Originally posted by mamisano:
Please don't correlate more boost = more HP. More boost does = more backpressure.
Regards,
A turbo's CFM rate is directly related to it's psi level. (boost) (Why turbos are rated like: TD-05H-20G ~ 650CFM@15psi)
Thereby when lowering the boost achieved the turbo's CFM rate drops as well.
I never made mention of horsepower anywhere.
However. If you'd like to...
Set engine makes 300HP at 6psi.
Same said engine will make more horsepower at a higher boost level.
Now a different engine at 4psi might make 400HP. But that's not the same engine (or one with different heads)
more boost = greater cfm capability = greater power achievable
