Compressor Trim for stock turbos

[Dave]

Does anyone know where I can find information regarding what compressor
trims are found on stock turbos for various auto manufacturers. I am looking
for a turbo charger data base that will list what cars came with what turbos
(trim and a/r).

Also ....Is there any visual way to tell what trim wheel a turbo has? I know
the A/R's are stamped on the housings, but is there any way to tell what
trim the wheel is?
-dave