How to measure turbo size

flcrawler

New member
When you see 66/71/14 what side of the wheel is that? I have a turbo I want to use for a twin set but don't know if it will be to big. It measures out on the compressor side 84/123 and 107 on the small side of the turbine with a 1.18 a/r.Don't know what turbo it is except it came off a cummins in a loader.
 
66- Is the smaller part of the compressor wheel, 71- Is the turbine wheel, 14cm- Is the turbine housing area.
 
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