Holley Sniper 550-540 Xflow EFI, Shiny Finish, 900 CFM

Description

HOLLEY SNIPER EFI XFLOW - SHINY FINISH
900 CFM supports up to 800HP N/A with 4x 120 Lb/Hr Injectors
Introducing Sniper EFI XFlow! Are you building a naturally aspirated engine up to 800 Horsepower? Looking to convert your blow through carbureted turbo engine to EFI? Look no further! The Sniper EFI XFlow from Holley features 4, 120LB/HR Fuel Injectors and flows 900CFM allowing it safely supporting up to 800 HP on Naturally Aspirated engines. The XFlow comes with an internal 2.5bar MAP sensor that will safely work on boosted applications up to 21.5 psi. For applications making more than 21.5 psi, and has three additional 0-5v Sensor Inputs which can be used for an external MAP Sensor, or Dome Pressure for boost control, as well as oil pressure and fuel pressure
Holley Sniper 550-540 Xflow EFI, Shiny Finish, 900 CFM
Sku # 425550540
Mfr. Part # 550-540
Condition
New
Brand
Holley Sniper
Sold
Kit
Details
Info
HOLLEY SNIPER EFI XFLOW - SHINY FINISH
900 CFM supports up to 800HP N/A with 4x 120 Lb/Hr Injectors
Introducing Sniper EFI XFlow! Are you building a naturally aspirated engine up to 800 Horsepower? Looking to convert your blow through carbureted turbo engine to EFI? Look no further! The Sniper EFI XFlow from Holley features 4, 120LB/HR Fuel Injectors and flows 900CFM allowing it safely supporting up to 800 HP on Naturally Aspirated engines. The XFlow comes with an internal 2.5bar MAP sensor that will safely work on boosted applications up to 21.5 psi. For applications making more than 21.5 psi, and has three additional 0-5v Sensor Inputs which can be used for an external MAP Sensor, or Dome Pressure for boost control, as well as oil pressure and fuel pressure. An External Fuel Pressure regulator is required; we recommend part number 12-848 for N/A applications.
Features:
Supports up to 800HP N/A with 4 120 Lb/Hr Injectors
Flows 900CFM, making it perfect for high rpm N/A engine combinations
Compatible with Draw through or Blow through forced induction applications
2.5Bar MAP Sensor
Integrated ignition timing control
Built in Single stage progressive nitrous control
User friendly Boost Control with handheld adjustability
Programmable Target Air Fuel Ratios per Boost level
Advanced boost control available via free Sniper EFI tuning software, including Boost vs RPM and Boost vs Time.
Three Programmable 0-5V Sensor Inputs for Oil/Fuel/Dome or Nitrous Pressure Sensors
Six Programmable Ground Outputs
One +5v Reference Output - +5V Power Supply for 0-5v Sensors
One Sensor Ground Ground supply for 0-5v Sensors
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
Only 4 Wiring Connections Required! (Battery +, Battery - , Switched Ignition & RPM)
Requires an external fuel pressure regulator: P/N 12-848 up to 800 HP
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!
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 2.5 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 Number - US10294902B2
Charts
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This item is being shipped to you directly from the manufacturer and is subject to an increased handling time. Delivery estimates that include the handling time are displayed on the "Shipping and Payments" tab.
Specs
Sold in Quantity
Kit
CFM
900 CFM
Injection Style
Throttle Body
Metering Style
Speed density
Intake Manifold Included
No
Throttle Body Included
Yes
Distributor Included
No
Wiring Harness Included
Yes
EGR
No
Fuel Pump Included
No
Injectors Included
Yes
Fuel Rails Included
No
Calibration Module Included
No
TPS Sensor Included
Yes
IAC Motor Included
Yes
ECM Included
Yes
Fuel Pressure Regulator Included
No
MAP Sensor Included
Yes
IAT Sensor Included
Yes
Venturi Quantity
4
Emission Code
3
Self Tuning
Yes
Throttle Body Material
Aluminum
Throttle Body Finish
Polished
Carburetor Flange Type
Dual: Square and Spread Bore
User Tunable
Yes
Use with Power Adder
No
GTIN Code
090127071694
MFG. Part #
550-540
Injector Size
120 lbs./hr.
Max Horsepower Rating
800
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About
Speedway Motors is America’s Oldest Speed Shop® and has been a trusted source for specialty rodding and racing products and friendly expert advice for more than 69 years. Founded in 1952 by “Speedy” Bill Smith – a racer and street rodder himself – Speedway has grown from a one-man operation to become the world’s largest manufacturer, distributor and retailer of street rod and racing products. Our industry-leading fast delivery is the result of same-day shipping from our state-of-the-art, centrally located 500,000 sq. ft. headquarters. Speedway’s size offers customers unmatched product selection and low pricing, while our excellent technical support and customer service have made us a recognized leader in the rodding and racing industries.
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