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Flat Shifting Mazda RX-4 13B turbo

In Drag, Video by fullboost

We spotted Ryan’s Mazda RX-4 at a recent street test session at Calder Park. The car features a Promaz 13B bridge port rotary engine, Garrett GTX42R turbocharger, E85 fuel and a Samsonas …

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Promaz @ Jamboree

In Drag, Video by fullboost

Specialising with Mazda rotaries, Promaz Automotive represented at this year’s Melbourne Jamboree and fielded a strong turnout of customers cars, both in Street compact and Street 289 classes. www.PROMAZ.com.au

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Mazda 1200 13B bridgeport rotary

In Dyno, Video by fullboost

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 …