Stories
| Title | Date | Excerpt |
|---|---|---|
| Torsen vs clutch-type LSD for the FC3S RX-7 | Both a Torsen and a clutch-type limited-slip differential can improve an FC3S’s traction and corner exit compared with an open rear differential. They operate… | |
| Installing a Lightweight Flywheel on a 13B | A lightweight flywheel on a 13B reduces rotational inertia, letting an RX-7 rev more freely and change gears with less engine braking. It also alters clutch… | |
| Build a clutch that can hold a 400hp rotary | A 400hp rotary has enough output to expose weak clutch choices, but horsepower alone cannot size the correct assembly. Engine torque, flywheel design,… | |
| FD3S 5-Speed Transmission: Ratios, Strengths, and Known Weak Points | The FD3S Mazda RX-7, produced from 1992 to 2002, remains a beloved icon among Australian rotary enthusiasts. Launched in an era when European flagships still… | |
| Choosing the Right Transmission for Your FD3S | An FD3S transmission choice affects shift feel, cruising speed, reliability, and future repairability. A factory five-speed manual is direct and engaging,… | |
| Oil cooler upgrades for track-ready RX-7s | A track-focused RX-7 places more sustained heat into its engine oil than a road-biased car, especially as cornering loads raise sump and bearing temperatures.… | |
| The factory 13B-REW alternator bracket kit: what you need | The factory alternator bracket on a 13B-REW is one of those parts nobody thinks about until it fails. Whether rebuilding a sequential twin-turbo engine bay,… | |
| Measuring Rotor Clearances: Side, Apex, and Endplay on Mazda RX-7 Engines | Accurate clearance measurement is the foundation of any rotary engine build, whether you're refreshing a stocker or chasing serious power on a 13B-REW. The… | |
| Assembling a rotary engine with new apex seals: gap and fitment | Rebuilding a 13B or 20B rotary at home is a precise exercise where small clearances decide whether the engine will hold boost on a track day at Phillip Island… | |
| Installing and timing a 13B crankshaft with dowel pin alignment | Working on a Mazda RX-7 demands patience, especially when the task involves the heart of the rotary: the eccentric shaft. Properly installing and timing a 13B… |