turbo trim?

[88shadowpjct]

i feel dumb asking this, but i feel it is something i should know and i dont. im looking at new turbos (t3/t4 hybrids) and im seeing different "trims" what is this? is it some sort of bore on the inside or what?

[oklamopar]

dont know if this will help. so much info and links it made my brain hurt.
Turbo FAQ: Read Here - Boricua-Racing

[tryingbe]

Trim tells what size the compressor wheel is.

[speeduphoria]

yep theres trim sizes=size/shape of the compressor wheel
stages=size/shape of the turbine wheel
A/R=size/shape/volume of the compressor and turbine housings

[88shadowpjct]

ok thanks.. now i know the important stuff that i should have known a long time ago when i started building the car lol thanks again