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Old 10-12-2010, 08:39 AM   #1
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Default T3 60 Trim vs T3 45 Trim....

So in doing some research this morning, I have come to a rather simple question probably, but one that I am not sure of the answer myself nor am I able to find the answer through searching the internet.


I currently have a 45 trim standard T3, with .42 AR compressor housing. I am looking to upgrade to a 60 trim compressor wheel, so I have been searching and came across these measurements vs my own.

T3 60 Trim Wheel-( the one I plan to purchase )
Inducer = 46.48 Exducer = 60.10

And my own wheels measurements-
Inducer = 40.48 Exducer = 60.10

The inlet (not inducer) on my current compressor is 40mm, since the Exducer measures out to be the same between the 2 different wheels, do I really even need to get a bigger housing if the bigger part of the wheel (exducer) is the same size as the 45 trim? Or can I simply just have my .42 AR housing machined at the inlet to accept the 60 trim's bigger inducer? If possible, how would this affect flow if any? If not do I need a ".60 AR" compressor housing?

Sorry if it comes off as noobish, searching for 6.5 hours only got me so far and I called ATP and a turbo repair shop/seller in Texas to not much progress I decided it was time to come here...
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Old 10-12-2010, 08:57 AM   #2
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because the trim is different, the shape of the housing is different. the side profiles of the wheels are not the same. if you try to stuff the 60 trim within the 45 trim housing, it will seize.
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Old 10-12-2010, 09:00 AM   #3
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Ahh ok even with machining it will seize...

So in return can I use a 60 AR housing instead, off another Garrett/AiResearch? (assuming the backing plates and what not match)

edit:I caught a lot of info on the web about people machining housings for other wheels to fit, thats where the idea stemmed from.
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Old 10-12-2010, 10:08 AM   #4
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I bought a "like new" 60 trim housing and wheel on ebay for $100 delivered. And there were others, you just have to keep an eye out for them. But generally they sell together.
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Old 10-12-2010, 10:13 AM   #5
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Quote:
Originally Posted by BoostedTrixx View Post
Ahh ok even with machining it will seize...

You have to machine the curved edge of the housing as well as the inlet to fit the inducers, but yes you can do that.


you don't need to bother with the back-plate, they are all made for 60mm wheels.
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Old 10-13-2010, 11:45 PM   #6
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I may have what you want. I have to find it though.

I have parts and housings left over from my other T3s
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Old 10-14-2010, 12:22 AM   #7
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OK, I should have the housing from my t3 super 60 by Turbonetics. Will that work? Its all shiny too. That adds HP
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Old 10-15-2010, 03:59 AM   #8
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pm'd ^^
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