Editor's Note: As inanimate as intake manifolds may appear, they provide a path to both major and minor on-track power gains. Selection is one thing; "tuning" them to specific applications is a blend ...

Engine science isn’t quite a lost art, but it’s something that is much more understood than it used to be. Now, engines are incredibly talented at everything thanks to innovations in combustion ...

For example, testing demonstrated a clear 175-rpm torque peak shift for each 25mm change in intake runner length. With a stock baseline runner length of 275 mm, engineers went to both extremes of the ...