The topic is about ram air. I believe I said that anumber of times.

But, 1) we must talk about the physics of it, hence the references to known science ad known applications and
2) we must talk about the entire intake system because this is a dynamic process. It does no occur, unrelated, in one specific point.

Unlike a super charger which can deliver compressed air with the vehicle at rest or Turbo supplied compressed air which is delivered with the engine ususally over 3K rpm's, the ram air involves the movement of the vehicle through the atmosphere. Since the process of the first two involves air flow pressure and properties beyond the throttle body, ram air discussion must do so as well.

Therefore we cannot limit our study to the inlet pipe and stop at the throttle body. After all, it is just a metering valve. The "work" happens in the cylinders.

And we cannot forget that, at best, the ram air will assist with any significance only with sufficient speed of the vehicle over the ground. So with the exception of the top fuel racers, funny cars, and the egos of some fartcanned Honda street racers, there is no reasonably useful assist for 1/4 mile times.

Ram scoops do look really cool though.


roadster with a stick