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.....I'm assuming that as the volume of air going through the compressor side goes up (with larger housings / turbos), that the pressure required to feed the engine to 500 will go down... as pressor requirement goes down and volume goes up... AITs come down.
+ this sounds good to me. I do wish I had the 700(T28) turbos. Actually, I have a spare set of T25's so I'm pretty set on these for a while.
Also, I would assume on a side by side efficiency comparison that the bigger turbos well be more efficient and run an amount cooler.