Turbocharger Difference?

[race_to_live]

can someone please tell me the difference in these 3 turbos.

IHI-VF34 Roller Bearing Turbocharger
IHI-VF22 Roller Bearing Turbocharger
IHI-VF36 Roller Bearing Twin-Scroll Turbocharger

Questions such as...what psi output, full boost at what rmp, and what is "twin-scroll"?

[BSOD2600]

This will give you a headstart: http://www.stealth316.com/2-3s-compflowmaps.htm

There is also a thread on nasioc with some detailed info bout the various VF* turbos.

[dscoobydoo]

Simply put ( in case you are lazy LMAO)

VF-36/37 are the twin scroll turbos ( meaning they separate the exhaust channels into two paths "twin scrolls" ) Standard turbos use one path for the exhaust gases.

The VF-22 is an early large turbo, roller bearing. ( GC chassis STI/WRX coupe/sedan)

The VF-34 is a later series Ball bearing turbo. ( Sti GDA/GDB sedan)