This is the specs of a stock Syclone turbo compressor & turbine.
They are on the small side IMO
The engine is a 262 CI gets full boost ,when rolling into the throttle (14 PSI) by 2000 RPM,, 2100 RPM stall converter.

Turbine housing:
8 cm2 = 0.57 A/R
Compressor housing is a .60 I believe.


Compressor Wheel
48.3 mm / 68 mm(Inducer / Exducer)
Turbine Wheel
55.3 mm / 65 mm(Inducer / Exducer)

MBHD

12 port SDS EFI