garrett turbo identification?

[Nasty irocz]

garrett turbo 1.JPGgarrett turbo 2.JPGgarrett turbo 3.JPGgarrett turbo 4.JPGi was wondering if anyone can help me out i have this garrett here and i dont know what to measure on it to find out what size it is. There is no identification tag on it.

[DETROITMUSCLE]

the best way to get the dimensions for the wheels is to disassemble the turbo and measure via the silver headed bolts seen in the last pic. I would be willing to bet Garrett themselves could tell you a good deal just by the pics though. Do you know if its a T3 or T4 flange? the A/R is cast on there for the compressor and turbine. How big is the turbine v-band?

[Nasty irocz]

turbo flange.JPG

this is what it looks like im not 100% on flange differences i do know this is the more common style from what ive seen. and it is 4 inches from outside to outside on the 1.24 a/r on the flange end the hot side right?

Also what bolts are you talkin about measure and measure them to get what exactly?

[DETROITMUSCLE]

looks like a divided T4 flange and yes the hot or turbine side has an A/R of 1.24

[Nasty irocz]

So what bolts are the ones i need to measure to get the mm of the turbo?

[DETROITMUSCLE]

So what bolts are the ones i need to measure to get the mm of the turbo?

you need to take off the bolts and get the covers off in order to measure the wheels correctly. You will need a set of calipers to measure with. If you haven't taken one apart before and are nervous I'd just email garrett or check their site. They show what the wheel dimensions mean and how they are measured.

[Nasty irocz]

ok i have taken it apart before and measured the wheels only at the bottom though and they were 76mm and those conversions they give you are kinda confusing i suck at math lol

[DETROITMUSCLE]

measure at the bottom of the wheel and at the top, these are inducer and exducer dimensions. you should have one of each for the turbine side and one of each for the compressor side.

[Nasty irocz]

ok ill do that and see what i get