In the current state, the car has around 230whp and is, at least to this point, reliable even under heavy use. Octane requirement is 95 RON / 91 AKI, this seems reasonable for 9.5:1 and 0.6 bar (9 psi). The intake air temperature is only 10 K above ambient temperature which leads to the conclusion that the current setup is somewhat efficient.
The goal for the next stage should be a significant gain in power while maintaining reliability and practicability.
As one can see, the airflow of the supercharger at reasonable efficiency (~0.65) is around 0.36kg/s.
In theory, this should lead to at least 360whp. Previous archivements were 302whp @ 6.74krpm by bigb5031, 93krpm @ supercharger. Supportive mods were I/H/E and mild head work, stock 9.5:1 compression, 98 RON / 93 AKI.
315whp @ 7.317krpm by trackdogracing, 100krpm @ supercharger, I/H/E, E85.
324whp @ ~7.3krpm by kraftwerks, 100krpm @ supercharger, mods unknown.