To help our customers shop hasslefree, we have categorized our products. An efi system partition is essential if you want to boot from the operating system os you have installed on your hard drive, typically it is created during your operating systems installation. Extensible firmware interface efi basic instructions. The aem efi system allows for extreme flexibility in engine tuning. If this is your first visit, be sure to check out the faq by clicking the link above. The system is composed by the fuel tank, the pipes, one or more fuel filters, a fuel pump that could be mechanical or electric and the fuel metering components such as the carburetor or fuel injection system. We often receive inquiries from customers asking which aftermarket electronic fuel injection system is the best one.
This course is designed to dispel the myths associated with electronic fuel injection. A high octane rating indicates the fuel will not knock or ping easily. Holley sniper efi fuel injection installation manual. If this type of contamination is in the puw wfi ps system, id recommend shutting it down, draining. The injector simply acts as a spray nozzle to break up the fuel into a fine spray it doesnt actually control the fuel flow.
This was a speeddensity system, using engine speed and intake manifold air density to calculate air mass flow rate and thus fuel requirements. When a computer is booted, uefi firmware loads files stored on the esp to start installed operating. Fast is the leading developer of electronic fuel injection systems, efi components, intake manifolds, tuning tools for high performance and street applications efi systems javascript seems to. Printing industry leaders rely on the efi technique enterprise resource planning solution to facilitate the collection and integration of companywide information in the office and on the production floor for automated, efficient, and profitable business management. A low octane gasoline is suitable for a low compression engine. We take a look at seven cool systems that will banish your laptop from the garage. When the fuel level in the bowl drops, the float also drops permitting additional fuel to. The bosch d jetronic analog system was widely used by volvo and vw. Modern automobiles use electronic fuel injection efi in their fuel delivery system in order to increase the efficiency. Design of purified water and water for injection systems. Our framemount inline pump kit comes with the fuel pump and many items. The efi engines run more smoothly, with lower emissions and fuel consumption.
Electronic fuel injection systems require much more fuel pressure than a carburetor. Efi basics training course evans performance academy. Upon booting to the efi shell, the embedded os always looks for a file named startup. If you want to learn efi tuning, lets start with the basics. Installed the holley efi system about 6 weeks ago the only problem with the system is after i drive the car for say 30 minutes, turn off the engine then about 20 minutes later when i start to drive again it will not idle for a few seconds and i have to feather the throttle pedal to keep it running until it decides to run and idle on its on. The fitech go efi system is the industrys most advanced throttle body efi system and also the easiest to install. This presentation is about complete description of efi system. The sniper efi system requires a high pressure fuel pump capable of operating at 60 psi with at least 50 gallon per hour of fuel flow more fuel flow may be needed for higher horsepower engines. The first system uses continuous injection where the fuel is squirted into the inlet port all the time the engine is running. Uniti automobile electrical and electronics electrical. Principle and working of electronic fuel injection system. If you have any questions about this system or instruction manual, please contuct us. Email first, 2 phone calls are often filled with basic questions on efi and computer skills which. A simple, clearly arranged pc program is used to set up the electronic injector.
Turn the ac on, and drive in d for automatic, or in case of manual transmis. Quickstart manual sniper efi installation instructions congratulations on your purchase of a new sniper efi throttle body system built by craftsmen to exacting standards in our bowling green, kentucky facility. When combining the 30012 go efi system with the 50001 inline pump, it is suitable for engines up to 600 hp. The charging system of an automobile has three basic components such as alternator, regulator, and the interconnecting. Selftuning efi systems dummyproof fuel injection is here and simpler than ever. Basic efi electronic fuel injection fuel injection throttle scribd. The efi extensible firmware interface system partition or esp is a partition on a data storage device usually a hard disk drive or solidstate drive that is used by computers adhering to the unified extensible firmware interface uefi. The fuel tank contains a fuel gauge sending unit, a filler tube and a fuel pump. Pdf this paper describes two advanced electronic fuel injection systems for small. Chevrolet used the tpi system from 1985 until the introduction of the lt1 in 1992.
Following are a few basic tuning terms used when tuning programmable efi systems. Shop for affordable electronic fuel injection systems developed using oemlevel components, walkthrough fitech fuel injection. For more details, please download the ecocal software manual. Selftuning efi systems popular hot rodding hot rod.
Sensors located in the engine and throughout the rest of. The injectors are one of two types, depending on the injection system. Completing this 12 part video series is going to give you the most important efi information for a novice tuner. Bosch developed an electronic fuel injection system, called djetronic d for druck, german for pressure, which was first used on the vw 1600tle in 1967. The efi system is composed of three basic subsystems. Yet we can actually trace efi s roots back way before thento the systems developed by robert bosch in the late 60s and early 70s for volkswagen and other european carmakers. This basic manual contains the information necessary for the installation of the throttle body, wiring, and sensors. Ag engg 243 lecture 6 4 two conditions are essential for efficient operation of fuel system. The powerbox electronic fuel injection system has been designed to allow any. One of the more commonly misunderstood aspects of electronic fuel injection efi is how to select the correct size fuel injectors, fuel pump and mass air flow maf sensor for a particular engine horsepower output. We carry many efi systems many selftuning and selflearningfrom the top players in engine performance, including msd ignition, edelbrock, holley, fast, accel, chevrolet performance, quick fuel, and more. This proportion is in the range of parts air to 1 part fuel for best power, 15 to 1 for best emissions and 17 to 1 for best economy.
It should be used in a high compression or turbocharged engine. Fi is a fuel injection system for small displacement motorcycle, and this system. After install the efi system, the engine doesnt start, why. Youll learn the different types of systems available, what components are needed and how each one works, and youll find out how injection and ignition systems operate and how to set.
This article is intended for those people who have had little experience with electronic fuel injection and would like to have a handle on the basics. Automobile electrical and electronics electrical components in automobile automobile electrical system has gradually evolved over the years and today it assimilates automatic computer control of the automotive mechanics. A mechanical fuel pump that provides about 57 psi wont do the trick so youll need an electric fuel pump. The following information is intended to offer a very brief tutorial on properly selecting the most common efi components. Do not loosen or tighten the white painted bolts and screws of. Maximize the power, efficiency, and performance of your engine with a new electronic fuel injection system right for your application. When using the 8injector 30012 go efi system and the fuel command center 2, the system is suitable for engines making up to 800 hp. The fitech go efi system is the industrys most advanced throttle body efi system and. Principle of efi efi is an indirect, pressurized injection system with injectors operated by a solenoid. To start viewing messages, select the forum that you want to visit from the selection below. An electric fuel pump supplies sufficient fuel, under a constant pressure, to the efi injectors. Standard spark ignited, 4 stroke engines require that the correct proportion of fuel be mixed with the incoming air for efficient operation. When combining the 30012 go efi system with the 40005 inline pump, it is suitable for engines up to 600 hp.
On the other hand, electronic fuel injection systems employ a variety of sensors that tell a computer exactly what the engine is doing at any given moment. Summary in this course, you were exposed to the different methods and fiery tools available to configure your new fiery server. A faulty efi system is often related to poorly connected or corroded connectors. The fitech go efi system is the industrys most ad vanced throttle body efi system and also the. We take a look at both mechanical and virtual side of efi tuning so you have a firm foundation for moving along to our efi advanced and system specific training courses. At its most basic, the system works by comparing the throttle angle or alpha. Rather than steering our customers toward a particular system, we prefer to enable them to make an informed decision when selecting an aftermarket efi system. Basic componentswhile electronic fuelinjection systems became the norm during the 1980s, these were advanced digital versions of simple designs that. It includes everything youll need to get started tuning efi systems. Instruction manual for the following go efi systems 30003 go street efi system this quick start manual is designed to get you up and running with the go street kit and either the 40003 fuel command center or the 40005 inline fuel delivery kit. Efielectronic fuel injection systems at summit racing.
Electronic fuel injection system efi basics car craft. Do not push the fuel pump base under the fuel tank when the fuel. Efi as applied to automobiles in mass production use was first introduced in the late 1960s. Basic diesel engine operation diesel engine force air by the intake valve into the cylinder high compression ratio heats the air enough to ignite the fuel fuel is injected into the cylinder at high pressure the amount of fuel injected suits to the load and controls engine speed. Using efi basic instructions for using the extensible firmware interface efi 2 revision 2. The fuel inlet system must constantly maintain the specified level of fuel as the basic fuel metering systems are calibrated to deliver the proper mixture only when the fuel is at this level. Pdf development of an electronic fuel injection system for a 4. When using the 8injector 30012 go efi system and the fuel command center, the system is suitable for engines making up to 800 hp. Design of purified water and water for injection systems hugh hodkinson. Principle of efi efi is an indirect, pressurized injection system with injectors operated by.
The following guide primarily discusses multiport electronic fuel injection systems since it is the dominate system used in most performance and racing applications. Pdf advanced electronic fuel injection systemsan emissions. This article will explore these questions and give you all the information you need about efi. The quick and easy approach to electronic fuel injection with the fast ez efi system duration. The octane rating of a gasoline is a measurement of the ability of the fuel to resist knock or ping. The holley v5 efi softwareecu firmware finally added an ac activated option for the electric fans.
When selecting a pump, and lines, be sure each component is designed to perform at high pressure. Electronic fuel injection efi drove carburetors out of newcar production for good about a decade ago. Basic efi electronic fuel injection free download as powerpoint. Most of the theory and operation of multiport systems is also applicable to throttlebody electronic fuel systems. It is this evolution that is the primary focus of this book. Automotive fundamentals 1 understanding automotive electronics 3 environmental regulations and an increased need for economy have resulted in electronics being used within a number of automotive systems.
After comparing that information to a set of known parameters called a map, the computer determines exactly how much fuel is required to maximize power while creating the lowest emissions. By the end of this module you be able to identify and use the correct tools to update your fiery server with the latest operating system and software applications. So, what do we use efi for and is it possible to delete it when you no longer need it. User manual for efi fuel systems pg engineered control solutions. Perhaps the most readily identifiable smallblock efi system is the gm tuned port injection tpi system.
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