help with my turbo

[sLoWnStEaDy]

OK on this AiResearch turbo i got I am trying to figure out exactly what size the turbine is. It has .96 stamped on the inside but it doesnt look that big (compared ot a 1.15 i had it is about half the size) and when i do the math i end up with .68-.72 for the A/R

inside of the turbine:
http://aycu22.webshots.com/image/36141/2002680699535473501_rs.jpg (http://allyoucanupload.webshots.com/v/2002680699535473501)

how to figure out the A/R: NOT MY TURBO PICTURED
http://aycu11.webshots.com/image/37570/2002633849572984518_rs.jpg (http://allyoucanupload.webshots.com/v/2002633849572984518)


i get 7cm for the Radius and 4.9cm for the area of the turbine inlet. doing the math gets me .7 of course that is with a ruler so i can add/subtract a MM or two which gives me from like .68-.72
This is suppose to go on my 3.4L DOHC 24V V6 in my fiero but if it is much to big for that i am going to throw it on the 5.0 in the RX7 and find a different one for the fiero...

[TbTalon94]

Was your other turbo a T4 style? This one you have in the picture looks to be a T3 style. You can tell because on the T4 style the bolt holes are spaced farther apart. A large T3 turbine will look fairly small compared to a large T4 turbine.

[sLoWnStEaDy]

Yes, my old one was a T4. I am at work right now so i cant get an exact measurement but IIRC the flange holes are like 2.75" apart top and bottom and like 3.5" side to side. If that isnt exact it is close... It was on a 1JZ before i got it, he upgraded to a T-70 so i snagged this one up from him

EDIT: finaly home, my guess was pretty close actual measruments are 2.75" and 3.25". Also if it helps any i got some rough measurements on the compressor inducer (55mm, the opening is 56MM so it has to be close) and the turbine exducer (65mm, the opening is 66MM so it has to be close). I am hoping to get a digital caliper soon so i can get some better measurements but those are the best i could get right now with my ruler. There are a couple numbers stamoed into it, 8669 32 (on the turbine mounting flange) 62 6 2 (side of the compressor) 8175 25 (by the compressor outlet)

couple more pics just in case they might help:
http://aycu20.webshots.com/image/38819/2001409744368831170_rs.jpg (http://allyoucanupload.webshots.com/v/2001409744368831170)
http://aycu29.webshots.com/image/38108/2001414238268654122_rs.jpg (http://allyoucanupload.webshots.com/v/2001414238268654122)
http://aycu33.webshots.com/image/38232/2001426806339613976_rs.jpg (http://allyoucanupload.webshots.com/v/2001426806339613976)
http://aycu12.webshots.com/image/39091/2001441292522115643_rs.jpg (http://allyoucanupload.webshots.com/v/2001441292522115643)