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Fabrication time | BACKYARD MECHANICS

In Tech by fullboost

Switching from a bridge-port engine to a Semi-PP 13B means we need to make a few fabrication changes under the bonnet of our Project Redline Mazda 626 13B turbo rotary. If you’d …

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How Rotary engine porting works

In Tech by fullboost

When it comes to rotary engines, although they may all look quite similar, inside they can be quite different. In this video we break down some of the different aspects of porting …

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Rotary Heaven | Inside Promaz Racing

In Feature by fullboost

Well known Australian Mazda rotary engine performance specialist Promaz Automotive recently celebrated 20 years of business so we thought it would be a good opportunity to catch up with the team for …