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Sniper EFI Super Sniper 1250
Product Discontinued
HOLLEYPART NUMBER: 510-550-517

Sniper EFI Super Sniper 1250

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This product is no longer available. Please call customer service for assistance at 1-800-345-4545.

Super Sniper 1250
Sniper EFI Super Sniper 1250
  • Bolt-On Self Tuning EFI Conversion
  • 4150 Flange
  • Supports Up to 1250 HP
  • Forced Induction & Nitrous Compatible
  • Controlled by 3.500 in Handheld Color Touchscreen
  • (8) Fuel Injectors
  • Black Ceramic Finish

    For Troubleshooting Tips setting up your New Holley Sniper EFI System, please see this helpful video from Holley Performance.

    Features:

    • 650 HP version features (4) 100 lb./hr Injectors
    • 1250 HP version features (8) 100 lb./hr Injectors

    - Compatible with Draw-Thru or Blow-Thru Forced Induction

    • User-friendly boost control with handheld adjustability
    • Programmable target air/fuel ratios per boost level
    • New 2.5 bar map sensor included supporting up to 21.5 PSI

    - Built-In Single-Stage Nitrous Controller

    • Supports dry or wet nitrous applications
    • Progressive or non-progressive nitrous control
    • Lean/rich AFR cutoff
    • Time or RPM based timing retard

    - Programmable Inputs/Outputs

    • (3) Programmable 0-5 V sensor inputs for oil, fuel, dome or nitrous pressure sensors
    • (6) Programmable ground outputs
    • (1) +5 V reference output - +5 V power supply for 0-5 V sensors
    • (1) sensor ground supplies ground for all 0-5 V sensors
    • Integrated ignition timing control
    • Simple (4) wire harness – Battery +/-, Ignition, and RPM
    • Built-in internal fuel pressure regulator
    • Self-tuning ECU with simple Q&A calibration wizard, no computer required
    • High-resolution full-color touchscreen for calibration, tuning and data display
    • Dual pattern bolt-on carb replacement designed to fit 4150 flanges and spread bore manifolds
    • Compatible with Holley EFI analog gauges and digital dashes

    Specifications: 

    • CFM: 800
    • Height: 3.28 in.
    • Injector Size: 100 lb/hr @ 58.5 psi
    • Inlet/Outlet Size: 9/16-18 Female O-Ring (-6 AN)
    • MAP Sensor: 2.5 Bar
    • Max Horsepower Rating: 1250 hp Forced Induction, 675 hp N/A
    • Throttle Bore: 1.6875 in. (1-11/16 in.)
    • Compatible Transmissions: 700R4, 200R4, TH350

    Installation Notes:

    Forced induction applications will require an additional fuel pressure regulator. Use p/n 510-12-848 for up to 800 hp and p/n 510-12-851 for 900+ hp.

    E-85 fuel is not recommended for use with Holley Super Sniper Kits. 

    Emissions Note:

    This part is only legal for sale and use on Uncontrolled (Non-Emissions Controlled) Vehicles or on vehicles used solely for the purposes of closed competition racing.

    CLICK THIS LINK FOR IMPORTANT CARB & EPA EMISSIONS INFORMATION ABOUT THIS PART

  • Part TypeFuel Injection System
    BrandHOLLEY
    Package Height9.8
    Package Width12.6
    Package Length14.3
    Weight13.39 PG
    Part CategoryPerformance Parts
    Part FitmentSemi Universal
    Vendor Part Number550-517
    Package Qty1
    Package TypeEA
    No Questions
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