MENTAL 20B rotary street RX-3 | PAC275 In Drag, Video by fullboostNovember 13, 2016 Andrew Zada’s absolutely mental little RX-3 street car runs a personal best pass at the Melbourne Jamboree. The Mazda is powered by a PAC Performance 20B turbocharged rotary engine running on E85 fuel and on MT 275 street radial tyres.