Originally Posted by vasillalov
Credit is due where credit is due: Very nicely done! Congrats!
Question: why is it that the torque remains constant? I mean, it is good that there is no torque drop-off, but there is no torque increase either.
There is a slight upward slope from 5500RPM and up. The efficiency of the engine is not geared toward high RPMs, so the breathing is not conducive to upward sloping torque curves. The boost level climbs to compensate, and it looks like there is indeed a slight increase in torque. This would be easier to accomplish with different cams, too.
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