Back Pressure??
Originally Posted by Project_ITR
actually back pressure doesn't cause pressure loss...it just so happens that under the same conditions that u lose back pressure, u lose low end power...but the loss of back pressure isn't what's causing it. they just happen to both be side effects of open exhaust that occur at the same time, but they dont cause each other.
Originally Posted by UCF Accord
how can you prove one doesn't cause the other if they both occur every time?
there is a third independent variable... ie, if you up the comp ratio you might see a change in backpressure as well as a direct change in power
:edit:
but i'm still not sure


