Description
Complete Fuel Injection System. The Holley EFI Terminator X Max Fuel Injection System with Transmission Control for EV6 Fuel Injectors provides full engine and transmission management for GM Gen IV LS engines and compatible transmissions. Featuring self-learning fuel strategies and advanced programming capabilities, this system delivers precise control for a wide range of applications, from street to race.
Construction and Appearance. This system includes a compact black textured ECU engineered to withstand demanding automotive environments. The included touchscreen handheld (with select configurations) offers a modern, intuitive user interface designed for easy calibration and tuning.
Installation. Installation utilizes a plug-and-play style harness kit compatible with factory sensors and components, minimizing the need for cutting or drilling. The system is designed for OEM-style integration to simplify installation and ensure reliable operation.
Fitment and Application. Compatible with Gen IV 48-53-60 GM truck engines and LS2/LS3 engine families. Suitable for use with EV6 fuel injectors and supported transmission control systems including the 4L60E and 4L80E. This system is intended for use on uncontrolled (non-emissions controlled) vehicles or racing applications unless otherwise specified.
Holley EFI 550-918
CA Residents: WARNING: Cancer and Reproductive Harm
- Gen IV 48-53-60 GM Truck Engines and LS2/LS3 Compatibility
- 58x Crank and 4x Camshaft Reluctor Configuration
- EV6 Injector Support with USCAR Connector Interface
- Supports 4L60E or 4L80E Transmission Control Systems
- Includes a 3.5 Inch Touchscreen Handheld for Easy Calibration and Tuning (Included with Select Configurations)
- Real-Time Fuel Map Learning Capability for Precise Fuel Delivery
- High Impedance Injector Drivers Suitable for Stock LS Injectors
- Onboard 1 Bar MAP Sensor Suitable for Naturally Aspirated or Nitrous Setups
- Four Programmable Inputs and Outputs for Fans, Boost, and Nitrous Control
- Boost Control Features Include Boost Versus Time, Gear, RPM, and Speed
- Nitrous Control Options Include Wet, Dry, Progressive, or Non-Progressive Modes
- Advanced Tables for Custom Fuel, Spark, and Safety Configurations
- Diagnostic LEDs for Quick Engine Condition Assessment
- Compact ECU Design with Diagnostic LEDs Facing Up for Correct Installation
- Compatible with Multiple Holley EFI Accessories and Modules
- Includes Wideband Oxygen Sensor Bosch LSU 4.9 for Accurate AFR Monitoring
- Comes with a Comprehensive Harness Kit Including Engine, Transmission, and Injector Harnesses (Harnesses May Vary by Configuration)
- Self-Tuning and User-Tuneable Software Suite for Advanced Users
- Supports Coil Per Cylinder Ignition and Knock Retard Features
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