Advanced engine management system with 8 coil drivers and gearshift control

The EM80 is a powerful yet compact engine management system for engines of up to 8 cylinders and includes a high speed internal logging system and advanced gearshift control.

GEMS have been designing and manufacturing engine management systems for over 25 years and bring all of that experience along with the latest technologies to provide this highly capable yet cost effective system.


  • Fully configurable with GWv4 software (Supplied separately)
  • Gearshift control
  • High speed internal data-logging
  • Suitable for naturally aspirated or boosted engines
  • Adjustable fuel timing for engine speed and load
  • Anti-lag system with fuel and ignition cutting with ignition retard
  • Closed loop lambda control
  • Drive by wire throttle control
  • Turbo wastegate control
  • 4 channel variable valve timing
  • Uneven firing angles
  • Multiple fuel, ignition, vvc tables
  • Up to 8 calibration combinations for fuel, ALS, launch etc


  • 8 x 20A peak IGBT ignition drivers
  • 8 x injector drivers with peak and hold
  • 4 x 6A PWM half bridges
  • 12 x 3A PWM low side drivers
  • 16 x 0-5V 12bit analogue inputs **
  • 2 x Differential Analogue Inputs
  • 12 x Logic timing inputs (4 x Software selectable Logic or VR timing inputs) **
  • LSU4 Wideband lambda input
  • 2 x CAN2.0 bus
  • Internal barometric sensor
  • Internal 3 axis G sensor and gyroscope
  • 256MByte logging memory
  • 32KByte per second logging throughput
  • Ethernet PC comms
  • 80pin Molex CMC connector
  • Size: 157 x 131 x 35mm (6.18”x5.16”x1.38”)
  • Weight: 380g

**Some analogues & timing inputs are shared

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