It's hard to not be skeptical when someone tries to use full scale engine technology on something 100th the size. Unfortunately, not everything scales down proportionately and the fit/tolerance level must increase substantially because the losses (friction) are realized so much quicker. I'd shoot a guess the turbocharger must be fitted such that there is a tolerance level of .0001" or better. Perhaps better than that. Roller bearings will skid; phosphor bronze bushings would suit better. The RB Innovations gimmick supercharger has a single radial ball bearing. Hardly suited for the application!

The poor OP is gonna find it hard to realize power gains due to not having a dyno of his own and anyone who does likely won't test the engine.