Modular supercharger adapter system for automotive applications

A modular supercharger adapter system for automotive engine platforms, comprising:

• a lower manifold adapter positioned entirely above an engine component and entirely below a supercharger assembly, the lower manifold adapter comprising:
• an engine-side flange machined to form platform-specific engine fitment features for a selected engine platform;
• a supercharger-side flange machined to form platform-specific supercharger fitment features for a selected supercharger, wherein a lateral surface area of the supercharger-side flange is greater than a lateral surface area of the engine-side flange;
• and
• a cast body defining a plenum volume contained within the cast body and between the engine-side flange and the supercharger-side flange, wherein the cast body comprises at least one trapezoidal cross-sectional area;
• and
• an adapter plate positioned entirely above the lower manifold adapter and configured to mount the supercharger assembly to the lower manifold adapter, wherein the adapter plate comprises a plurality of fastener openings arranged in a rectangular array and a central aperture for allowing air to pass through the supercharger assembly into the plenum volume.

A method of manufacturing a multi-fit supercharger manifold assembly, comprising:

• forming a lower manifold adapter, comprising:
• providing a lower manifold adapter blank comprising a cast body that defines a plenum volume contained within the cast body, the lower manifold adapter blank further comprising a supercharger-side machinable interface region and an engine-side machinable interface region;
• performing a first machining operation on the engine-side interface region to form a functional datum feature;
• positioning the lower manifold adapter blank on a fixture using at least the functional datum feature;
• and
• performing a second machining operation on the engine-side interface region to form a bottom flange, wherein the bottom flange comprises platform-specific engine fitment features, the platform-specific engine fitment features including at least a plurality of openings that align with a plurality of intake ports of a cylinder head of an engine component;
• providing a supercharger adapter plate, wherein the supercharger adapter plate comprises a fastener pattern including a plurality of fastener openings;
• and
• attaching the supercharger adapter plate to the lower manifold adapter using the plurality of fastener openings.