Holley Sniper EFI Stealth 4500 Fuel Injection Systems 550-842 Systems, EFI, 4500, Throttle Body, Black, Flange, 1440 cfm, Injectors, Harness, Tuner, Kit
Holley Sniper EFI Stealth 4500 Fuel Injection Systems 550-842 Systems, EFI, 4500, Throttle Body, Black, Flange, 1440 cfm, Injectors, Harness, Tuner, Kit
A$4,807.94
IN STOCK! Est Ship 4-7 days.
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Description
Holley Sniper EFI Stealth 4500 fuel injection systems are what you need to convert your dragster or Pro-street vehicle to fuel injection. For engines producing 800+ hp, the Sniper Stealth 4500 systems feature eight 100 lbs./hr. injectors and a throttle body that flows a massive 1,440 cfm. These Holley systems come with a USB to CAN tuning cable and free downloadable Sniper EFI software to give you unlimited control of your engine. Holley Sniper Stealth 4500 systems will also look great under the hood in your choice of shiny, ceramic black, and classic gold finishes.
Features and benefits include:
* Supports up to 1,500 hp naturally aspirated or 1,250 hp forced induction with eight 100 lbs./hr. injectors
* Compatible with draw-through or blow-through forced induction applications
* 2.125 in. throttle plates, flow 1,440 cfm for large cubic inch engines
* 2.5Bar MAP sensor
* Integrated ignition timing control
* Programmable launch control via 2-step and timing retard. Both can be triggered by a trans-brake input
* Gen 3 Ultra Dominator-style 4-bolt air cleaner flange
* -8AN fuel inlets
* 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 real time Fuel Map Learn
* Built-in single-stage wet or dry progressive nitrous control
* Three programmable 0-5 V sensor inputs for oil/fuel/dome or nitrous pressure or other critical information
* Six programmable ground outputs, five programmable ground inputs. These can be used to trigger or control external devices, such as nitrous solenoids and boost control solenoids. Or to provide the ECU with an input to turn on function, such as an ignition timing
* One +5 V reference output, +5 V power supply for 0 to 5 V sensors, one sensor ground supply for 0 to 5 V sensors
* Throttle body mounted ECU--no extra boxes to mount
* Only 4 wiring connections required--battery +, battery -, switched ignition, and rpm
* Required external fuel pressure regulator, 12-848 is recommended
* Customizable secondary fuel pump output (TPS, rpm, or boost enabled)
* User-friendly boost control with handheld adjustability
* Free software included--comprehensive data logging tool to help you maximize the performance of your engine
* Real-time data logging to the included 3.5 in. touch screen allows you to save information to the SD card without needing a communication cable
* 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
* OEM-style TPS/IAC, 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
Part Type
Fuel Injection Systems
Specifications
- Product Attributes - Brand
- Holley Sniper
- Product Attributes - Manufacturer's Part Number
- 550-842
- Product Attributes - Part Type
- Fuel Injection Systems
- Product Attributes - Product Line
- Holley Sniper EFI Stealth 4500 Fuel Injection Systems
- Product Attributes - UPC
- 090127045275
- Product Attributes - Fuel Injection Style
- Throttle body
- Product Attributes - Fuel Injection System Type
- Single 4-Barrel Throttle Body (4500 Flange)
- Product Attributes - Maximum Horsepower with Gas
- 1,500
- Product Attributes - Timing Control Compatible
- Yes
- Product Attributes - ECM Included
- Yes
- Product Attributes - Self Tuning
- Yes
- Product Attributes - User Tunable
- Yes
- Product Attributes - EGR
- No
- Product Attributes - Transmission Controller Included
- No
- Product Attributes - Metering Style
- Speed density
- Product Attributes - Multi-Port Fuel Rails Included
- No
- Product Attributes - Throttle Body Included
- Yes
- Product Attributes - Throttle Body Mounting Flange
- 4500 Dominator
- Product Attributes - Venturi Quantity
- 4
- Product Attributes - Venturi Diameter (mm)
- 54.00mm
- Product Attributes - Airflow Rate (cfm)
- 1,440 cfm
- Product Attributes - Throttle Body Material
- Cast aluminum
- Product Attributes - Throttle Body Color
- Black
- Product Attributes - Injectors Included
- Yes
- Product Attributes - Injector Size (lbs/hr)
- 100 lbs./hr.
- Product Attributes - Calibration Module Included
- Yes
- Product Attributes - Wiring Harness Included
- Yes
- Product Attributes - Oxygen Sensor Included
- Yes
- Product Attributes - Fuel Pressure Regulator Included
- No
- Product Attributes - MAP Sensor Included
- Yes
- Product Attributes - IAT Sensor Included
- No
- Product Attributes - TPS Sensor Included
- Yes
- Product Attributes - IAC Motor Included
- Yes
- Product Attributes - Quantity
- Sold as a kit.
- Product Attributes - Notes
- Not for use with engines producing less than 800 hp. For use with gasoline only. Use of leaded race fuels may shorten the service life of the WBO2 sensor.
Reference Information
| Brand Name/s | Holley Sniper |
|---|---|
| StreetFX SKU | sne550-842 |
| SFX Item ID | 5014089 |
| Supplier Item Code | 5014089 |
| Manufacturer SKU | 550-842 |
| Manufacturer UPC | 90127045275 |
| Alternative References | SNI550-842 |
Compatibility
| Application Data |
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