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Carburetor or Fuel Injection systems.
Which ever system is chosen by the client or exists on the engine already, we can fit and configure for optimum performance whatever the application.
A well set up carb system can deliver almost as much power as a fuel injection system, but fuel injection offers a number of additional substantial benefits and gives a great degree of configurability when combined with modern sophisticated engine management systems.
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Operational benefits to the driver of a fuel-injected car include smoother and more dependable engine response during quick throttle movements, easier and more dependable engine starting, better operation at extremely high or low ambient temperatures, increased maintenance intervals, and increased fuel efficiency.
An engine's air/fuel ratio must be accurately controlled under all operating conditions to achieve the desired engine performance, emissions, driveability, and fuel economy. Modern electronic fuel-injection systems meter fuel very accurately and precisely, and use closed loop fuel-injection quantity-control based on feedback from an oxygen senser (or "O2 sensor").
This enables fuel-injected engines to produce less air pollution than comparable carbureted engines. Properly-designed fuel injection systems can react rapidly to changing inputs such as sudden throttle movements, and will control the amount of fuel injected to match the engine's needs across a wide range of operating conditions such as engine load, ambient air temperature, engine temperature, fuel octane level, and prevailing barometric pressure.
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A multipoint fuel injection system generally delivers a more accurate and equal mass of fuel to each cylinder than can a carburetor, thus improving the cylinder-to-cylinder distribution.
Fuel injection generally increases engine fuel efficiency. With the improved cylinder-to-cylinder fuel distribution, less fuel is needed for the same power output. When cylinder-to-cylinder distribution is less than ideal, as is always the case to some degree with a carburetor or throttle body fuel injection, some cylinders receive excess fuel as a side effect of ensuring that all cylinders receive sufficient fuel. Power output is asymmetrical with respect to air/fuel ratio; burning extra fuel in the rich cylinders does not reduce power nearly as quickly as burning too little fuel in the lean cylinders.
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A fuel-injected engine often produces more power than an equivalent carbureted engine. Fuel injection alone does not necessarily increase an engine's maximum potential output, for increased airflow is needed to burn more fuel to generate more gas molecules to generate more mechanical power.
The combustion process converts the fuel's chemical energy into heat energy, whether the fuel is supplied by fuel injectors or a carburetor. However, airflow is often improved with fuel injection, the components of which allow more design freedom to improve the air's path into the engine. In contrast, a carburetor's mounting options are limited because it is larger, it must be carefully oriented with respect to gravity, and it must be equidistant from each of the engine's cylinders to the maximum practicable degree.
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These design constraints generally compromise airflow into the engine. Furthermore, a carburetor relies on a restrictive venturi to create a local air pressure difference, which forces the fuel into the air stream. The flow loss caused by the venturi, however, is small compared to other flow losses in the induction system.
In a well-designed carburetor induction system, the venturi is not a significant airflow restriction. Aside from airflow considerations, fuel injection offers a more homogeneous air/fuel mixture due to better atomization of the fuel entering the cylinders.
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