[Kasamoto]

Greetings, i have a question. I have a m54b30 engine and have a m62 easily acessible. I have done the "math" behind the air flow of the SC and how much rpesusre it will make, and it got me to 0.3 bar at full capacity of the SC.
What will be the HP gains with 0.3 bar? (4.3psi)

m62: My engine requires 1050 cc/min, and the SC makes maximum of 14000 cc/min. which makes a pressure ratio of 1.3

m90: I also did the "math" behind the eaton m90 and it makes maximum of 21000cc/min, which will give me 1bar. (ratio of 2)

Everywhere i read a post that includes "math", it makes sense, and everyone agrees on these nimbrs, but manufacturers are using the m62 for even 3.2 liter engines, and m90 for 4.5 liter engines. Alongside with the manufacturers, threads that do not include the "math" behind the pressure and volume, everyone agres that m62 is good for 3l engine, and m90 is an overkill.

So basically posts with math say that the m62 is too small, and the m90 is barely making it, but threads with practical application sy that the m62 is good, and m90 is an overkill.
Where am i wrong? Aint the boosted engines be working at 0.6-1 bar?

A friend of mine has a Mini copper (eaton m45) and has only changed his pulley and works at 1 bar making 220hp.

I feel like i am missing information.