ProCharger F-1R Upgrade Specs:
Base HP Range of NA Engine: 375-550 HP (Compared to the F-1A Head unit 300-500HP)
Maximum Supercharged HP Rating: 1250 HP (Compared to the F-1A Head unit 1100HP)
Maximum Airflow: 1,700 cfm (Compared to the F-1A Head unit 1,575 cfm)
Maximum Boost: 38 psi
Inlet Diameter: 4.05 inches
Outlet Diameter: 3 inches
Maximum Impeller RPM: 68,000
Internal Step-up Ratio: 5.40:1
Self-Contained Oiling: Yes
Reverse Rotation Available: Yes