06/03/2015
EFI versus Carburetor Engines!
Fuel Injection Systems
Fuel injection systems are becoming more popular for those wanting the best performance from their engines. There are two different versions of fuel injection - port fuel injection and direct injection. Port fuel injection is the most commonly used and direct fuel injection is the latest developed fuel injection system. This system was designed specifically for four or two stoke engines. The main benefits to using direct injection is that the amount of fuel and air can be perfectly released and then injected into the cylinder according to the engine load conditions. The electronics used in the system will calculate this information and constantly adjust. This type of controlled fuel injection results in a higher power output, greater fuel efficiency and much lower emissions.
The Carburetor
The carburetor contains jets that will push the gas into the combustion chambers. The amount of fuel that can flow through these jets depends completely on the amount of air that can be pulled into the carburetor venture. The main issue with obtaining the best performance using a carburetor is that it can't monitor the air to fuel ratio for each individual cylinder. If there was a carburetor for each cylinder then this would not be an issue. 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.
