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The fuel injector opens and sprays the pressurized fuel into the engine when signaled by the engine control unit. The duration of the injector being opened is proportional to the amount of fuel delivered. Depending on the design of the system, the timing when the injector opens is either relative to each individual cylinder, or multiple cylinder injectors may be signaled to open at the same time.
The proper pressure is controlled by the fuel pressure regulator. In many cases, the fuel is also divided by means of a fuel rail to supply the different cylinders of the engine. Finally, the injectors are ordered to inject the fuel needed for combustion.
Various versions of fuel-injected engines were designed and manufactured as early as 1902, with most diesel engines being fuel-injected by the 1920s. The fuel-injected gasoline engines took longer to gain a foothold, but became more prominent during the Second World War, despite the fact that most commercial gasoline engines still opted to use carburetors at that time.
Making modifications or upgrades to your engine may require you to upgrade your fuel injectors as well. If you are changing your fuel system or your exhaust headers, you will need to replace your fuel injectors with a high performance injector. Replacing cylinder heads or throttle bodies? You will need to replace your fuel injectors. So replace them with the best. Vivid Racing carries fuel injectors from the top manufacturers in the high performance industry. If you are replacing your fuel injectors you may want to Fuel Pump, Fuel Filter, Fuel Regulator and your Fuel Cap.
Fuel Pump
Carbureted engines often use low-pressure mechanical pumps that are mounted outside the fuel tank, while fuel-injected engines often use electric fuel pumps that are mounted inside the fuel tank (and some fuel-injected engines have two fuel pumps: one low-pressure/high-volume fuel pump in the tank and one high-pressure / low-volume pump on or near the engine. If the fuel pressure is too high, the engine will run rough and rich, not burning all the fuel that is pumped, making the engine inefficient and polluting. If the pressure is too low, the engine may be lean, misfired or stalled.
Fuel Regulator
The fuel pressure regulator is a component of engine management that is found in one form or another on virtually all internal combustion engines. It is a component of the vehicle's fuel system and, as its name implies, is responsible for regulating the pressure of the fuel flowing through the system.
Fuel Filter
A fuel filter is a critical part of the system as it protects your engine from harmful debris. The fuel filter screens the dirt and rust from the fuel, preventing them from entering the engine and causing damage.
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Vivid Racing carries Performance Fuel Injectors for most performance cars. Here are just a few.
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Vivid Racing carries racing and high performance fuel injectors from all the top manufacturers in the automotive industry. Our manufacturers include: STI Injectors, RC Injectors, Agency Power, Deatschwerks, Delphi, HKS, JWT, Power Enterprises, PTE, RC Injectors, SARD, SP Engineering, STI, Tomei and Ultimate Racing.
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