Vortech V-2 Si-Trim Supercharger Head Unit CW Rotation Curved Discharge Black 2E128-044
Black V-2 Si-Trim Centrifugal Supercharger for High-Performance Street & Strip
The Vortech V-2 Si-Trim Supercharger Head Unit (PN 2E128-044) is engineered for modern, improved-breathing engines in high-performance street and strip applications. Designed to deliver substantially improved airflow and efficiency at elevated boost levels, the V-2 Si-Trim provides strong, repeatable power gains while maintaining the refined drivability Vortech is known for.
This configuration features clockwise (CW) rotation, a curved discharge for flexible charge-pipe routing, and a durable black finish, making it a versatile choice for both performance-focused and clean-engine-bay builds.
V-2 Si-Trim Supercharger Technology
The V-2 Si-Trim utilizes computer-designed, optimized helical-cut gears with a 3.61:1 internal step-up ratio, delivering quieter operation without sacrificing performance. This advanced gear profile reduces noise while supporting strong airflow and efficiency at higher boost pressures.
The V-2 design allows it to be installed into any existing Vortech V-1, V-2, V-4, or V-7 bracketry, making it a direct bolt-on replacement option for many existing Vortech systems.
Lubrication & Gearcase Design
The V-2 Si-Trim features a ventilated gearcase assembly that eliminates internal pressure buildup commonly associated with non-vented competitive designs. Integrated gearcase baffling ensures proper oil control, while a simple oil slinger design provides consistent lubrication to gears and bearings without the need for a separate shaft or bearing set.
Each supercharger is factory pre-filled with Vortechs proprietary synthetic fluid and includes an integrated dipstick for quick fluid checks, along with a remote fluid drain hose to allow clean, simple fluid changes without removing the supercharger from the vehicle.
Bypass Valve Requirements
- Above 6 PSI: Vortech Standard Bypass Valve or Vortech Maxflow Race Bypass/Blowoff Valve
- Above 10 PSI: Vortech Maxflow Race Bypass/Blowoff Valve, Vortech Mondo Bypass Valve, or Vortech BV57 Valve
Performance Capability
- Maximum Power: Up to 775 HP (modified engines)
- Maximum Boost: 22 PSI
- Maximum Airflow: 1,150 CFM
- Peak Adiabatic Efficiency: 78%
- Internal Step-Up Ratio: 3.61:1
- Maximum Impeller Speed: 52,000 RPM
Performance specifications apply to units equipped with the standard gearcase.
Physical Specifications
- Discharge Outside Diameter: 2.75"
- Discharge Inside Diameter: 2.38"
- Inlet Outside Diameter: 3.5"
- Inducer Diameter: 3.1"
Quick Specs
- Manufacturer: Vortech Superchargers
- Part Number: 2E128-044
- Supercharger Series: V-2
- Trim: Si-Trim
- Rotation: Clockwise (CW)
- Discharge: Curved
- Finish: Black
- Gear Type: Helical-cut gears
- Internal Step-Up Ratio: 3.61:1
Emissions & Legal Notice
- NOT AVAILABLE OR LEGAL FOR SALE IN CALIFORNIA
- For off-road and competition use only
- Installation on emissions-controlled vehicles operated on public roads may violate U.S. federal emissions regulations
Why Buy from Beefcake Racing?
Beefcake Racing is an authorized Vortech Superchargers dealer with extensive experience supporting street, strip, and race builds. We help ensure your V-2 Si-Trim setup is properly matched with the correct bypass valve, pulley combination, and supporting components for reliable performance and long-term durability.
Email: sales@beefcakeracing.com
Phone: 1-855-827-7223
CA Residents: WARNING: Cancer and Reproductive Harm www.P65Warnings.ca.gov
