
- Weight: Lightweight Design
- Diameter: Application Specific
- Belt Compatibility: Designed for Proper Belt Engagement
- Recommended Supporting Mods: Custom Tune, Colder Spark Plugs, Heat Exchanger Upgrades, Fuel System Upgrades
- Intended Use: Street, Drag Racing, Roll Racing, Performance Applications
- Professional Tuning Recommended: Yes
- Direct Replacement Ring for Compatible Pulley Systems
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