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Holley - HP ECU & Harness MPFI - NTK

Holley - HP ECU & Harness MPFI - NTK

Holley HP EFI ECU and Harness Kit with NTK Oxygen Sensor for Universal V8 Multi-Point Fuel Injection.
$ 2,698.95 $ 2,698.95

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Specification

Brand
Holley
Item Number
HLY550-604N
Part Name
HP ECU & Harness MPFI - NTK
Injector Drivers
Eight sequentially driven 8:2 peak and hold drivers, capable of driving up to 16 low or high impedance injectors
Ignition Outputs
Eight channel Distributorless Ignition (DIS) outputs capable of directly driving 'Smart' ignition coils or Holley DIS coils
Oxygen Sensor Control
Integrated single channel wideband oxygen sensor control compatible with NTK or Bosch sensors
Data Logging
Internal data-logging with 2GB of memory
Nitrous Control
4-stage progressive nitrous control
Boost Control
Turbo boost control
Water/Methanol Injection
Integrated control
Self-Tuning
Self-tuning fuel table strategy
Cylinder Control
Individual cylinder fuel and spark control
Engine Compatibility
Compatible with 4, 6, and 8 cylinder engines
Fueling Strategy
Lb/hr based fueling strategy
Idle Control
Advanced idle, closed loop, and enrichment strategies
ECU Mounting
Fully potted ECU suitable for engine compartment or interior mounting
Connectors
Sealed automotive and marine grade connectors
Sensor Compatibility
Supports common OEM sensors and custom sensor calibration input
Ignition Compatibility
Plug and play with GM HEI, Ford TFI, magnetic and hall effect trigger, and other ignition systems
MAP Sensor Capability
1-5 bar
Knock Control
Two channel knock control sensor inputs for both one and two wire knock sensors
Pressure Inputs
Dedicated fuel and oil pressure inputs
Idle Air Control
Controls both stepper and PWM idle air control (IAC) motors
Fueling Strategies
Supports speed density, Alpha-N, or combination fueling strategies
Programmable Outputs
Four programmable high or low pulse width modulated (PWM) outputs
Programmable Inputs
Four fully configurable inputs
Nitrous Oxide Control
4-stage control with fully featured nitrous control eliminating the need for a separate controller
Water/Methanol Injection Control
Integrated control using Holley water/meth solenoids
Safety Features
Lean or rich safety cutoff
Timing Control
Full timing retard/control configurability per stage based on RPM or time
Display Compatibility
Optional 5.7” full-color touchscreen LCD for on-the-fly tuning, data-logging, or graphical gauge panel
Emissions Code
3
Prop 65
No
Dimensions
Length: 12.25", Width: 11", Height: 7.5"

Description

The Holley HP EFI ECU and Harness Kit (Part Number: HLY550-604N) is a comprehensive solution for controlling fuel and ignition in V8 multi-point fuel injection systems. Designed as a plug-and-play alternative for stock or custom-built late-model factory EFI engines, this kit includes an NTK wideband oxygen sensor and offers features such as self-tuning fuel table strategy, integrated water/methanol injection control, and support for up to 16 low or high impedance injectors. The ECU is fully potted for durability and can be mounted in the engine compartment or interior. It also provides advanced idle, closed-loop, and enrichment strategies for stable operation. This kit is ideal for enthusiasts seeking precise engine management and enhanced performance.

Disclaimer

This product is intended for off-road use only and may not be legal for use on public streets, roads, or highways in certain jurisdictions. It is the responsibility of the user to comply with all applicable laws and regulations. Please consult local laws before installation and use.