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Discussion Starter · #1 ·
Well i just traded my friend for his turbo and he didnt know what it was either. I heard you can take off the compressor housing and measure it but how do you measure it? Also how can you tell what trim it is? All i know is it might be a t-66 but it has a .58 exhaust housing on it.
 

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playb0i said:
eh, i guess you could compare it side by side, and see who's bigger.

LOL
lol
 

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spooler21 said:
Well i just traded my friend for his turbo and he didnt know what it was either. I heard you can take off the compressor housing and measure it but how do you measure it? Also how can you tell what trim it is? All i know is it might be a t-66 but it has a .58 exhaust housing on it.
you traded your turbo for his without knowing what his turbo was???
 

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Discussion Starter · #7 ·
Yeah we took the compressor housing off each one and his was 3/4 in. bigger from the way we were measuring it. But i know it wasnt the right way because my turbo was a t60-1 and it measured 3 in. and thats 76mm. I just wanted to know how to measure the wheel and how to tell what trim it is.
 

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Get some calipers and measure the exducer diameter, and the inducer diameter. If it is a T66, then the inducer will measure about 66mm. The exducer would be about 91mm. If it is truly 3/4" bigger than a 60-1 then there is no trim level for it.
 

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Discussion Starter · #9 ·
Well im not sure if its a t66 but thats what the guy said it was when he bought the car. So to find out if it was a t66 i would wrap a measuring tape around the inducer fins?
 

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you dont wrap a measuring tape around the fins, thats measuring circumference, you want to measure diameter
 
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