The wicked wheels flaw are the really tall blades that make the turbine work harder. Garrett, BorgWarner all spend millions developing compressor technology, and not one of them make wheels with blades that extend like wicked wheel does, theres a reason.
I use billet wheels in my builds also, as well as a 9 blade gt20 wheel and gtb (3rd gen)vanes. GT15-22 all have the same size shaft and use the same compressors. Some have built-in heat shrouds, some are twin ring, itll take em a bit to figure it out. It just seems odd your gonna pay out the butt for industrial to do something thats already done, and refined.
I did the ball bearing disco potato 5 years ago, it made great hp, but sucked for low end torque, so i developed the turbo i build now:
Stock turbine on the left, 9 blade i use on the right.
The last pic is from a customer who had 2 identical crd’s, one with my turbo, one with stock turbo. Mine beat the stocker in every way possible, from a stop, rolling, mpg, cant get any better testing than that. It even was able to develop full boost at 7,000’ elevation where the stock one fell short.
Ive also custom built the bearings in my BB conversion, as well as borrowed some gas turbine technology to add vibration/harmonic dampening to take alot of “interference” out of the bearings. Initial testing has showed ~50% less internal bearing friction compared to garretts stock ball bearings.