Vortech V-3 Si-Trim Heritage Series Supercharger Head Unit

The Vortech V-3 Si-Trim Heritage Series pairs the original 1990 V-1 gearset with modern compressor efficiency and a self-contained lubrication system. Built for modified street and strip engines, it includes an attached oil drain extension so the head unit can be serviced without removing it.

Choose from nine offered configurations: CW rotation with straight or curved discharge, or CCW rotation with straight discharge, each in satin, black or polished finish. This is the Heritage Series model, distinct from the standard V-3 Si-Trim.

Manufacturer-rated specifications

• Internal step-up ratio: 3.5:1
• Maximum speed: 52,000 RPM
• Maximum boost: 22 PSI
• Maximum airflow: 1,150 CFM
• Power capability: up to 775 HP on modified vehicles
• Peak efficiency: 78%

These specifications apply to units equipped with the standard gearcase. They describe compressor capability, not guaranteed engine output or power gains. Results depend on the engine, supporting components, drive system and tuning.

Dimensions

• Discharge OD: 2.75 inches
• Discharge ID: 2.38 inches
• Inlet OD: 3.5 inches
• Inducer diameter: 3.1 inches

Supercharger head unit, not a complete vehicle-specific installation kit. Confirm mounting compatibility, rotation, discharge routing and supporting hardware for your application before ordering.

Photo note: All four supplier images are provided as representative views. The curved-discharge image uses a Ti-Trim filename on the supplier site; it is not confirmation that this Si-Trim listing includes a Ti-Trim unit. Actual appearance varies by configuration.