I have replaced the stock K03 with a modified turbo (K03/K04):

COMPRESSOR WHEEL
Inducer: 41.0 mm
Exducer: 54.0 mm
Tip height: 5.6 mm
Blades: 6 double,staged, extended tip

TURBINE WHEELInducer: 44.5 mm
Exducer: 40.44 mm
Blades: 12
10 degree clip

Compressor housing shape-matched to larger compressor wheel and blade shape.
Compressor outlet flow optimized.
Turbine inlet flow optimized.
Calibrated waste gate actuator.

Yesterday, I pulled WOT runs and recorded the boost pressure over RPM. The tune is still the chipped TAP ("+50HP, 12.5 psi"); other mods see signature.

What can be read from the boost curve?
- turbo behavior
- turbo shortcomings (turbine, compressor)
- estimated power/torque
- expected changes from FMIC plus GIAC PF16 tune
- what to do next (FMIC is on the way)

 

bigger injectors

 

Why larger injectors? Is there something in the data that indicates that?