Abstract: Disclosed herein is an intake manifold assembly that comprises a first outer covering, a second outer covering connected to the first outer covering that together define a chamber having an intake port, and a flow channel insert. The second outer covering has an outlet port positioned within its interior surface and the flow channel insert is nestingly connected to the outlet port with the rest of the flow channel insert received within the chamber. The flow channel insert being a single piece that defines a channel having a first end and a second end.

Abstract: Disclosed herein is an intake manifold assembly that comprises a first outer covering, a second outer covering connected to the first outer covering that together define a chamber having an intake port, and a flow channel insert. The second outer covering has an outlet port positioned within its interior surface and the flow channel insert is nestingly connected to the outlet port with the rest of the flow channel insert received within the chamber. The flow channel insert being a single piece that defines a channel having a first end and a second end.

Abstract: A system for controlling turbulence in a combustion engine having a composite upper intake manifold and a cylinder head. The system includes a composite housing, a composite cartridge, a shaft, a radial gasket, a lever arm, and a press in place gasket. The composite housing includes an open first end and an open second end. The open second end defines a first cross-sectional area. The first end is configured to be welded to the composite upper intake manifold and the second end has a gasket groove. The second end is configured to be connected with the cylinder head. The composite cartridge is positioned within and removably joined with the second end of the composite housing. The composite cartridge includes a body, a flap valve, and bushings. The shaft connected to the flap valve within the composite housing. The press in place gasket is positioned within the gasket groove.

Abstract: A system for controlling turbulence in a combustion engine having a composite upper intake manifold and a cylinder head. The system includes a composite housing, a composite cartridge, a shaft, a radial gasket, a lever arm, and a press in place gasket. The composite housing includes an open first end and an open second end. The open second end defines a first cross-sectional area. The first end is configured to be welded to the composite upper intake manifold and the second end has a gasket groove. The second end is configured to be connected with the cylinder head. The composite cartridge is positioned within and removably joined with the second end of the composite housing. The composite cartridge includes a body, a flap valve, and bushings. The shaft connected to the flap valve within the composite housing. The press in place gasket is positioned within the gasket groove.

Abstract: A releasable connection for attaching a cover to a molded intake manifold including a series of projections on the cover received into recesses in a flange molded into the manifold. Tapered recesses in the projections and adjacent sloping surfaces in the flange define opposing spaced surfaces, with a key pin inserted between the opposing surfaces to lock the cover to the flange.