|
So I decided to look at the graphs a bit more and decided to look specifically at 15psi. All 3 turbos have all points well within the surge line at 3,000RPM and decided to look at what RPM range do the turbos have an efficiency of at least 70%
6258- 3,700-7,500RPM
6758- 4,700-7,500RPM
7163- 5,400-7,500RPM
I also decided to look what efficiency island each turbo was at, at 3,500RPM at 15PSI.
6258- 68%
6758- 61%
7163- 60%
So from this information, is it reasonable to say, all 3 can make 15PSI at 3,500RPM, but due to less efficiency, the air will be hotter for the 6758 and 7163, so at that PSI and revs, the 6258 will make more power. Also, as the 6258 is at or above 70% efficiency for at least 1,000RPM more, can you conclude it will have a wider powerband?
|