While we often film cars on the dyno we thought we’d take a closer look at what really goes on before your car is power tuned. Promaz shows us their processes and …
Billet 4-rotor for Mad Mike Whiddett
View PostBuilding a 1500hp Billet 20B 3-rotor
Its not often we get to film a Mazda rotary engine on an engine dyno. This 20B 3-rotor engine built by Promaz Automotive was setup to be a responsive allrounder to be …
The Ultimate Mazda RX-4 street car
A great example of a modified and street driven Mazda RX-4, Dunch’s coupe is powered by a Promaz 20B 3-rotor billet rotary engine boosted by a Garrett GTX47 turbo, FuelTech EFI and …
The Ultimate Rotary engine – BILLET 4-Rotor
Perhaps one of the most sought after Japanese engines of all time, the Mazda 4-rotor isn’t even a production rotary engine. Mazda built them as a race only application in 13J and …
Building a 1500hp Billet 20B 3-rotor
For over 20 years, Australian Mazda performance power house Promaz, has specialised in everything rotary engine powered. From mild street engines to utterly wild race applications, Promaz also carries out complete driveline …