Stories
| Title | Date | Excerpt |
|---|---|---|
| Repairing FC3S Turbo II wiring harness common failure points | Mazda's FC3S Turbo II arrived in Australia as a right-hand-drive legend, and surviving chassis in Sydney, Melbourne, and Brisbane workshops carry the scars of… | |
| FD3S Electrical Essentials: Load Shedding and Relay Service | The third-generation RX-7 hides an unusually clever electrical network behind its simplified dashboard. Beneath the two-seat cabin and the rotary's appetite… | |
| Where to Find OEM-Spec Wiring Diagrams for the RX-7 | Diagnosing electrical gremlins in an FD3S or meticulously rewiring a classic SA22C requires factory-accurate documentation. Generic sketches circulating online… | |
| Factory service manual differences across FD3S, FC3S, and SA22C RX-7s | A factory service manual is the single most useful document you can own for a Mazda rotary. It contains torque values, diagnostic flowcharts, exploded… | |
| How to plumb surge tanks and swirl pots for the RX-7 | Fuel starvation can appear suddenly in an RX-7. The engine may run cleanly on the street, then hesitate through a long right-hander, a steep corner, or a… | |
| Dual Fuel Pump Setup For High-Horsepower Rotary Engines | A high-output 13B or 20B rotary engine can outgrow a single fuel pump well before the dyno sheet reveals an obvious problem. Increased boost, larger injectors,… | |
| Stock FD3S Fuel System Components, Flow Rates and Upgrades | The FD3S Mazda RX-7 uses a compact but capable fuel system designed around the 13B-REW sequential twin-turbo engine. Its main parts are familiar to most rotary… | |
| 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… |