Inside a 10-second 13B rotary street Mazda 808 wagon

Check out this great feature on Marcos’ Mazda 808 wagon by MSCN Melbourne. Now powered by a Promaz 13B turbo rotary engine, this mild mannered street car is a great example of a not going overboard in any one area where street driving comes first to racing second.   

JAP-808 into the tens

Marcos’ Mazda at Calder Park, the wagon had run a best quarter mile time of 11.1 thanks to a turbocharged 13B rotary import engine. Since then Marcos has upgraded the 13B to a later model and more durable S6 spec engine rebuilt by Promaz. Still using the same Garrett turbo and on pump unleaded, a slight boost increase has seen … Read More

13B turbo Datsun street Ute

Matty Lud’s street driven Datsun 1200 competing at the Australian Nationals at Calder Park. The Datsun is powered by a Promaz 13B bridge port rotary engine and garrett turbocharger with power shifting through a modified Mazda gearbox. The Ute had run a best of nine forty so Matt was looking to improve on that. 1978 Datsun 1200 Ute Australian Nationals … Read More

Sequential gearbox upgrade

Ross’ Mazda RX-3 street car has dipped into the 8-second zone previously, but in order to improve consistency and reliability, Ross has recently made the switch to a Samsonas 6-speed sequential gearbox. With no cutting of the factory trans tunnel, the box has been adapted using our new to market light weight billet CNC bell-housing which is manufactured in house. … Read More

13B and 20B RX-8s

Although a very well balanced car, the Mazda RX8 always lacked a little go in the horsepower department compared to the older RX-7 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 2-rotor Renesis engine the Promaz team has installed a 20B 3-rotor engine using … Read More

Sound of the 20B Rotary Engine ~ Mazda RX-7

Charles’ wild Mazda RX-7 tearing it up at the track! Power comes from a Promaz bridge ported 20B triple rotor engine and boosted by a Garrett GTX42R turbo running on methanol fuel and backed by a Jerico 5-speed gearbox. Easter Car Mania # 2 ~ Winton Motor Raceway, Australia April 4-6th 2015