The present invention relates to a system for improving the performance of a rotary engine comprising at least one of a piston having at least one piston vane configured to rotate. A peddle block is positioned in the pathway of the piston vane, wherein as the piston vane approaches the peddle block a secondary exhaust pressure increases against the piston vane surface, the secondary exhaust pressure, in part, causes the piston vane to rotate and self-align for a subsequent cycle. A variable orifice secondary exhaust port selectively vents at least a portion of the secondary exhaust pressure, away from the piston vane setting an optimal rotational speed of the piston vane, improving performance of the rotary engine. Other exemplary embodiments include turbo-charging the rotary engine by increasing the secondary exhaust pressure, increasing the piston vane rotation, and increasing the amount of secondary exhaust pressure that is recirculated.