Pre-Ignition x4 — Slim Standalone Engine Management Kit

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)

• 2 x Customizable spare analog inputs (e.g., oil pressure, fuel pressure)

• 2 x Trigger inputs (Crankshaft and Camshaft position sensors)

• 3 x Customizable spare digital inputs (default: Flex Fuel, Vehicle Speed Sensor, Clutch switch)

• Dual VR conditioner mount (VR conditioner not included)

• 4-bar MAP sensor (up to 43 PSI boost)

• Barometric pressure sensor (real-time atmospheric compensation)

• DRV8825 mount (for stepper idle valve support)

• 9 x Digital Outputs (4 x 2A max | 5 x 400mA max)

• Dedicated tachometer output

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

GitHub Documentation:

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.