Holley EFI Lightweight Dominator ECU - Engine Builder Magazine

Holley EFI Lightweight Dominator ECU

Holley EFI’s new Lightweight Dominator ECU utilizes a lighter potting material than the standard Dominator unit, which reduces total weight by 1.8 pounds. 

This lightweight version is specifically intended for drag racing. It is not recommended for use in high-heat conditions (under-hood mounting installations), and applications with high continuous current draw.

Features:

  • Lightweight ECU potting reduces overall ECU weight by 1.8 LBS or 34% (3.53 LBS) – Perfect for applications where saving every oz is mission critical
  • Works with 4, 6, 8 and 10 cylinder engines
  • Ignition Plug and Play with GM LS engines (non-VVT), GM HEI, Ford TFI, Coyote (non-VVT), 4.6/5.4 Mod Motor, Late Model HEMI and magnetic and hall effect trigger. Custom settings can be configured to allow for use with many other applications
  • Integrated electronic transmission control – Operates GM 4L60E and 4L80E transmissions, Ford AODE and 4R70W with more to come in the future
  • Integrated drive by wire throttle body control – Can control two drive by wire throttle bodies. Compatible with a number of DBW throttle bodies including GM, Chrysler, Ford, and Nissan
  • Integrated dual channel wide band oxygen sensor controls – For monitoring both engine banks (NTK or Bosch sensors)
  • Extensive amount of inputs and outputs allow for limitless combination of options. Allows for unit to be used as a complete data acquisition system as well
  • Twelve sequentially driven 8:2 peak and hold injector drivers, capable of driving up to 24 low or high impedance injectors as a standard feature. Multiple staged injector strategies
  • Twelve 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
  • Speed density, Alpha-N, Alpha-N Combination, and VE fueling strategies – Tuner has the option to select from a variety of load sensing strategies to meet their engine requirements or tuning preference
  • Individual cylinder fuel and spark control allows you to unlock your engine’s potential
  • Unique lb/hr based fueling strategy greatly simplifies and commonizes tuning
  • Advanced idle, closed loop, and enrichment strategies allow for very stable engine operation
  • 1-7 Bar MAP sensor capability – For naturally aspirated or boosted applications
  • Fuel Map and Learn Function Smoothing – Helps to smooth rough areas of the maps
  • Configurable User Password Protection – “Lock” your tune to prevent tampering
  • Self-tuning fuel table strategy greatly simplifies tuning process – The more you drive it, the more it learns
  • “Quick Start” strategies – For faster engine starting
  • Allows for use of common OEM sensors as well as custom sensor calibration input
  • 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
  • 3 Rev Limiters – Choose between 4 options for each: Fuel Only, Spark Only, Fuel and Spark, or Soft
  • Traction Control – Allows power reduction via timing, nitrous percentage or boost (Requires Davis Technologies Holley Module)
  • Store and select between four calibrations with Multi Map Selector (Part Number 558-407)

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