Spitronics Mercury3 ECU/TCU/TxW

The Spitronics Mercury3 is an advanced, cost-effective Engine and Transmission Control Unit engineered for a wide range of applications—from racing setups to custom conversions. Built with durability in mind, it features a compact epoxy-filled enclosure that’s water- and heat-resistant, ideal for harsh environments.

Key Features:

• Full Sequential Control: Supports sequential injection for up to V8 and semi-sequential for V12 engines with 8 injectors and 8 coil drivers.

• Throttle by Wire (TBW): Native support for electronic throttle bodies (both single and dual-pedal configurations), with advanced safety logic and PID tuning.

• Advanced Tuning Capabilities: Real-time tuning with intuitive software, matrix and graph options, logging tools, and startup maps.

• Integrated Vehicle Functions: Launch control, idle control, fuel and oil pressure regulation, cam and boost control, flat-shift, and more.

• Modular Hardware Classes: Choose from Standard, Intermediate, Advanced, or Ultimate configurations to match your build’s complexity.

• Firmware Upgradeable: Built-in bootloader for seamless firmware updates—no external programmer needed.

Technical Specifications:

• Inputs:

  • 9 analog inputs for sensors (e.g., TPS, IAT, ECT, MAP, fuel/oil pressure, lambda)

  • 4 trigger inputs (crank, cam, wheel speed, propshaft)

• Outputs:

  • 8 negative injector drivers

  • 8 configurable positive drivers (for coils, fans, valves, boost, etc.)

  • 4 auxiliary outputs (relays, RPM signal, etc.)

  • Stepper or PWM idle valve support

• Advanced Features:

  • Wide compatibility with factory sensors and ignition systems

  • Full Throttle by Wire supports dual-sensor redundancy and fail-safe

  • Built-in MAP and altitude compensation

  • RapidFire, launch/anti-lag/flat-shift logic

  • Logging and diagnostic tools

Applications:

Ideal for street, race, drift, off-road, and performance builds that require flexible and scalable ECU solutions, especially where electronic throttle control is essential.