There are two different versions of fuel injection port fuel injection and direct injection. Read as the editor discusses carburetor versus fuel injection. I have built pro street chevys for 40 years but never a dodge. In fact, that very reason is a large part of why injection systems started replacing carburetors during the 1970s. Jun 30, 2016 electronic fuel injection vs carburettors 1. Chapter seven fuel injection the electronic fuel injection system was designed and built by bosch and has been used successfully on several vw models and other cars. Jan 27, 2012 the carburetor is currently much less expensive than the electronic fuel injection systems. On the other hand, fi provides much better throttle response, if you have a fuel controller, you dont have to take your carb apart every time you want to change your fuel settings, you just push buttons. This is an important discussion as the fuel delivery is an important component of four stroke cycle, the engine and by extension the entire vehicle.
Why fuel injection has replaced carburetors on motorcycles. Nov 06, 2016 carburetor vs fuel injection which is best. Fuel injection, because it can be more precisely controlled, results in more efficient use of fuel, reduced fuel consumption and fewer emissions, which is the main reason it began to replace the carburetor in the 1970s. After my research i have discovered that the advantages are heavily directed towards the fuel injection. The fuel injection nozzle is provided directly in the combustion chamber. Electronic fuel injection system for a 2stroke allterrain. Installation takes mechanical expertise, knowledge of your motorcycle and experience interpreting electrical wiring diagrams. Read about the ins and outs of carburation and fuel injection in high performance ford applications. Every bike in my garage thats a total of eight has a carburetor. May 06, 2008 fuel injection meters the fuel much more precisely than the carburetor. Carbs tend to do 1 or 2 things very very well, meaning if you want an all out race motor or a constant rpm boat motor, its very easy to get it to do that very very very well. Carburetors vs fuel injection muscle mustangs and fast. Which offers the best performance, carburetor or fuel injection, is highly debated question among car enthusiasts. The fuel pump pulls fuel from the gas tank, pressurizes it and forces it to the fuel injectors.
The main difference between carburetor and fuel injection system carburetorzfuel is atomized by processes relying on the air speed greater than fuel speed at the fuel nozzle, zthe amount of fuel drawn into the engine depends upon the air velocity in the venturi fuel injection systemzthe fuel speed at the point of delivery is greater than the air speed to atomize the fuel. You must select a pump that will flow the required amount at the planned pressure. Even lower capacity motorcycle engines are also getting hitech technologies and features. This article will be the first in a series of little missives in which we take a look into that issue. The process of preparing this mixture is called carburetion. See our fuel injection efi pro flo estreet universal marine fuel injection kit. Electronic fuel injection uses signals from several sensors located on the engine. Apr 05, 2019 a fuel injection sprays calculated spurts of fuel directly into the combustion chamber. How to convert a carbed motorcycle to efi it still runs. Starting in carbureted engines, the fuel air mixture meets in the carburetor. The fuel is forced through a small nozzle under pressure in the combustion chamber where it ignites and produces the power stroke. May 01, 2017 emissions and fuel efficiency when it comes to fuel efficiency, injection systems simply cant be beat. He says that is much simpler than the fuel injection, specially because we are going to drive from.
Operation,diagnosis,and service 673 figure 297 the vacuummodulated pressure regulator controls system fuel pressure with a springloaded diaphragm. In the fuel injected engine, the fuel and air do not mix until they reach the cylinder. The air intake is measured by the air sensor location inside. Carburetor vs fuel injection is debated as fuel delivery systems. If you require a fuel system component at the time of your injector service, please let us know and we will provide you with a price quote and availability. However, it is possible to obtain an efi kit and fuel pump from a motorcycle accessory outlet and convert a carbed motorcycle to efi. The carburetor, a device which atomises the fuel and mixes it with air. Aug 20, 2010 probably one of the most controversial discussions among motorcycle enthusiasts is the difference between carbureted and fuel injected bikes, as each of them has its own avid supporters. To start viewing messages, select the forum that you want to visit from the selection below. Fuel injector vs carburetor gasoline, motor oils, concept.
Being the oldschool type, i only have fuel injection on the everyday drivers, so others can offer their input on that aspect of your build. I quads with both, and i prefer the fi myself, but i am frightened of the day that it start giving me trouble. Incidentally, im thinking about it for a corvair engine 164ci. Plenty of go for any situation, but the primary focus was always optimum fuel economy, for me. Perhaps not all the bikers know about the functionality of a carburetor on their motorcycle or has a.
Instead, it uses a mechanism for measuring the amount of airflow into the engine, and then a computer usually an electronic computer, but some very early versions used a mechanical computer works out how much fuel is required, and injects the fuel into the airflow. A carburetor relies on a float and needs to regulate the amount of fuel passing through to the engine. Increase fuel efficiency with direct fuel injection system design. Wondering what the benefit to car vs fuel injection or vise versa. What i am wandering is if fuel injection bikes are harder to kick start.
Im often amazed at how many motorcycle people know the way things are, but have little interest in understanding why things are the way they are. The direct fuel injection system design incorporates a fuel injection assembly to deliver continuously variable injection flow rate by controlling the injector needle position. May 29, 2017 hey there mrkrish onthego here fuel injection vs carburetor explained hope you like the video my gears. Od1620 us army correspondence course program 6 credit hours general the purpose of this subcourse is to introduce the characteristics of gasoline and diesel fuel systems. It has become the primary fuel delivery system used in gasoline. Hey there mrkrish onthego here fuel injection vs carburetor explained hope you like the video my gears. Based on these signals, a computer decides the best fuel air mixture for the engine. I dont believe drag racers in the 60s and 70s would have spent that much on mechanical fuel injection for a measly 10hp. Fuel injection generally increases engine fuel efficiency. Fuel injection systems are becoming more popular for those wanting the best performance from their engines. Fuel injection vs carburetor what motorcycle should i. It has become the primary fuel delivery system used in automotive engines, having replaced carburetors during the 1980s. Fuel injection uses many different sensors to detect things like weather changes, altitude, barometric pressure i think is what thats called, and throttle position to deliever the correct amount of fuel to the cylinders as needed to maximize power and economy in the operating conditions around you. In most cases, a highoutput fuel pump is needed to meet the demands of the system.
All information, illustrations and specifications con. Ive always liked the 4 eye look but know 86 was the only fuel injected 4 eye so i always looked at fuel injection 8693. Increase fuel efficiency with direct fuel injection system. Factory rating with carbs was 140hp, but throw that number out. Speaking from an outsider of the world of high end engine build prospective so i will feel no ill will at being corrected. The liquid fuel jet atomizes into drops and entrains air. In a fuel injection engine, each cylinder receives the same amount of fuel. Marren fuel injection stocks a large inventory of fuel injection components, including fuel pumps, sensors, etc. An efi system relies on injectors and a fuel pump to control fuel flow and to feed the engine. Edelbrock is the most respected name in performance. May 16, 2016 so i have recently opened my options up to 85 and older mustangs with a carb.
I dont know if i should buy the 2009 or wait for the 2010 to come out which should have fuel injection. Small particles and impurities in the fuel can be a little more problematic with efi. Carbureted and fuel injected engines have their pros and cons. Probably one of the most controversial discussions among motorcycle enthusiasts is the difference between carbureted and fuel injected bikes, as each of. Fuel injection is the introduction of fuel in an internal combustion engine, most commonly automotive engines, by the means of an injector all diesel engines use fuel injection by design. Fuel injection doesnt reply on a drop in pressure sucking fuel into the airflow. Complete service information for the fuel injected engine is beyond the scope of this. He says that is much simpler than the fuel injection, specially because we are going to drive from california to argentina in it.
How to complete a carbtoefi fuel injection conversion. For the best answers, search on this site fuel injection is far better than carburetor. Should i buy a fuel injected or carburetor riding lawn. What is the difference between a carburetor and a fuel. Home technology mechanics difference between carburetor and fuel injection. Throttle body injection is the most simple type of efi and the closest to carburetion in operation. The age old carburetors are slowly getting replaced by the newer fuel. Port fuel injection is the most widely utilized form of injection today. Thats because of the main advantage that injection has over carburetion. Electronic fuel injection system for a 2stroke all. Older cars have carburetors, but electronic fuel injection efi offers greater fuel efficiency and improved performance. Should i buy a fuel injected or carburetor riding lawn mower. Id be adding a bunch of compression, a bunch of cam, roller rockers, etc. Most of the fuel is injected through nozzles that are mounted directly into the combustion chamber of the cylinder heads.
Fuel injection system zthe fuel speed at the point of delivery is greater than the air speed to atomize the fuel. Petrol engines can use gasoline direct injection, where the fuel is directly delivered into the combustion chamber, or indirect injection where the fuel is mixed with air before the intake stroke. The carburetor meters fuel only by mechanical linkage and engine manifold vacuum. Crosscountry driving was 95% of the miles we put on it. Hello i am looking to get a new bike and i dont know what would be a better choice.
One of the most difficult parts of the diy fuel injection. The mixture then goes to each cylinder through the air intakes. An iterative learning control feedback circuit controller is utilized to provide the optimum fuel injection rate at all times. If this is your first visit, be sure to check out the faq by clicking the link above. While carburetion may still hold a small advantage in the smoothness of offtoon throttle transitions like getting back on the gas from a closed throttle in a corner, or when driving at a very low speed, particu. Carburetor vs fuel injection pros and cons youtube. May 28, 20 for the best answers, search on this site fuel injection is far better than carburetor. This is primarily because injections systems can be more precise and theyre more easily controlled than the carburetor. Subscribe to get the latest videos, articles, and quizzes that make you a smarter, safer pilot. Fuel injection considerations one other item to consider is the fuel pump, as well as its relationship with the fuel pressure regulator. There is a pressure pump which pressurizes the fuel which allows it to be atomized and hence inside the combustion chamber, the spray is in the form of a mist which allows for complete and cleaner combustion. In an internal combustion engine, the fuel air ratio of the fuel air mixture has significant influence on the performance of the engine, since it directly controls the power output of the engine. There are fuel injection conversion kits that make the entire process very easy.
The only down side and its not really a downside is efi requires a better fuel filtration system than a carb engine. Dyno testing a holley double pumper vs custom stack injection duration. By contrast, a fuel injection setup is extremely simple. Although most small engines use the carburetor system for its simplicity and cheap prices, and less maintenance costs, fuel injection is the perfect choice for the modern vehicles for better performance, lower emissions, and fuel economy. Fuel is injected above the throttle blades by one or more fuel injector nozzles. My friend recommended me to remove the fuel injection and replace it with a carburetor. A fuel injection conversion replaces a carburetor with a fuel injection system. Perhaps not all the bikers know about the functionality of a carburetor on their motorcycle or has a very little interest in it. The xt1 lt46 efi fab is now at your local big box store such as home depot and your local cub cadet dealerships. Both fuel and air are carried throughout the entire intake tract. It got hard to ignore fuel injection around that time, anywho.
Carburetor vs fuel injection motorcycle fuel systems. Aug 15, 2011 read as the editor discusses carburetor versus fuel injection. But now that you know a little more about the difference between the two systems, flying both types, and troubleshooting their problems, should be a little more simple. Modified on apr 5, 2019 by abhijeet singh rathore for tvs apache rtr 160 4v. Many believe that performance is best with a carburetor while others insist that the only way to go is with fuel injection gasoline. With a carburetor engine, one cylinder will receive more fuel than another cylinder. Carburetor vs fuel injection in an internal combustion engine, the fuel air ratio of the fuel air mixture has significant influence on the performan.
These days motorcycle engines are getting so improved in terms of power delivery and fuel efficiency. If you want reliability, with no electronic crap to worry about, maybe you prefer a carb. Fuel injection is a system for admitting fuel into an internal combustion engine. The tuning for how much fuel is injected in a few various scenarios is all mechanical setscrews, spr. With todays bikes coming with all the technology loaded, one of the most common changes you will find is the fuel delivery system.
The first fuelinjection system on a streetbike debuted in 1980, but for the most part, carbs were how motorcycles mixed air and fuel right up to the turn of the century. An electronic fuel injection system efi is a more complicated fuel system than a carbureted system. The first efi riding lawn mower has been debuted by cub cadet. Basically, during combustion the piston compresses the air fuel mixture in preparation for ignition which is know as a power. A small amount of fuel is injected through the supercharger to keep it cool and lubed.
Fuel tank the fuel tank contains a fuel gauge sending unit, a filler tube and a fuel pump. Aug 06, 2009 efi is just a more precise fuel air ratio and delivery system at all rpm ranges. July 15, 2014 mike aguilar drag racing, fuel delivery, general engine, hot rods, howto and tech tips, tech, tech tips 0. As a rule, as the pressure goes up, the flow capacity goes down. Difference between carburetor and fuel injection compare. I can typically tell if a cars engine is carbureted or injected just by smelling the exhaust as the car passes me.
This discussion will include a description of the principles, construction, and function of these two. If i can smell unburned fuel, its got a carburetor. Electronic fuel injection tech we put dynatek racings new fuel injection to the test against a classic carburetor. Carb vs fuel injection pavement sucks your offroad. In a carburetor system, the fuel is injected into the neck of the carburetor sort of a venturi where it mixes with air to produce charge. We take a closer looks at how the two fuel delivery systems function, their positives and negative aspects. Fuel injection uses many different sensors to detect things like weather changes, altitude, barometric pressure i think is what thats called, and throttle position to deliever the correct amount of fuel to the cylinders as needed to maximize power and economy in the operating. Top fuel dragsters and funny cars use mechanical fuel injection.