Difference between carburetor and fuel injection

So with a carburetor, the best fuel to air ratio for each cylinder is approximated for the best performance. However, carburetors do last longer than fuel injection systems and are favored in motor sports. The carburetor is currently much less expensive than the electronic fuel injection systems.

Again, because fuel injection and modern electronic controls are more accurate, fuel delivery can be tuned to match driver demand. Carburetors are precise, but not accurate, in that they cannot account for changes in air or fuel temperature or atmospheric pressure.

Most car manufacturers stopped using carburetors in the late 1980’s because newer technology was coming out, such as the fuel injector, that proved to be more efficient. There were only a few cars that continued to have carburetors, such as the Subaru Justy, until about the early 1990’s.

A fuel injection conversion replaces a carburetor with a fuel injection system. There are fuel injection conversion kits that make the entire process very easy. Older cars have carburetors, but electronic fuel injection (EFI) offers greater fuel efficiency and improved performance.

In passenger car petrol engines, fuel injection was introduced in the early 1950s, and gradually gained prevalence until it had largely replaced carburetors by the early 1990s.

A carburetor atomized the fuel and mixed it with the optimal ratio of air for the engine to burn. Since they’ve been around for so long, carburetors were very cheap to manufacture and easy to install in cheap cars. The last car to have a carburetor was an Isuzu pickup from 1994; it switched to fuel injection in 1995.

— for the 1990 model year, though production was terminated early to make way for the all-new ’91 Prelude (which, of course, featured fuel injection across the line).

Larger throttle body and injectors

Depending on what type of engine you have, you can gain as much as 10-20 more horsepower and comparable torque. There is a catch, however. Also remember that a larger throttle requires higher-flow fuel injectors. Throttle body and injector size are proportional.

Fuel Injection Advantages

Better engine life. It results in Enhanced engine efficiency. It also offers better fuel efficiency. More efficient burning of fuel results in cleaner environment.