procharger f2 head unit 

The ProCharger F-2 features a larger, 10.5-inch volute diameter and provides a significant increase in airflow when compared with the F-1D/F-1/F-1A and F-1C/F-1R superchargers. Considered by many to be the ideal combination of small size and high performance, the F-2 retains all the F-Series design advantages, including self-contained oiling, the patented, ultra-high speed compound bearing assembly, precision ground steel gears and can support up to 1,600 horsepower.  If you're looking to extract the most from your combination, the optional PRO-VOLUTE upgrade can bring this already-stout blower to producing over 2000+ hp!  

ProCharger F-2 Specs:
-Base HP Range of NA Engine: 425-600 HP
-Maximum Supercharged HP Rating: 1,600 HP
-Maximum Airflow: 2,700 cfm
-Maximum Boost: 38 psi
-Inlet Diameter: 4.5 inches
-Outlet Diameter: 3.5 inches
-Maximum Impeller RPM: 65,000
-Internal Step-up Ratio: 5.40:1
-Self-Contained Oiling: Yes
-Reverse Rotation Available: Yes

Shown with PRO-VOLUTE upgrades.