Jason Calleja’s Mazda RX-3 was powered by a turbo 13B two-rotor connected to a Supra five-speed manual transmission. However he recently realized a dream when he installed a 20B into the sedan. The bridgeport triple-rotor was built by Promaz and features a Garrett GTX42 turbocharger and MicroTech LT16c ECU. The engine makes 565 horsepower on 14 psi of boost and 98 RON fuel. Jason also took the opportunity to replace the five-speed with a Samsonas six-speed sequential transmission.