Carburetor Vs Fuel injector | Which is Better ? | By Automotive Engine Hindi
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In this video, I explained the difference and the advantages,disadvantages between carburetor and fuel injection system.
Unlike carburetors, a Fuel Injection system is comprised of a complex set of electronics and sensors. In carbureted systems the fuel gets drawn from the tank, while in a Fuel Injected system it depends on a fuel pump installed inside the tank for a fine-grained control over fuel flow. The fuel injection nozzle also goes directly inside the combustion chamber. The pressurised fuel is very well atomised as a homogenous mist in case of FI systems, allowing for very efficient and clean combustion.

The fuel supply in case of FI is controlled through an electric brain, or ECU, which constantly makes complex calculations at a very high frequency to deliver the best air-fuel mixture possible. Based on a whole variety of parameters such as engine speed, throttle position, engine temperature and load etc the ECU directs the injectors to let in just the right amount of fuel with every intake stroke to facilitate the most efficient combustion.

Now, while the efficacy of an FI system has been proven to be superior to carburetor, it’s not that the two systems don’t have their distinct advantages and disadvantages. Here, we will discuss the merits and pitfalls of the two systems in brief bullet points.

Advantages Of Carburetors
Carburetors cost less, are simple in operation and easy to repair or replace
Carburetors allow the users to tune them to their requirements
Since carburetors are not integrated into the engines, they can be serviced or replaced without touching the engine
Disadvantages Of Carburetors
Not the most efficient systems, dated design
Most carburetors have a slight lag, which results in relatively slow throttle response
Certain components like diaphragm are relatively delicate and prone to damage
Air fuel mixture fluctuates, affecting engine smoothness
Advantages Of Fuel Injection
Optimised air-fuel mixture and atomisation allows for cleaner, more efficient combustion
Sharper throttle response
Better fuel efficiency and marginally more power than carbureted systems
They are typically maintenance free and does not break down
Disadvantages Of Fuel Injection
Substantially more expensive than carburetors
Cannot be repaired with simple tools, have to be replaced, which is expensive.
Cannot be customised, unless you go for custom ECU maps, which again is expensive
So while the advantages of an FI system are pretty clear despite its cost, you’d still be one among millions who still put their faith in the good old carb. Which tech do you prefer, and why? Do let us know your opinions through comments below.

To understand clearly, please watch the full video.


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