Bold charcoal drawing of an engine bay from above showing pulleys, hoses, and chassis rails, moody gray and blue tones, mechanical atmosphere

TurboRX7

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

Explore Resources
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.

Learn the basics →

Stay Updated

Sign up to receive the latest rotary engine resources and tuning guides.

ⓕ ⓣ ⓘ ⓤ

Get in Touch

Stories

TitleDateExcerpt
Pipe diameter and muffler choices for a turbocharged rotarySizing a cat-back exhaust for a turbocharged rotary involves matching the turbine, engine and intended workload, rather than simply selecting the biggest pipe…
Equal-length vs unequal-length headers for the 13BA 13B rotary rewards careful exhaust design, but equal-length and unequal-length describe geometry rather than guaranteed power. Equal-length exhaust headers…
RX-7 exhaust system architecture: factory vs aftermarket flow pathsAn RX-7’s exhaust is part of its operating envelope, not merely a box at the back of the car. On a rotary engine, primary pipe length, collector design and the…
How to Fabricate a Battery Relocation Kit for the FD3SA battery relocation kit for the FD3S can free useful engine-bay space for cooling, wiring or exhaust work, but the finished installation must handle starter…
LED lighting for the RX-7: dome, dash and park lightsInstalling LED lighting in an RX-7 can make night driving more pleasant and give the cabin a clean, modern appearance. The trick lies in matching each…
How to remove and clean the FC3S headlight pop-up mechanismThe FC3S’s pop-up lamps depend on an electric actuator, drive gears and linkage to raise, hold and lower each unit. Grease, corrosion, tired motor brushes or a…
Factory audio upgrades with an untouched RX-7 dashA factory audio system upgrade without modifying the dash is achievable by separating the visible trim from the electronics behind it. The goal is to retain…
Reupholstering RX-7 Seats With Practical Fabric And Fitment TipsReupholstering RX-7 seats is a rewarding way to refresh a tired cabin without losing the character of Mazda’s lightweight sports car. The right fabric,…
DIY Dash Repair For Cracked Gauges On The FD3SA cracked gauge lens or split instrument binnacle can make an otherwise tidy Mazda RX-7 FD3S look neglected. Sun exposure, repeated heat cycles, ageing…
Window Regulator Repair For The FC3S RX-7A sticking or silent window can make an FC3S RX-7 unpleasant to drive, especially when collecting a ticket at a car meet or trying to use a drive-through in…