Hans Conser wrote:

Lightened Rotor Assembly
RX-8 Renesis Engine

Our RX-8 Lightened Rotor Assemblies are machined lightened using a CNC (computer numerically controlled) mill. These rotors are based on the stock RX-8 rotors and the initial weight of each rotor is approximately 9.2 pounds, and upon completion of the machining process the weight is reduced to approximately 9.0 pounds.

For the RX-8 application, the lightening process removes material from the internal ribbing and bearing support areas. Unlike earlier applications, the configuration of the side exhaust porting on the Renesis engine does not allow material to be removed from the sides of the rotors. To view a larger photo of a finished rotor assembly, click here.

The Racing Beat machining process involves the installation of a snap ring between the rotor gear and the basic rotor to prevent the rotor gear from working away from the basic rotor at higher RPM. The ring gear is removed using a hydraulic press, and then an indexing groove is cut into both the rotor and the ring gear. A snap-ring is placed into the groove on the ring gear, and the assembly is placed into the rotor. Once the snap-ring expands into the groove on the rotor, the ring gear is permanently seated onto the rotor.

Dave Lemon is using these and he shifts at 10,300 RPM.


Paul Lamar

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