Holley EFI Terminator X Universal MPFI Kit, EV1 Injectors (Domestic V8)
Racing Use Only, Not Legal for Road Use
The Terminator X Universal MPFI Kit is the budget friendly way to put real Holley EFI control on a domestic pushrod V8. This is the full standalone package: Terminator X ECU, universal MPFI main harness with EV1 injector connectors, Bosch LSU 4.9 wideband and the 3.5 in touchscreen handheld. It runs the same core strategy as the rest of the Holley EFI lineup, so you get short term and long term fuel correction, boost control, progressive nitrous and the free laptop software. Keep in mind that fuel correction is not a replacement for a proper calibration; someone experienced still needs to dial in the base tune, timing and safeties to get the most out of it.
Features
- Plug and play engine control for domestic pushrod V8s such as conventional Chevrolet and Chrysler engines
- Universal MPFI main harness with EV1 (Jetronic / Minitimer) injector connectors
- High impedance injector drivers power most stock injectors and Holley EFI injectors (does not control low impedance injectors)
- Bosch LSU 4.9 wideband oxygen sensor for closed loop fuel control
- Built in 1 bar MAP sensor with 1/8 in, 3/16 in and 1/4 in vacuum hose adapters; for boosted applications the internal MAP can be disabled and the harness comes with a terminated connector for an external MAP sensor
- Plug and play ignition with Holley Dual Sync and HyperSpark distributors (HyperSpark requires adapter 558-323)
- 4 programmable inputs (12V, ground, 5V and frequency) for extra pressure sensors, nitrous activation, trans brake and similar triggers
- 4 programmable outputs (ground and PWM) for electric fans, boost control solenoid, nitrous control, IAC kit and more
- Boost control: boost vs time, gear, RPM and speed, plus boost safeties
- Nitrous control: single channel wet or dry, progressive or non progressive, rich and lean safeties, target closed loop AFR
- Advanced tables: 4x 1D, 1x 1D per gear, 4x 2D and 1x 2D per gear for custom functions such as flex fuel offset or fuel and oil pressure safeties
- On board diagnostic LEDs for ECU power, engine run, wideband status, TPS calibration, crank signal and cam signal
- 3.5 in touchscreen handheld with calibration wizard, internal datalogging and customizable gauge display
- Compact ECU that mounts almost anywhere (diagnostic LEDs must face up)
- Compatible with Holley EFI accessories such as analog gauges, shift lights, modules and Holley digital dashes
- Free Holley EFI tuning software for full laptop access
Specifications
| Part number | 550-936 |
| System | Terminator X |
| Injector connector | EV1 (Jetronic / Minitimer) |
| Injector drivers | High impedance |
| Wideband | Bosch LSU 4.9 |
| MAP sensor | Internal 1 bar, external MAP connector provided |
| Inputs / outputs | 4 inputs, 4 outputs |
| Ignition | Universal, Dual Sync and HyperSpark (558-323 adapter) ready |
| Handheld | 3.5 in touchscreen |
Fitment
Universal, domestic V8 engines with a conventional pushrod layout and EV1 style injectors. Not for low impedance injectors.
What is included
- Terminator X ECU
- Universal MPFI main harness with EV1 injector connectors
- ECU main power harness
- Input / output harness
- Bosch LSU 4.9 wideband oxygen sensor
- 3.5 in touchscreen handheld
- Terminated connector for external MAP sensor
- Vacuum hose adapters (1/8 in, 3/16 in, 1/4 in)