I previously had a COMP turbo , ball bearing, water cooled, 80mm compressor wheel with 79 straight cut exhaust wheel, with a 0.96 undivided housing. The compressor housing of the comp turbo is smaller. It spooled up dang fast, but for 80mm compressor and for what I am looking for, it just didn't seem to match my combo.
I drove my G-ride a good bit the other night. I was actually impressed with how quickly this turbo come up on boost. I feel real decent about the turbo at the moment. That being said, I need to get to the track where I can get some good data logs that will allow a proper quantitative comparison of spool up and performance. It is real humid in south MS in August, and I don't like beating the car up in this poor air, so I am planning on many September track outings. For now, I just have my seat-of-pants reaction which is impressed for sure.