Closed Deck X4 - Professional Standalone Engine Management

from $239.99

The Closed Deck X4 is our most feature-packed standalone ECU to date. Powered by the Atmega2560 and fully compatible with the official Speeduino firmware (no code modification required), it offers exceptional flexibility and capability for a wide range of engine setups and applications.

Included:

  • Closed Deck X4 ECU (assembled as pictured)

  • Harness-side connectors and pins

  • Arduino Mega 2560 "Pro" pre-flashed with latest Speeduino firmware

MAP Sensor:

The Closed Deck X4 is our most feature-packed standalone ECU to date. Powered by the Atmega2560 and fully compatible with the official Speeduino firmware (no code modification required), it offers exceptional flexibility and capability for a wide range of engine setups and applications.

Included:

  • Closed Deck X4 ECU (assembled as pictured)

  • Harness-side connectors and pins

  • Arduino Mega 2560 "Pro" pre-flashed with latest Speeduino firmware

Hardware feature List:

  • Supports up to 8 cylinders for both fuel and ignition, using 4 fuel channels and 4 ignition channels. Full sequential fuel and ignition for 2 (even fire only), 3, and 4-cylinder engines. Wasted spark and semi-sequential operation for 6 (even fire only) and 8-cylinder engines.

  • 4 x Fuel Injector Outputs

  • 4 x Ignition Outputs (Selectable voltage: 12V or 5V)

  • 4 x Pre-configured analog input channels (CLT, IAT, TPS, O2 sensors)

  • 5 x Customizable spare analog inputs - e.g., oil pressure, fuel pressure

  • 3 x Trigger inputs: Crank + dual camshaft position support

  • 6 x Digital inputs - e.g., Flex Fuel, Vehicle Speed Sensor, Clutch switch

  • Dual VR conditioner mount (VR conditioner not included)

  • SMD MPXH-compatible mount (sensor options selectable above)

  • Barometric pressure sensor (real-time atmospheric compensation)

  • DRV8825 mount for stepper idle valve control

  • 10 x Digital Outputs (2A max each) - e.g., Idle, Boost, VVT, Fuel Pump, Fan

  • Dedicated tachometer output

  • 2 x Serial headers (Serial0 & Serial3) - ideal for Bluetooth or WiFi modules

  • USB-C header (automatically disables Serial0 when USB is connected)

Open Source and Customizable:

Full control with open-source hardware and firmware.

Affordable and Reliable:

Serious performance without the high price tag.

Backed by a Big Community:

Lots of guides, support, and real-world experience available.

Tested Before Shipping:

Every ECU is tested to ensure top quality and reliability.