1300hp Mazda 13B | PRO-RX8 rotary by Promaz Drag & Track by turboandstance - April 29, 2018April 29, 2018 An evolution over the last couple of years, the Promaz Racing Mazda RX-8 recently ran a personal best pass at the Brisbane Jamboree of 7.41 @ 188mph. Taking a closer look under the skin, the RX-8 is powered by a Promaz 13B Cosmo bridge port race engine that features BilletPro front and rear billet end plates for added strength and durability. A unique feature of these plates is the innovative locking mechanism of the removable cast iron insert. There are many other custom CNC machined parts on this car including the intake plenum and sump just to name a few. Creating and controlling the boost is a large Garrett GTX55 turbocharger and Turbosmart wastegate. Methanol fuel is delivered via a mechanical fuel pump and governed via a FuelTech FT500 computer. Simon shifts gears via a Liberty Equaliser clutchless transmission. The RX-8 is a ¾ chassis that still features fully functioning rear doors. We caught up with the team as they were preparing for Jamboree where the car consistently punched out over 1000hp. Mazda RX-8 by Promaz | ¾ chassis Promaz 13B Cosmo race engine BilletPro front and rear plates Garrett GTX55 turbocharger @ 47psi Promaz plenum, Turbosmart wastegates FuelTech FT500 EFI, methanol fuel Liberty Equaliser 5-speed clutchless gearbox Race weight: 2415Ib / 1092kg Power: 1000+hp | Dynotech hub dyno Best ET: 7.33 @ 191 mph http://www.promaz.com.au Leave a comment