The RB25DET and RB26DETT are awesome motors for their time period. With a single turbo setup, you can easily make nice power and have close to stock spool characteristics. I am not a fan of the SR20DET, but I had a CA18DET and felt that it was not an inferior motor in comparison. I felt that the rocker arm setup in the SR was kinda crappy, but can be corrected with the proper upgrade parts.
I'll be watching dude.........