Another "what about thread" = Turbonetics To4e

Probably going to need more info before anyone can help you. The To4e (or T04r) is a frame size, and while the hot and cold a/r ratios sound ok to me, you really need to know what compressor and turbine wheels are in it. Without that you really can't tell much.

Kind of like asking "how fast should my Duster go", without telling anyone what size motor.