Mazda 20B-REW Twin Turbo Complete Engine For Sale

Description

Mazda 20B-REW Twin Turbo Complete Engine For Sale

With a nominal displacement of 1,962 cc (654 cc × 3 rotors), the 20B-REW delivers the smooth, high-revving character associated with Mazda’s rotary engines while providing significantly greater torque than the two-rotor 13B-REW. The factory Japanese-market specification was rated at approximately 280 PS at 6,500 rpm and 402–407 Nm at 3,000 rpm.

The engine was produced for the 1990–1995 Eunos Cosmo JC, making it the production engine most closely associated with Mazda’s flagship JDM luxury coupe. The Cosmo was equipped from the factory with a four-speed electronically controlled automatic transmission.

This listing is particularly suited to customers looking for a complete JDM 20B-REW engine package, including the factory twin-turbo system, engine wiring harness and ECU where supplied. Having the original wiring and ECU together can be especially valuable for restoration projects and engine swaps because these components are specific to the Cosmo’s engine-management system.

Key Features

• Genuine Mazda 20B-REW rotary engine

• Three-rotor Wankel configuration

• 1,962 cc nominal displacement

• Factory sequential twin-turbo system

• JDM Eunos Cosmo specification

• Approximately 280 PS @ 6,500 rpm

• Approximately 402–407 Nm @ 3,000 rpm

• Electronic fuel injection

• Six spark plugs — two per rotor

• High-revving rotary architecture

• Smooth three-rotor power delivery

• Factory engine management system

• Cosmo-specific ECU

• Factory engine wiring harness

• Suitable for restoration and performance projects

• Highly desirable JDM rotary engine

• Rare three-rotor production configuration

The 20B-REW’s three-rotor arrangement provides a distinctive combination of smoothness, torque and power delivery. It was offered exclusively in the Eunos Cosmo, while the same-generation Cosmo was also available with the smaller two-rotor 13B engine.

Technical Specifications