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 PostThe 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 …