That is good information disco but none of it really will make any sense to the end user. They simply don't need to know that so it's not really important.
I have already spoken to this person about the various options for the power goal he has.
For a turbo to spool up the same response as a GT35R with a 0.82 rear and make the same or more power than a T04Z, I don't know why anyone would ever consider a GT35R ever again. They are also the same price
We have done nearly a dozen of these GT3788's now on all different setups inc 1JZ, RB26, 26/30, 25/30, RB25 and XR6 4.0L and they just hammer everything else out of the water.
They are a bit of a fall over in power in the top end when pushed but if you use the 0.99 housing they will go further, especially on a 3.0L bottom end like this guy has