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Which turbine size for gtx3071r?
So I was fairly well getting settled on a gtx2867r 0.86 a/r until I had a closer look at its compressor map, compared with a gtx3071r. The 3071r at 14psi and 40lbs airflow sits in a much better efficiency island.
What I want to know, is how to go about choosing the turbine size for the 3071r? There are three different sizes in v band housings. .63, .86, and 1.02.
I had pretty much decided on the 2867r with the .86, but I understand that its a ratio not necessarily a size/rating, so a .86 turbine in a 3071r is not the same?
Any help/tips on turbine sizing would be great. Cheers
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