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Holley HP EFI Systems

There are so manu features with the Holley HP the most common question is why have a Dominator.  I will explain that on the Dominator page, but the quick answer is that the Dominator has many more custom I/O capabilities.


  • Data Logger. Scalable axes, Smoothing, Multiple graph view ability, Pre-defined notes fields and many more

  • Strip Chart Real-Time Data Viewer

  • Integrated Boost Control - Boost vs Time, Boost vs Gear (Time or RPM), Boost vs RPM, Boost vs Speed, Launch control. Boost launch builder, Over-boost safeties, Boost scramble

  • Traction Control - Power reduction via timing, nitrous percentage or boost (Requires Davis Technologies Holley Module)

  • “Quick Start” fueling for all engines

  • Option for VE based fueling strategy

  • Fuel Map and Learn Function Smoothing

  • Configurable User Password Protection

  • 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

  • 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

  • Eight channel Distributorless Ignition (DIS)outputs capable of directly driving “Smart” ignition coils or Holley DIS coils.

  • Plug and Play control of factory GM 24x and 58x LSx engines

  • Internal data-logging standard with a huge 2GB of memory

  • 4 Stage progressive nitrous control

  • Turbo boost control

  • Integrated water/methanol injection control

  • 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

  • Ignition Plug and Play with GM 24x and 58x LSx engines, GM HEI, Ford TFI, magnetic and hall effect trigger, and other ignition systems. 

  • 1-5 Bar MAP sensor capability

  • Two channel knock control sensor Inputs for both one or two wire knock sensors

  • Dedicated fuel and oil pressure inputs

  • Controls both stepper and PWM Idle Air Control (IAC) motors

  • Speed density, Alpha-N, or combination fueling strategies


As you might expect from Holley there are a lot of induction "kits" that include the manifolds etc so the pisture below are more for reference than anything else.   There are kits for every GM engine, Gen-3 HEMIs and Ford including the new Coyote.


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