Previously on the RX-7 Spirit R build. We caught up with Promaz Automotive who had stripped the 13B engine, machined and ported it and then reassembled it for a new bridge-port pulse. …
Mazda RX7 Spirit R build ep 01
View Post3-rotor Datsun Ute with a twist
Long time rotary enthusiast Frank Cannistra shows us his latest build at the Sydney Jamboree. The 20B 3-rotor powered Datsun Ute features a well thought out rear mount turbo system. Frank also …
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 …
Rotary Drag Racing – RAW SOUNDS
It’s been a while since we uploaded any drag racing footage, here’s a little that we captured before the world stopped. Feature Mazda rotary 13B and 20B turbo powered compacts from Sydney …
Inside Sport Compact Drag Racing in Florida | A fullBOOST feature
As long time fans of Sport Compact style drag racing, we have always wanted to head over to stateside Florida to attend the annual World Sport Compact Challenge held at Orlando Speed …
Easy DIY Horsepower gains from heat management
In this episode of Tech Tuesday we take a look at some easy ways you can reducing under bonnet engine bay temperature. Special thanks to DCI Performance If you’d like to be …
Unbreakable rotary engine apex seals explained
Are apex seals the kryptonite of the Mazda Rotary engine? Seal integrity and coatings have come a long way in the last decade. Special thanks to South Coast Rotary and Power Seals …
Fabrication time | BACKYARD MECHANICS
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 …
How to change a tyre / tire at home | BACKYARD MECHANICS
Ever wondered how you can change a tyre on a wheel at home when your auto shop is closed? Well check out this video so you can be your very own Backyard …