0.94L blower does seem a little small, but I assume we are talking less than 8psi in this application.
I used a 1.2L whipple on my 4AGZE, back in the day (on a mk1 mr2), and stock was also ~1.2L. This was on a 1.6L engine, but running around 14-16psi.
They are most likely using this blower:
http://www.sprintex.com.au/sprintex/...gers/#tabs-0-1
At the max speed of 15000 (~2x engine speed), this SC could make around 1 bar (nearly 15psi) of boost, depending on the VE of the engine and some other factors. Seems like a good size to me.
My main question.. what about CARB? Any plans??