Abstract: A supercharger system is disclosed herein having a front end, a rear end, an inlet and an outlet, the system contained within a housing, wherein the supercharger system includes a rotor assembly, and a plurality of intake runners that comprise an interlaced cross-runner pattern, wherein the supercharger system comprises a front drive, front inlet configuration and an inverted orientation.

Abstract: An exhaust muffler (1) invention includes an entry chamber (9), a resonator chamber (15), and a baffle chamber (23) positioned in serial order between an exhaust gas inlet (3) that lets exhaust gas into the entry chamber and an exhaust gas outlet (5) from the baffle chamber that lets the exhaust gas exit to the exterior. A pass-through tube (21) provides an exhaust gas passage extending from the first entry chamber, through the resonator chamber and into the baffle chamber; and a baffle system (2,4,6, 8, 10, 12 & 14) located in the baffle chamber, contains a plurality of baffles positioned between the resonator chamber at one end and said exhaust gas outlet at the other end for reflecting sound admitted into said baffle chamber via said pass-through tube, whereby interference patterns of reflected sound are produced that lessen the intensity of the sound that exits along with exhaust gas from said outlet tube.

Abstract: A tunable nitrous plate assembly for fuel injected 5.0 liter V8 engines contains a metal plate (1) that is sandwiched between the upper and lower manifold members of the engine air intake manifold. The plate contains multiple ports (17) mate with the ports in the lower manifold member and, thereby, lead to individual intake runners of the engine cylinders. Each port includes a nitrous oxide spray conduit (21) overlying a fuel spray conduit (23) with both conduits extending across the port transverse to the longitudinal plate axis. Fittings (22, 20) attached to the plate exterior couple an end of respective spray conduits for fluid communication with appropriate nitrous oxide and fuel supplies. Replaceable calibration jets (45, 46) installed in respective fittings (22, 20) in series with the supply lines are selected so that the horsepower generated by the engine cylinders is balanced.

Abstract: A nitrous plate (1) includes four end-fed nitrous oxide spray conduits (2, 4, 6 & 8) positioned coplanar in the plate passage (21), supported at one end by respective walls (17, 18, 92 & 20) of the plate with closed distal conduit ends positioned near the center (22) of the plate passage. Two conduits (2, 6) are coaxially aligned with their closed ends in confronting relationship across the central axis of the plate passage. The remaining conduits (4, 8) are coaxially aligned with closed ends in confronting relationship across the central axis to the passage and are oriented perpendicular to the other conduits. Four fuel spray conduits are included in a separate plane and are organized in the foregoing way. The distal ends of the spray conduits are mechanically linked together by a junction block (10).

Abstract: The cylinder head for a twin V-twin motorcycle engine contains an intake port entrance lies in a plane oriented at an angle of less than ninety degrees to another plane defined by the center lines to the intake and exhaust valve guides and the entrance is characterized by a rectangular shape that is tilted from the horizontal plane of the head so that one of the three corners to the rectangular shape is lower in vertical position than the other three. The floor, the lower side between the two lower most corners, is oriented perpendicular to the intake valve guide.

Abstract: An air oil separator adapted for attachment to a dry sump type oil pump incorporates a novel centrifuge and air ducting system. The centrifuge is formed of two disks axially spaced on a hollow rotatable shaft with the shaft having small air passages located between the disks that extend radially through to a hollow interior of the shaft. An air duct couples an open end of the centrifuge shaft to an air outlet for exhausting air from the shaft interior to the upper air side of the oil sump. Axially rotating at high speed the centrifuge separates air from inputted oil by throwing the oil to the outer reaches of the housing where the oil exits through an outlet and the separated air is exhausted through the shaft and duct.

Abstract: Greater torque and power are realized in V-twin motorcycle engine with a cylinder head having a combustion chamber that incorporates two flow relief areas, one for each of the intake and exhaust ports, located on opposite right and left sides of the combustion chamber, and flow resist areas about the remaining portions of the respective port's periphery, obstructing gas flow into the flow resist areas. The foregoing arrangement defines a gas reversion path from the exhaust port that zig-zags through the chamber to the intake port, increasing the length of the path and reducing the adverse effect of reversion. A rectangular shaped intake port entrance and an accompanying rectangular shaped manifold passage provide for input of greater volume of combustible gas and a D-shaped exhaust port exit contribute to the effectiveness of the combination.

Abstract: A cylindrical pin couples a driven member, such as a rotor, to a driving shaft by means of axially and angularly aligned cylindrical grooves in the shaft and driven member defining a cylindrical cavity for receiving the pin. The pin fits in the defined cavity and radially bridges the space between the shaft and the driven member to link the two together. The shaft and pin are formed of a metal having a lower thermal coefficient of expansion characteristic than the metal forming the driven member. Torque, applied by the shaft, is applied to the rotor distributed over a portion of the cylindrical side walls of the pin.

Abstract: An exhaust manifold for an engine has sets of branches tuned to the fundamental frequency of exhaust products but with the branch length of the sets different so that the engine speed at which resonance occurs in each set is different. An inlet manifold has runner sets with each set being paired with an exhaust manifold branch set serving the same cylinders and tuned to effect resonance of combustion air in the runners at the same engine speed that resonance occurs in its associated exhaust branches.