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$2,813.99
$2,499.99
Garage Sale - Holley 550-815 HP EFI Multi-Port Fuel Injection System V8 4 bbl
Garage Sale - Holley 550-815 HP EFI Multi-Port Fuel Injection System V8 4 bbl

Garage Sale - Holley 550-815 HP EFI Multi-Port Fuel Injection System V8 4 bbl

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Garage Sale - Holley 550-815 HP EFI Multi-Port Fuel Injection System V8 4 bbl
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Garage Sale - Holley 550-815 HP EFI Multi-Port Fuel Injection System V8 4 bbl
Garage Sale - Holley 550-815 HP EFI Multi-Port Fuel Injection System V8 4 bbl
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Part # UP61438
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This kit is garage sale priced because it has been opened and can't be sold as new.

NO WARRANTY, NO RETURNS ON GARAGE SALE ITEMS

HP Multi-Port EFI systems for small or big block Chevys are ready for the street or strip with the simple swap of an intake! Whether you have a stock engine, crate or custom-built engine, HP Multi-Port systems can help you maximize performance! By utilizing a laptop (or the optional 5.7 full color touch screen LCD) along with the HP's self-tuning capabilities, the HP Multi-Port EFI system will get you to the cruise or race in no time. HP Multi-Port Systems include: intake manifold, billet throttle body, ECU, wiring harness, fuel rails, and related small parts. Fuel pump and injectors are available separately to fit your requirements.

  • NEW V2 SOFTWARE FEATURES
  • œQuick Start ignition and fueling strategy for LS x Engines
  • 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)
  • œQuick Start fueling for all engines
  • Option for VE based fueling strategy
  • Fuel Map and Learn Function Smoothing
  • Configurable User Password Protection
  • Fully Configurable lap top Gauge Panel
  • FEATURES
  • 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 œSmart 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
  • Integrated single channel wide band oxygen sensor control. Works with NTK or Bosch sensors
  • Internal data-logging standard with a huge 2GB of memory
  • 4 Stage progressive nitrous control
  • Turbo boost control
  • Integrated water/methanol injection control
  • Self-tuning fuel table strategy greatly simplifies tuning process
  • Individual cylinder fuel and spark control allows you to unlock your engine™s potential
  • Works with 4, 6, 8 cylinder engines

Installation Instructions (PDF)

Installation Instructions (PDF)

Some parts are not legal for use in California or other states with similar laws/regulations

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