Engine Management

GEMS has been designing and building competition engine management systems since 1985. Because of GEMS ongoing policy of developing products in response to the needs of its customers, and in many cases in close collaboration with its customers, the range of products available are now highly flexible and covers all engine management requirements.

All GEMS ECUs require GWv4 software for calibration

Standalone ECU’s

EM80 Thumb EM80 

Advanced engine management system for up to 8 cylinders

EM80 Thumb EM80-M 

Simulink® enabled advanced engine & systems controller

 GDi80 Thumb GDi80 

Advanced engine management system for direct injection engines up to 4 cylinders

ECU Accessories


4 channel ignition coil driver