What's Terminator X?

Holley's Terminator X family of EFI Systems are standalone engine management systems that closely replicate some of Holley's most advanced engine management systems but at a much more budget-friendly price. This PDF gives a highly detailed comparison of the Terminator X and X Max to engines built using the Holley HP and Dominator ECUs. To summarize, Holley was able to leave out some features found to be less-necessary by the majority of users and, in doing do, slash the price of a full-featured EFI System by half.  If you're switching your carbureted engine to multi-point EFI or are swapping a fuel-injected engine into your ride and need to stay on a budget, this is the EFI system for you.

Here are some of the features that are included in each Terminator X kit:

• Eight High-Impedance Injector Drivers
• Configuration, monitoring and data logging via included 3.5-inch touchscreen LCD display
• Configuration and monitoring via Terminator PC software (free download) and optional CAN-to-USB adapter cable
• Four configurable inputs and outputs
• Boost Control*
• Single-Stage Progressive Nitrous Control*
• Staging Assist*
• Transmission Controls***

• **Requires hardware not included with Terminator X system to implement
• **X Max Version Only

Different Terminator X EFI Systems For Different Applications

Yes, there are quite a few different Terminator X EFI System--nearly 100 with more on the way.  All Terminator X systems include either a Terminator X or Terminator X Max ECU. The Terminator X Max ECU provides connectivity for transmission control and drive-by-wire harnesses and is included only in those kits that require one or both of these features. Both ECUs include an on-board 1-BAR MAP sensor or you can add an external MAP sensor for boosted applications. On-Board Diagnostic LEDs display the status of ECU Power, Engine Run, Wideband Status, TPS Calibration, Crank Signal, and Cam Signal

In addition to the ECU the kit all Terminator X / X-Max systems include the following:

• ECU Power Harness
• Application-Specific Main Harness
• 3.5-inch Touchscreen LCD Display with Setup Wizard app
• Custom 4-input / 4-output harness pre-configured for two Electric Fans, A/C Kick, and A/C Shutdown
• Bosch LSU 4.9 Wideband O2 Sensor

Unique To The Terminator X MPFI Kit for Ford V8 302, Windsor & Big Block Engines

Holley provides many features unique to the Ford Windsor and Big Block Engine and Ford Foxbody w/ 5.0 Engine that make this EFI system a breeze to install and configure and powerful to operate.

• Custom sensor setup and connectors for commonly available sensors and IAC make sourcing and installing reliable parts a breeze
• Holley Universal 10-pin Ignition Connector is plug-and-play with Holley's Dual Sync Distributor as well as other popular Holley ignition kits and adapters.
• Transmission harness for Ford 4R70W and 4R75W transmissions from 1998 and up*
• Transmission harness for GM 4L60E, 4L65E, early 4L70E, 4L80E, and 4L85E transmissions*
  
• Two Four-Channel Coil Driver Modules for Ford Ignition Coils
• EV1 Injector harness

• *Transmission Control Versions Only

Choose From Six Different Versions of the Terminator X MPFI Kit for Ford V8 302, Windsor & Big Block Engines

1: Includes harness for 92-97 4R70W transmission
2: Includes harness for 98+ 4R70W transmission
3: Includes harness for Pre-2009 GM 4L60E/4L80E transmission

How is the Foxbody Version Different?

The "F" versions of these kits are made specifically for Foxbody Mustang owners. These kits include a lengthened main harness and custom ECU bracket that allows the ECU to be custom-mounted under the seat. Easy and professional-looking installation!  Holley also includes the Ford TFI ignition adapter that makes controlling ignition timing a breeze (requires the original TFI ignition or variant there-of.)

What Else Will I Need?

Required:  EFI Fuel System with

• EFI Fuel Pump (Many great options here)
  
• Pre- and Post-Pump Filters
• Fuel Pressure Regulator
• Associated Hose, Hose Ends, Clamps, Adapters, Etc.

Recommended:

• Fuel Pressure Gauge or
• Fuel Pressure Transducer
• CAN-to-USB Adapter Harness (for laptop tuning.  Download Terminator X Software here.)
• CAN Bus Y-Cable

Not Sure? Review this product documentation before you buy!

 
Quickstart Manual
Holley Terminator X and X Max EFI Systems

 
Tuning Manual
Holley Terminator X and X Max EFI Systems

 
Wiring Diagram
Holley Wiring Harness for Ford 5.0 Engine in Foxbody Mustang

 
Harness Manual
Holley Wiring Harness for Ford 5.0 Engine in Foxbody Mustang