Patent ID: 8322133
Filing Date: 2012-12-04
Classification: F02B,Y02T

Abstract:
1. A modular tuned exhaust pipe coupled to a remote controlled vehicle having a two stroke motor, comprising: a body portion having an exhaust port and an inlet port, a header coupling the body portion to the two stroke motor on the remote controlled vehicle; an end cap at an end of the body portion closest to the exhaust port; a divergent cone section coupled between the header coupling and the body portion; a convergent cone section internally and slidingly mounted within the body portion and having an at least one exhaust hole therein; and an external adjustment screw and the adjustment screw is coupled to the convergent cone section such that turning the adjustment screw moves the convergent cone slidingly in a lateral direction within the body portion relative to the divergent cone section to change the tuned length, the distance between the convergent and divergent cones of the exhaust, and thereby the performance characteristics of said two stroke motor.