Patent ID: 7073473

Claim:
A tunable intake manifold for directing a flow of air between a plenum and an internal combustion engine, the tunable intake manifold comprising: a manifold housing defining an interior extending between a receiving end and a transmitting end, the manifold housing having a runner wall extending through the interior thereof; a slider comprising a slider wall having an angled portion separated from a primary portion by a curved portion, the slider wall extending through the interior of the manifold housing, the slider wall cooperating with the runner wall to define a runner having a defined cross sectional area for transporting the flow of air therethrough, the slider slidably engaged with the manifold housing for moving the slider wall relative to the runner wall to selectively change the defined cross sectional area of the runner while maintaining said runner at a fixed length, such that the volume of air passing therethrough changes with the movement of the slider, and wherein the angled portion of the slider travels parallel to at least a portion of the runner wall adjacent a transmitting end of the runner.