Quote:
Originally Posted by elias_799  on a na motor you want a little bit of back pressure. |
This is incorrect. Backpressure RESISTS the flow of air through the engine, and we all want good airflow through our engines, right?
If your statement was true, we would want a little restriction in the intake as well...
What you may be confused about is backpressure v. exhaust pulse tuning.
Would you say the loss of torque from running open headers MAY be due to the shorter exhaust having a higher resonant frequency instead of not having any backpressure?
Think about that and get back to me, because I might be full of shit...