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Holley Sniper EFI

Holley Sniper EFI 4150 Super Sniper 1250

1250 HP Forced Induction Sniper EFI 4 Barrel Fuel Injection Conversion - Self-Tuning Kit + Handheld EFI Monitor - Black Ceramic Finish

Part # 550-513 Be the first to write a review
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Introducing Holley Super Sniper EFI! Looking to convert your blow thru carbureted turbo engine to EFI? Look no further than Holley for the Super Sniper 4150 EFI systems featuring 8, 100LB/HR Fuel Injectors capable of supporting up to 1250 HP on forced induction or dry nitrous applications. Is your combination not producing that much horsepower? No problem, Holley also offers a 650 HP four injector version for lower horsepower applications with a power adder or someone just needing additional sensor inputs. Did we mention the Super Sniper also has full nitrous control built-in? That's right, no need for a separate nitrous controller! Every Super Sniper EFI system also comes with a USB to CAN tuning cable, as well as free downloadable Sniper EFI Software to give you unlimited control of your engine.

Features:

  • 1250 HP version features eight 100 Lb/Hr Injectors (Forced Induction)
  • The 800 CFM Main Body will support 700 Horsepower Naturally Aspirated
  • Compatible with Draw thru or blow thru forced induction applications
  • Built-in Single stage progressive nitrous control
  • Programmable inputs and outputs
  • Integrated ignition timing control for precise timing curves
  • 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) for N/A or Nitrous applications
  • Self-tuning ECU means you don't have to be a computer/tuning wiz to have EFI!
  • 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!
  • The included Genuine Bosch LSU 4.9 Wideband Oxygen Sensor provides real-time 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
  • Throttle body mounted ECU – no extra boxes to mount
  • USB to CAN Communication cable included for easy laptop tuning of advanced controls
  • Dual Pattern bolt on carburetor replacement, designed to fit 4150 Flange & Spread Bore manifolds - (Spread Bore Sealing Plate Part #9006 recommended)
  • Certified to ISO 8846, SAE J1171 & United States Coast Guard Requirements for Ignition Protection & Fire Resistance. Making Sniper EFI the perfect choice for carburetor to marine fuel injection conversions!
  • A Flame Arrestor is REQUIRED for marine installations, such as part number, 720-1 or 720-13
  • Compatible with Holley EFI analog gauges and electronic dashes
  • Patent Pending
Brand Holley Sniper EFI
CFM800
Emission Code3
FinishBlack Ceramic
Height3.28"
Injector Size100 lb/hr @ 58.5 PSI
Inlet / Outlet Size9/16-18 Female O-Ring (AN 6)
MAP Sensor2.5Bar
Max Horsepower Rating1250 Forced Induction
Product TypeSniper 4BBL TBI Kits
Transmission700R4/200R4
TH350
UPC090127039649
Part Number550-513
3

This part is legal for sale and use on Uncontrolled (Non-Emissions Controlled) Vehicles and Racing Use Only Vehicles.

The following vehicles are considered Uncontrolled (Non-Emissions Controlled) Vehicles:

  • 1965 and older U.S. manufactured California Certified vehicles
  • 1967 and older U.S. manufactured Federally Certified vehicles
  • 1967 and older Foreign manufactured vehicle

The following vehicles are considered Racing Use Only Vehicles:

  • Racing Use Only Vehicles are vehicles that are used exclusively for competition and that are not registered and that may never be used on the street

WARNING: It is against the law to install this part on an Emissions Controlled Vehicle

The following vehicles are considered Emissions Controlled Vehicles:

  • 1966 and newer U.S. manufactured California Certified vehicles
  • 1968 and newer U.S. manufactured Federally Certified vehicles
  • 1968 and newer Foreign manufactured vehicle

Have a question about this product?

  • Question

    Hi, I purchased this for my blow through turbo build. Question about the ignition system options for this. Since I am going with boost do I need to used a cd box that allows me to retard timing like the 6BTM? I was planning on using your hyperspark complete system and allow the ecu to control timing.....whats my options? Is it possible to use a 6al box as well? Thanks for your time. -Dante

    By Dante C. on January 9, 2020

    Answer
    If you are going to let the Sniper ECU control the ignition timing, then you can do all of the timing control needed from the EFI software. However, if you are more familiar with the MSD product and find that easier to use, you can also do it that way. Here is a Link to the Sniper EFI Software, it's free: https://documents.holley.com/techlibrary_sniper1.2.17installer.zip
    Helpful?
  • Question

    hi wondering if the super sniper can control the ignition on a ls ? blew up my sbc that i was using it on considering switching just dont see the option anywhere. the only way i can see to make it work is to put a distributor on am i correct ?

    By wayne f. on February 24, 2020

    Answer
    No, the ECU does not have Multiple ignition channels for individual coils. You would need an MSD LS ignition box such as the 6013/6014
    Helpful?
  • Question

    Can i use the Holley super sniper on a engine that is under 650hp while i build my race engine

    By Benjamin Z. on January 26, 2020

    Answer
    Yes. Many people buy the super sniper for their projects simply for the extra inputs and outputs.
    Helpful?
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    *Free Shipping & Handling only offered to the contiguous US on orders over $100, excludes clearance parts and oversized packages.

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