Stories
| Title | Date | Excerpt |
|---|---|---|
| Reading Spark Plugs on a Rotary Engine | Spark plugs can reveal far more than whether an RX-7 starts cleanly. Their colour, surface texture, and deposits provide clues about mixture strength, ignition… | |
| Wideband O2 Sensor Installation And Tuning For The RX-7 | A wideband oxygen sensor is one of the most useful tools for understanding combustion in a Mazda RX-7. Unlike a narrowband sensor, which is mainly designed to… | |
| Setting up MAP sensor boost control on a rotary engine | A MAP sensor-based boost control system gives the ECU a direct view of intake-manifold pressure, allowing boost to be monitored and managed with greater… | |
| Choosing Fuel Injectors For Turbocharged Rotary Builds | Injector selection sets the ceiling for a turbo rotary engine long before the dyno operator reaches the final boost target. A 13B or 20B can make impressive… | |
| Basic ignition timing maps for a street ported 13B-REW | A street-ported 13B-REW needs a timing strategy that balances response, exhaust temperature, fuel quality and knock resistance. Porting changes how the engine… | |
| PowerFC, Haltech Or Adaptronic For Your RX-7 | Choosing an engine management system for an RX-7 involves more than comparing features on a specification sheet. The best ECU depends on the rotary engine’s… | |
| How to Use the Apex’i PowerFC Commander for Real-Time Monitoring | The Apex’i PowerFC Commander gives RX-7 owners a practical window into what the ECU is doing while the engine runs. Rather than relying on guesswork, you can… | |
| PowerFC Tuning Parameters For A Reliable Rotary Engine | PowerFC tuning parameters give an RX-7 owner direct control over fuel delivery and ignition behaviour, but each value affects several others. Injection timing,… | |
| Apex'i PowerFC overview and basic 13B-REW setup | The Apex'i PowerFC has become a mainstay in Australian RX-7 workshops, sitting in many tuned FD3S cockpits as the go-to aftermarket ECU for the 13B-REW… | |
| Why RX-7 Engines Sputter in Hot Weather and How to Fix It | An RX-7 that runs cleanly on a cool morning can cough, hesitate or fall flat once the temperature climbs. Rotary engines are especially sensitive to heat… |