So I was doin a lil pokin around and was checkin out stuff that I could never afford.
NEW ProCharger F-4 Supercharger: specifications
Volute Diameter: 16-inches
Max HP: 3,200+ HP
Base NA HP: 900-1,400 HP
Max Flow: 5,400 CFM
Max Boost: 45 PSI
Inlet Hose Dia: 7-inches
Inducer Dia: 6.32-inches
Exducer Dia: 8.89-inches
Outlet Hose Dia: 5-inches
Outlet ID: 4.26-inches
Max Impeller RPM: 55,000 RPM
Internal Step-Up Ratio: 5.63:1
Reverse Rotation Available: Yes
Self-Contained: Yes
http://www.youtube.com/watch?v=hPVJUCAjAT8
this vid gives a better view of the size of this monster!