800+hp street RX-3 hub dyno

Promaz Automotive has just taken delivery of a brand new state of the art Dynotech hub dyno and what better way to test it out with an 8-second street driven rotary. Hub dyno’s are effectively safer to work around and are also more accurate than a conventional roller dyno. 1972 Mazda RX-3 street car Promaz 13B Bridge port rotary engine … Read More

Mazda RX3 street car | 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

Mazda 1200 13B bridgeport rotary

John’s Mazda 1200 coupe is a thoroughly well restored old school street rotary. The car sees a lift in performance thanks to a Promaz Automotive 13B bridge-port engine package backed by an RX-7 series-4 gearbox making over 200hp to the back wheels. 1970 Mazda 1200 coupe 13B 4-port rotary BP engine by Promaz Weber Performance Carburettor

PRORX-8 ~ 7.88 / 170mph

Our Promaz Automotive Mazda RX-8 13B rotary turbo runs a personal best at Calder Park. This is still a fresh car with only a handful of passes on it.

Promaz Racing at Calder Park

Both from Promaz Automotive, Ross’ street Mazda RX-3 and Simon’s new RX-8. Both cars run 13b single turbo engines. Simon is slowing stepping up the power and now running up near 170 mph

BZJNKI Rotary turbo 323

Andrew’s Mazda 323 runs a personal best pass at the Melbourne Jamboree of 8.95 @ 153mph. The car is powered by a Promaz Racing bridge port turbo 13B rotary engine on E85 with power driven through a modified Top Loader manual gearbox. Mazda 323 Promaz 13B bridge-port turbo rotary engine Garrett GT42R turbo MicroTech EFI, E85 fuel Top Loader gearbox, … Read More

PRORX-8 13B turbo shakedown

We take our RX-8 to the track for its first first full passes at Calder Park. The Mazda is powered by a Promaz 13B turbo engine complete with Borg Warner turbo and MicroTech EFI.

Charles tears up the track!

Charles’ crazy 20B RX-7 is featured in a video from fullBOOST of the cruising sessions from Performance Car Mania held at Winton Raceway.

Mazda 323 13B bridge port turbo

Andrew’s Mazda 323 runs a personal best pass. The car is powered by a Promaz Racing bridge port turbo 13B rotary engine on E85 with power driven through a modified Top Loader manual gearbox. Mazda 323 Promaz 13B bridge-port turbo rotary engine Garrett GT42R turbo MicroTech EFI, E85 fuel Top Loader gearbox, Liberty dog gears

Mazda RX-8 turbo ~ Rotary 13B-RE

A few weeks ago we showed you a wild 20B powered Mazda RX-8 street car built by Promaz Automotive. Well here’s another late model Mazda using and older style rotary engine this time in the way of a 13B twin rotor Cosmo engine. The RE engine as found in the JC Cosmo is similar to that of the Series 6 … Read More