1978-1987 Grand Prix Holley Super Sniper 4150 2x4 EFI Conversion, Shiny Finish 550-531

Introducing Sniper EFI 4150 2x4! Looking to convert your Grand Prixs draw-through dual carbureted blower engine to EFI? Do you have a Tunnel Ram with dual quad carbs? Are you putting together a twin-turbo blow-through setup? Look no further! The Sniper EFI 4150 2x4 system from Holley features 8, 100LB/HR Fuel Injectors capable of supporting 1250 HP on both naturally aspirated and forced induction applications. The Sniper EFI 4150 2x4 was designed for use on naturally aspirated engines, while the Super Sniper EFI 4150 2x4 system was developed for naturally aspirated, draw through supercharged, and blow-through turbocharged applications. The Super Sniper EFI 4150 2x4 system is equipped with an internal 2.5bar MAP sensor that is ready to be boost referenced out of the box, supporting up to 21.5 psi on boosted applications. For applications making more than 21.5 psi of boost, the Super Sniper EFI 4150 2x4 system has three additional 0-5v Sensor Inputs which can be used for an external MAP Sensor as well as oil pressure and fuel pressure. Every Sniper EFI can be used with free downloadable Sniper EFI Software, giving you unlimited control of your engine. Super Sniper EFI 2x4 comes with a USB to CAN tuning cable allowing for live engine tuning.

Features:

• Supports up to 1250 HP with Eight 100 Lb/Hr Injectors
• Compatible with draw through super charged applications
• 2.5Bar MAP Sensor
• Integrated ignition timing control
• Built in Single stage progressive nitrous control
• Programmable Target Air Fuel Ratios & Ignition Timing per Boost level
• USB to CAN Communication cable included for easy laptop tuning
• Three Programmable 0-5V Sensor Inputs for Oil/Fuel/Dome or Nitrous Pressure Sensors
• One Sensor Ground Ð Ground supply for 0-5v Sensors
• Single Throttle body mounted ECU, with easy connections between the two throttle bodies Ð no extra boxes to mount
• Only 4 Wiring Connections Required! (Battery +, Battery - , Switched Ignition & RPM)
• Fits on intake manifolds with flange spacing between 6.43in-13.5in
• Requires an external fuel pressure regulator
• 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 donÕt 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 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

Specs:

• CFM:1600
• Finish:Shiny
• Fuel Pressure:58.5 PSI
• Height:3.28in
• Injector Size:100 lb/hr @ 58.5 PSI

Manufacturer Part Number : 550-531

Part Notes:

Supercharger and/or Intake Manifold not included. For fitment reference only.Helpful Articles:

• Prepping for Fuel Injection