Supercharger Identification
All PSI Screw Supercharger have a 3 digit number that identify the rotor diameter in millimeters 200MM ,206MM ,210MM
210C Supercharger
206D Supercharger
200H (highspeed)Supercharger
(no longer in production, rotors can not be replaced!)
200C (cast) Supercharger
(no longer in production, rotors can not be replaced!)
This is the original PSI screw blower pre 1991 due to the cast male rotor (see right picture with smooth balance plug) this model can NOT be SFI certified
Short shaft VS Long shaft rotors and housings
All 200 series superchargers are short shaft rotors and housings.
206 series superchargers came in both long and short shaft configurations
All 206B's are short shafts (both highspeed rotors and billet rotors were produce, highspeed rotors no longer availible)
206D models were originally short shaft rotors (single front bearing),
Long shaft rotors were later developed and continued using the "D" housing (dual front bearings)
The 206D (long shaft) is still in production today
All 210 series superchargers are long shaft rotors and housings
Short shaft rotors have a single front bearing and long shaft rotors have two front bearings
206B 206D (long shaft)
Both the 206B and the 206D (long shaft) use the same gears, drive flange, and quillshaft
Both the 206B and the 206D (long shaft) use the same gears, drive flange, and quillshaft
206D (short shaft) housing and gears
The short shaft 206D uses a unique drive flange, longer quillshaft. ( gears no longer produced)
The short shaft 206D uses a unique drive flange, longer quillshaft. ( gears no longer produced)
Drive flange and quillshaft for 206B, 206D Long shaft and 210C (left) Drive flange and quillshaft for short shaft 206D (right)
Top view
Short shaft "B" housing Long shaft housing 206D , 210C (short shaft 206D looks the same from this view)
Short shaft "B" housing Long shaft housing 206D , 210C (short shaft 206D looks the same from this view)
