Sniper EFI Stealth 4150 Fuel Injection Systems - Engine Builder Magazine

Sniper EFI Stealth 4150 Fuel Injection Systems

Holley has announced the release of a new fuel injection system from its Sniper EFI division. Modeled after an Ultra XP carburetor, the Sniper Stealth 4150 features four 100 lb./hr. injectors, dual feed configuration and supports up to 650 hp naturally aspirated.

Holley has announced the release of a new fuel injection system from its Sniper EFI division. Modeled after an Ultra XP carburetor, the Sniper Stealth 4150 features four 100 lb./hr. injectors, dual feed configuration and supports up to 650 hp naturally aspirated. Other features include the high-pressure fuel crossover line (already in the box), rear exit wiring for easier routing and a more stealth look, and a timed spark port located under the front injector cover (fuel bowl) making this a convenient and very capable system.
Sniper EFI Stealth 4150
The Sniper Stealth 4150 ECU is capable of fuel map self-learning and ignition timing control, improving idle stability, driveability, and wide-open throttle horsepower! Did we mention that the Stealth 4150 also includes transmission kick down provisions for GM TH350/400, 200R4/700R4 and Ford C4/C6 applications.
For more info, click here.
Sniper EFI Super Stealth 4150 – 650 HP
Throttle body mounted ECU – no extra boxes to mountSupports up to 650HP with four 100lb/hr InjectorsIncludes high pressure fuel crossover lineAll of the wiring exits below the rear fuel injector cover, for a completely stealth installation.Timed spark part for vacuum advanced distributors located under the front fuel bowl, for easy access to the distributor.Programmable inputs and outputsThree Programmable 0-5V Sensor Inputs for Oil/Fuel/Dome or Nitrous Pressure SensorsSix Programmable Ground OutputsOne +5v Reference Output – +5V Power Supply for 0-5v SensorsOne Sensor Ground – Ground supply for 0-5v Sensors
For more info, click here.
Sniper EFI Super Stealth 4150 – 1250 HP
Supports up to 1250HP with eight 100lb/hr InjectorsExternal fuel pressure regulator required, set to a base pressure of 58.5 PSI, such as 12-886.High Resolution Full Color Touchscreen for Initial Setup, Tuning, and Gauge DisplaysSimple 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 clamp-on oxygen sensor kit for 2.25″ exhaust ensures a leak free oxygen sensor installation, withStainless Steel T-Bolt clamps and a Stainless Steel (Weldable) oxygen sensor flangeAvailable in 3 finishes: Shiny, Black and coming soon, Gold
For more info, click here.

You May Also Like

Elgin Chrysler Hemi Engine Hydraulic Lifter/Guide Assemblies

Elgin Pro-Stock OE-quality hydraulic roller lifter/guide assemblies for 2004-newer Chrysler Hemi engines without MDS cylinder deactivation.

Elgin Industries’ Elgin Pro-Stock range of performance parts now includes OE-quality hydraulic roller lifter/guide assemblies for 2004 and newer Chrysler Hemi engines without Multiple Displacement System (MDS) cylinder deactivation. This includes non-MDS 5.7L, 6.1L and 6.4L engines, model years 2004 and newer, and replaces OE #5038787AD (lifter) and #53021721AA (guide). Each is pre-assembled for fast, accurate drop-in installation.

Isky Dual Valve Spring Set

These sets feature drop-in installation and are wound from chrome silicon wire.

Holley’s Sniper 2 EFI Platform Gains Bluetooth Capability

Tech advancement brings even greater affordability and ease of use to Holley’s popular Sniper 2 EFI ecosystem.

Klotz Announces 2024 Product Catalog

By the time Klotz products reach your engine, it’s spent countless hours on the dyno and proven on the racetrack.

Pakelo Racing Transmission DLS A Lubricant

This product is Pakelo’s baseline IndyCar gearbox lubricant. It provides outstanding performance and greatly reduces drivetrain loss.

Other Posts

Bryan LaFlam Secures Ownership Stake in BigStuff Total Power Management

LaFlam will work alongside Ben Davidow, who acquired the company in 2021, as co-owner and director of operations.

Scribner Plastics’ Cylinder Head Containers

Scribner Plastics’ cylinder head storage/shipping container fits small block, big block and most Pro Stock cylinder heads.

Breather Valley Plates for LS Engines by LS Classic

Precision machined from aluminum, these plates replace the stock valley plates found on Gen III and Gen IV LS engines.

CP-Carrillo Kawasaki Teryx KRX1000 Pistons and Rods

Both pistons and rods are available off the shelf and include custom features incorporating CP-Carrillo high standards and consistent quality.