How to build a tuner car 20 B rotary RX8 by Promaz

Although a very well balanced car, the Mazda RX8 always lacked a little go in the horsepower department compared to the older RX7 it replaced. Peter s 2009 GT spec street RX8 is a great example of tuner build done well. Rather than persist with the factory 13B 2rotor Renesis engine the Promaz team has installed a 20B 3rotor engine using a turbo race port. This wasn t a case of just dropping it in and starting the key. Fitting the engine is a Promaz bolt in front engine cross member. There are also nu br, br,