HP EFI ECU & Harness Kits

Looking for a alternative for your stock or built late model factory FORD EFI engine? How about a replacement ECU for your older Holley C950? Holley has you covered. HP EFI ECU and harness kits are designed to be used with popular factory EFI engines as an alternative to the factory ECU and harness or as a replacement for your C950 ECU. The HP allows you to accurately control the fuel and ignition of your engine along with additional controls for nitrous, boost or water meth.

Features:

• Advanced idle, closed loop, and enrichment strategies allow for very stable operation
• ECU is fully potted and can be mounted in the engine compartment or interior
• Sealed automotive and marine grade connectors
• Allows for use of common OEM sensors as well as customer sensor calibration input
• Ignition Plug and Play with GM 24x and 58x LSx engines, GM HEI, Ford TFI, magnetic and hall effect trigger, and other ignition systems. New Plug and Play applications in process.
• Custom settings can be configured to allow many other applications
• 1-5 Bar MAP sensor capability
• Optional 5.7” full-color touchscreen LCD allows easy on-the-fly tuning,data-logging or can be used as an easy to see graphical gauge panel
• Two channel knock control sensor Inputs for both one or two wire knock sensors
• Dedicated fuel and oil pressure inputs
• Eight sequentially driven 8:2 peak and hold injector drivers, capable of driving up to 16 low or high impedance injectors as a standard feature. Multiple staged injector strategies
• Controls both stepper and PWM Idle Air Control (IAC) motors
• Eight channel Distributorless Ignition (DIS)outputs capable of directly driving “Smart” ignition coils or Holley DIS coils. Will drive 2 wire coils with the addition of PN 554-112 high current coil driver module
• Plug and Play control of factory GM 24x and 58x LSx engines
• Speed density, Alpha-N, or combination fueling strategies
• 4 Programmable high or low Pulse Width Modulated (PWM) outputs and 4 fully configurable inputs can be configured for use
• Integrated single channel wide band oxygen sensor control. Works with NTK sensors
• 4 Stage nitrous oxide control
• Internal data-logging standard with a huge 2GB of memory
• 4 Stage progressive nitrous control
• Fully featured nitrous control eliminates the need for a separate nitrous controller device
• Can be configured “Wet” or “Dry” with closed loop feedback
• Turbo boost control
• Integrated Water/Methanol injection control
• Progressive control based on time, RPM, or boost, requires part # 554-111
• Lean or rich safety cutoff
• Self-tuning fuel table strategy greatly simplifies tuning process
• Full timing retard/control configurability per stage based on RPM or time
• Individual cylinder fuel and spark control allows you to unlock your engine’s potential
• Uses Holley Water/Meth solenoids specially designed and calibrated for use with this EFI system to allow the user to enter Water/Meth flow as a percentage of fuel injector flow
• Works with 4, 6, 8 cylinder engines
• Includes NTK Wideband Oxygen Sensor
• Unique lb/hr based fueling strategy greatly simplifies and commonizes tuning

Specs:

• Accelerometer Support: Yes
• Boost Control: Yes
• Brand: Holley EFI
• CAN-BUS Support: Yes
• Category: Air and Fuel Delivery
• Coil Per Cylinder Ignition Support: Yes
• Datalogging Support: Yes
• Dry Nitrous Control: Yes
• e85 Support: Yes
• EGT Support: Yes
• Emission Code: 3
• Forced Induction Support: Yes
• Fuel Filter Included: No
• Fuel Hose Included: No
• Fuel Injectors Included: No
• Fuel Pressure Regulator Included: No
• Fuel Pump Included: No
• Grade Type: Performance
• Ignition Timing Control: Yes
• Ignition Type: Coil - (No Timing Control), Ford TFI, GM HEI Small Cap, Holley Dual Sync Distributor
• Individual Cylinder Fuel Corrections: Yes
• Injector Connector: Jetronic / Minitimer (Bosch)
• Intake Manifold Included: No
• Knock Retard Support: Yes
• Multi-Stage Nitrous Control: Yes
• Part Type: Fuel Injection Conversion Kit
• Product Type: EFI System
• Progressive Nitrous Control: Yes
• Self-Tuning: Yes
• Sub Category: Service Kits
• Throttle Position Sensor Included: No
• Traction Control Support: Yes
• User-Tuneable: Yes
• Wet Nitrous Control: Yes

Tech Resources:

ECU is certified to ISO 8846, SAE J1171 & United States Coast Guard Requirements for Ignition Protection & Fire Resistance. Holley HP EFI systems are equipped with 4 programmable inputs and 4 programmable outputs that are ideal for most vehicles with a single power adder. This feature allows the user to configure the system to support a wide range of controls including boost control, progressive nitrous, water/meth injection, speed inputs, fuel pump control, AC inputs, timing retard inputs and various other uses. When selecting an ECU, users need to ensure their planned controls can be run with the 4 inputs and 4 outputs as certain combinations may use more I/Os than are available. If more I/Os are required, users should choose the Dominator VMS.

EFI selection chart

Instructions - techlibrary_199r10555rev16.pdf