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TurboRX7

The ultimate resource for rotary engine RX-7s — factory documents, rotary engine fundamentals, and PowerFC tuning guides.

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Rotary Basics

Covers the 13B 2‑rotor and 20B 3‑rotor engines — both production and racing variants. Includes a GT35R single turbo build image gallery, various rotary engine photos, and wideband datalogging information.

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TitleDateExcerpt
How to Bleed the Cooling System on an FC3S Turbo IIThe FC3S Turbo II is a finely balanced bit of kit, but its rear radiator layout and the long coolant run through the chassis make air pockets a recurring…
RX-7 Overheating: Common Causes and How to Diagnose ThemAn RX-7 cooling system has little tolerance for neglected maintenance. A blocked radiator, weak water pump, failing thermostat or trapped air can quickly turn…
Cooling System Upgrades for the FD3S RX-7: Radiators, Ducting, and FansThe FD3S chassis was engineered in a colder climate than the one many Australian owners run their cars in. A long summer blast from Sydney up to the Gold…
Choosing between water-to-air and air-to-air intercooling on an RX-7When a rotary sees serious boost, the charge air leaves the turbo glowing hot, and how you cool it shapes everything from power delivery to engine longevity.…
Intercooler Sizing For Rotary Turbo BuildsA turbocharged rotary engine produces compact power but significant heat. The intercooler must reduce charge-air temperature without becoming a restriction…
Oil Return Line Routing for Low-Mounted Turbos on the RX-7A low-mounted turbo can suit a tidy RX-7 engine bay, but its oil drain needs careful planning. Rotary engines such as the 12A, 13B and 20B rely on dependable…
Welding a Turbo Manifold for a Rotary EngineA turbo manifold for a Mazda rotary engine must survive extreme exhaust temperature, vibration and repeated heat cycles. The compact 13B engine bay leaves…
How to Assess an Online Gambling Match BonusAn online gambling match bonus can make a casino welcome offer look more attractive by adding extra funds to an eligible deposit. For Australian players…
How Australian Players Can Assess A New Online CasinoSearching for a bet new casino can lead Australian players toward a wide range of offshore gambling websites, promotional pages, and mobile platforms. The…
GT35R vs BW EFR 8374 on a 13B: spool and powerChoosing a turbo for a 13B rotary is rarely a simple matter of selecting the largest compressor that fits the budget. The engine’s exhaust pulse behaviour,…