Why compare the GT32 with the PT61, they are completely different sizes. The GT32 as stated is the equivalent of the TA49/TE44. I'm running 7.8's in the 1/8 already with the stocker, so why would I want a GT32 to go maybe a tenth or 2 faster.
So, how about the PT61 compared to the GT35 series??
What stall would be needed for the next size up GT turbo since they spool so well?