Holley Performance Products has written this manual for the installation of the Sniper EFI TBI fuel injection system. Sniper Adjustable Progressive Linkage Instructions Tools Needed: Needle-nosed pliers Overview: The Holley Sniper EFI System comes shipped from the manufacturer with primary and secondary throttle plates that open at the same time. No laptop required. Each hex flat on the nut will change the float level approximately 1/32". Then, you'll be ready to bring EFI into range with Sniper EFI! First up on the dyno, the early truck intake produced 524 horsepower at 6,600 rpm and 480 lb-ft of torque at 5,000 rpm. The kit is composed of a modular fuel pump hangar assembly, a fuel pump that can properly feed a fuel injected engine, and a Holley HydraMat fuel pickup system.Read More, So you're ready to switch from carburetor to fuel injection, but you're unsure of what all is involved. The ten-wire harness controls advanced functions of the Sniper EFI and will not be used in this installation, but will be addressed in a later How-To piece. The long runners improved low-speed torque (look between 3,000 and 4,200 RPM), where many intake swaps lose ground in the name of higher-RPM horsepower gains. A few things caught my eye here that I would point out. 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Holley Sniper EFI self-tuning fuel injection systems deliver all the benefits—and none of the hassles. Page 1 Holley Sniper EFI HyperSpark Distributors are designed to plug and play with Sniper EFI systems. Truth be told, the power potential of the Dual Plenum design had less to do with the extra flow offered by having dual throttle bodies as it did the runner length. Perfect for street rods, muscle cars, off road trucks or nearly any carbureted vehicle. To help with power production, the LY6 received a Comp 54-469-11 camshaft. For you guys thinking twin turbos, each plenum featured multiple threaded ports to connect vacuum/boost lines. The LS truck intake is a popular choice for two reasons: it works and it's already on the engine when you pull it at the yard in most cases. After installation of the Sniper intake, we connected the map signal using a t-fitting and a vacuum source from both independent plenums. - NO laptop required! Putting The Sniper EFI Dual Plenum Intake To The Test On The Dyno, How To Install A Holley In-Tank Retro-Fit Fuel Module Kit Into Your OEM Fuel Tank, How to Make 900+ Horsepower with a Blow-Through Holley Super Sniper EFI, How to Replace your Mustang Autolite 1100 Carb with Holley Sniper EFI, How To Build A Custom Timing Table - Sniper EFI, How To Email Datalogs and Global Files for Holley EFI and Terminator X, Sniper EFI Initial Startup and Troubleshooting, Sniper Dual Plenum Fabricated Intake Manifolds for LS Engines. Put the saved Configuration from SD card (in Saved GCF folder) in the Sniper EFI Config File Folder, this is in your Documents folder if the Sniper Software was installed in the default location This PC > Documents > Holley > Sniper > Config Files Open Sniper EFI Software, and click “Open Config … Integrated ECU means less wiring and ease of installation! Holley just brought EFI within range - introducing Sniper EFI! Please read all the WARNINGS and NOTES, as they contain valuable information that can save you time and money. Holley carburetors have powered every NASCAR® Cup team and nearly every NHRA® Pro–Stock champion for four decades. Lucky for me, the Sniper EFI doesn’t require me to upload and adjust fuel maps or tables. The fact that they did such a good job on the factory intakes means they can be difficult to improve upon. In this video I install a Holley Super Sniper EFI system on my #FairmontProject. The openings in the dual throttle body flanges on the Sniper intake were designed to accept 92-mm throttle bodies. Automotive Wiring: "Good Enough" Is Anything But! No need to mount an external fuel pressure regulator! Sniper Installation Manual Review Quickstart Manual Notes. All Rights Reserved. Heck, pop the hood (or deck lid) of a fancy Ferrari, Lambo or other super exotic, and the chances are good that they employed this super sexy design. But Holley thinks that a Gen III Hemi swap makes these trucks so much better!Read More. Instead of buying another carburetor, I took advantage of the black friday sales and pulled the trigger on EFI. Holley decided to address two of the key issues with an EFI conversion: ease of use and full-featured functionality.The company didn’t want to get into the situation where a pro engine tuner had to be flown-in to set up the system or a scenario where you were forced to tow the car to a specialized shop.Instead, Holley figured a good EFI system had to be easy for the beginner to understand and set up.Conversely, Holley engineers knew full-… Truth be told, the GM engineers did a pretty good job on the factory manifolds, especially the truck intake. It’s economically priced so you can have all the benefits of EFI and still have money to finish or upgrade the rest of your ride! This manual contains the information necessary for the installation of the throttle body, wiring, sensors, and fuel system. Nothing in Holley's instructions manuals for any of the systems (Stealth 4500, Super Sniper, Sniper 4150, or Sniper 2300) say what fuel can be used with the system. Pro Dash firmware update adds additional inputs to Holley ECU's! For our test, we configured the Dual Plenum with a pair of manual throttle bodies, complete with (fully rigged) cable actuation. Sniper EFI: Modern Technology at an Affordable Price! Sniper EFI software was designed to make navigation simple and easy. Not only is the Dual Plenum a knockout-looking package, but the design provides ample airflow from the use of dual throttle bodies. ***Update 2/1 - Black Sniper units are backordered with Holley until 2/26/21. All Rights Reserved. This basic manual contains the information necessary for the installation of the throttle body, wiring, and sensors. View online or download Holley Sniper EFI 550-510 Quick Start Manual Both intakes were run with Holley 83-pound injectors, as boost was in the cards later for this test motor. Summit Racing carries Sniper EFI throttle body kits as well as Sniper EFI fabricated intake manifolds designed to maximize … Holley just brought EFI within range - introducing Sniper EFI! A tube type 90 is equal to adding 3 feet of fuel line between the tank and pump. You will first remove the sight plug, then to make your adjustment you will need to loosen the lock screw on the needle and seat. Comparing an aftermarket intake to one of the factory intakes usually results in either limited gains, or a big trade off. So if your quarter windows are peeling, lifting, crazing or are otherwise rough to look at, why not swap them at home? Equipped with the truck intake and tuned to perfection, the warmed-over 6.0L LY6 produced peak numbers of 524 hp (at 6,600 rpm) and 480 lb-ft of torque (at 5,000 rpm). Holley Performance Products has written this manual for the installation of the Sniper EFI TBI fuel injection system. To ensure plenty of exhaust flow, a set of Hooker long-tube 1 7/8 headers feeding 18-inch collector extensions were employed. Knowing this, we were naturally a tad skeptical about our test on the Sniper Dual Plenum. Installation of our Sniper Fuel Injection system is one of the simplest ways to upgrade and replace your carburetor with modern technology. Upgrade to Sniper EF It is our intent to provide the Further aiding head flow was a set of TFS Gen X 225 cylinder heads. This guide will walk through a basic installation including what parts are necessary to swap as well as what to watch out for. For other It needs to have a 80-100 micron pre-filter installed between the tank and the pump. It is with this power production in mind that we set a test between the factory truck intake and the Sniper Dual Plenum. Installation Kits are in stock and will ship separately*** Holley just brought EFI within range. The engine is a turbocharged 363 custom small block Ford. Read More, Drake Muscle Cars has quarter windows for your hatchback 1987-1993 Fox Body Mustang. Holley carburetors have powered every NASCAR® Cup team and nearly every NHRA® Pro–Stock champion for four decades. Sniper EFI gives you all the power and reliability of electronic fuel injection with none of the tuning issues commonly associated with carburetors. Supports up to 650hp with Four 100 Lb/Hr Injectors! Both intakes were also run with a set of 1 7/8-inch Hooker long-tube headers. Having run hundreds of LS intake tests, including no less than 20 different cathedral-port intakes in one sitting, trust us when we say that intake testing on a LS usually goes one of two ways. The early LS1 left a little to be desired, but all the other factory offerings, including the most common, the early truck intake, perform very well. Owners & Installation Manual Holley Sniper EFI System Quickstart Manual Holley Sniper EFI System. © 2021 Holley OEM Style TPS/IAC and Fuel Pressure regulator, for years of dependable service. Having designed and built x-ram prototype intakes in the past, it was interesting that the Sniper design did not feature a communication channel between the two plenums. FUEL SYNC Most tuning parameters and software functions can be found by selecting an icon from the toolbar. Using the correct length carb stud and nuts, tighten the Sniper EFI throttle body down progressively in a “criss-cross” pattern (60-80 in.lbs.). To properly test our two induction systems, we first needed a test motor. And while it wasn't a big concern for a naturally-aspirated combination, we liked having the Accel ceramic-boot plug wires all the same. Fun fact: the intersecting cross ram design requires finish welding the intake after merging the two halves together. New product details, installation instructions, best practices, and more. Sure, one 90-mm throttle body probably flows enough to support the desired power level, but having twice as much flow is always better, right?
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