Sniper EFI

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Holley just brought EFI within range - introducing Sniper EFI! It’s economically priced so you can have all the benefits of EFI and still have money to finish or upgrade the rest of your ride! Perfect for street rods, muscle cars, off road trucks or nearly any carbureted vehicle. Put an end to cold start issues, hesitations, vapor lock, and flooding.


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Standard Sniper EFI Features!

  • Self Learning
    Means you don't have to be a computer/tuning wiz to have EFI!
  • Integrated ECU
    Eliminates the need of mounting an external box, saving you time and money.
  • Timing Control
    Provides optimal idle stability, and throttle response, and maximizes the output potential of your powerplant.
  • Fan Control
    Eliminates the need for an external fan controller, simply wire a relay to power your fan, and let the ECU trigger the relay at the desired coolant temp.
  • Boost Compatible
    Advanced boost control allows you to huff as much pressure into the engine as you require, while allowing you to safely pull ignition timing, and add fuel.
  • Nitrous Control
    Built in Dry or Wet Progressive or Non-Progressive nitrous control allows you to bottle fed your engine without needing to add an external controller.
  • 3.5 in. LCD Display
    Serves as a tuner and a digital gauge display, all at the palm of your hand.
  • Laptop Tuneable (Free)
    For the advanced users, the Sniper EFI tuning software gives you complete control of your engine's performance.
     

Highlights

  • Dual Pattern bolt on carburetor replacement, designed to fit 4150 Flange & Spread Bore manifolds - (Spread Bore Sealing Plate Part #9006 is recommended)
  • Throttle body mounted ECU – no extra boxes to mount
  • Supports up to 650hp with Four 100 Lb/Hr Injectors!
  • Only 4 Wiring Connections Required! (Battery +, Battery - , Switched Ignition & RPM)
  • Internal fuel pressure regulator eliminates the hassle of plumbing an external fuel pressure regulator (Preset to 58.5 PSI)
  • Integrated ignition timing control & coil driver
  • High Resolution Full Color Touchscreen for Initial Setup, Tuning, and Gauge Displays
  • Simple Calibration Wizard (Answer a few questions about your engine and it creates the base map, then starts tuning on its own!) - NO laptop required!
  • Self-tuning ECU means you don’t have to be a computer/tuning wiz to have EFI!
  • Available in base & master kits (Master kits include complete fuel system consisting of; 20ft of 3/8” Vapor Guard Fuel Hose, 12-920 Fuel Pump, Filters, necessary hardware and bulkhead fitting to return fuel into the tank!)
  • The included Genuine Bosch LSU 4.9 Wideband Oxygen Sensor provides realtime Fuel Map Learn!
  • OEM Style TPS/IAC and Fuel Pressure regulator, for years of dependable service.
  • Included clamp-on oxygen sensor kit ensures a leak free oxygen sensor installation, with Stainless Steel T-Bolt clamps and a Stainless Steel (Weldable) oxygen sensor flange
  • Patent Pending
     

Integrated ECU & Fuel Pressure Regulator

Integrated ECU means less wiring and ease of installation. The integrated Fuel pressure regulator simplifies plumbing/installation. No need to mount an external fuel pressure regulator!
 


Sniper EFI Quick Reference Guide

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SNIPER EFI  HP (NATURALLY ASPIRATED) HP (POWER ADDER) INJECTORS (100LB/HR) BOOST CONTROL BARRELS CFM FUEL PRESSURE REGULATOR AVAILABLE AS MASTER KIT
4150 Sniper EFI 650 575 4 No 4 800 @ 1.5" HG Included Yes
Super Sniper 650 650 575 4 Yes 4 800 @ 1.5" HG Included No
Super Sniper 1250 650 1250 8 Yes 4 800 @ 1.5" HG Included No
Sniper 2x4 4150 1250 1250 8 No 2X4 1600 @ 1.5" HG Not Included No
Super Sniper 2x4 4150 1250 1250 8 Yes 2X4 1600 @ 1.5" HG Not Included No
Sniper XFlow 800 690 4X120 Yes 4 900 @ 1.5" HG Not Included No
Sniper XFlow 1375 800 1375 8X120 Yes 4 900 @ 1.5" HG Not Included No
Sniper EFI 2300 350 285 2 No 2 580 @ 3" HG Included Yes
Super Sniper 2300 350 650 4 Yes 2 580 @ 3" HG Included No
Sniper EFI BBD  350 285 2 No 2 370 @ 3" HG Included Yes
Sniper EFI Small Bore 2GC 350 285 2 No 2 370 @ 3" HG Included Yes
Sniper EFI Quadrajet 500 575 4 No 4 715 @ 1.5" HG Not Included Yes
Sniper EFI Stealth 4500 1500 1250 8 Yes 4  1440 @ 1.5" HG Not Included No

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Artiklar

Sniper EFI Installation Guide - 02/25/2020

So you're ready to switch from carburetor to fuel injection, but you're unsure of what all is involved. This guide will walk you through a basic installation including what parts are necessary to swap as well as what to watch out for. - Read More


Going In-Depth With The Sniper Stealth 4500 EFI System - 05/19/2021

While old habits and proven strategies can be hard to shelve, the advantages offered by EFI systems like the Sniper Stealth 4500 EFI can take an already-effective race program to the next level. - Read More


Going In-Depth With Holley's Terminator X Stealth 4500 EFI System - 03/16/2021

Hot on the heels of the Terminator X Stealth 4150 EFI system that debuted earlier this year, Holley has now added the Terminator X Stealth 4500 EFI system to the lineup. As the name implies, the new hardware is designed to work with 4500 flange intake manifolds, but this system is much more than just a carburetor replacement that’s designed to improve drivability and throttle response. - Read More


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