How does a Wankel rotary engine work in a Mazda RX-7?
The RX-7's 13B rotary uses a triangular rotor spinning eccentrically inside an epitrochoidal housing rather than pistons moving up and down. Each face of the rotor creates intake, compression, combustion, and exhaust phases simultaneously. The twin-rotor 13B-REW in the FD3S produces 255-280 hp from 1.3 liters displacement. Rotaries rev freely and are lightweight, but require meticulous oil injection maintenance and periodic apex seal replacement.
From the shop
Browse the shop →Original JDM designs, made to order.
Next: plan the move
Found the car. Understand the handover.
Before making promises about collection, coordinate the inspection, paperwork, seller release and transport. Give each part of the purchase its own check.