Are you looking to improve your Mazda’s performance without breaking your bank? Which aftermarket Mazda performance part can help you squeeze the most horsepower and torque without sacrificing fuel efficiency? Most people would say exhaust systems, and they’d be right. What many of them don’t realise, however, is that performance fuel injectors can also play a significant role.
Performance fuel injectors accomplish this by providing more fuel to the combustion chamber, increasing power and performance significantly. Of course, with more fuel being injected, you have to make sure your combustion chamber gets enough air. In other words, more fuel doesn’t automatically equal more power, but tuned vehicles have a difficult time burning enough fuel to get the most out of the performance parts. Think of the fuel injector as a power supply on a computer. No matter how good your graphics card is, without a proper power supply, you won’t get anything out of it. Let’s get into more detail about this sought after Mazda performance part.
How do They Work?
As briefly aforementioned, and as their name implies, fuel injectors deliver fuel to the combustion chamber. This is done with the help of a fuel pressure regulator. The fuel injector basically sprays a mist of gas into the combustion chamber. Up until recently, this was done using a carburettor, which was neither fuel-efficient nor harmless to the environment.
Nowadays, there are two basic types of fuel injectors – electronic and mechanical. Just like everything else, modern fuel injection systems are electronic. Electronic parts are easier to tune and match the specific needs of the driver. While a stock fuel injector is designed to deliver just the right amount of fuel to a stock engine, a tuned engine requires more. So, for instance, a turbo or supercharged engine is capable of delivering more air to the combustion chamber, so you’ll also need an aftermarket fuel injector to keep up with fuel.
Things to Consider
In a stock Mazda, the fuel injector will operate at about 80% capacity. This is good enough for everyday commuters that haven’t modified their vehicles. For gearheads who have installed aftermarket performance parts, the fuel injector will perform at 100%, depending on the parts. If your vehicle is turbocharged, however, you’ll need more than your stock fuel injector offers. Otherwise, your turbo upgrade will be in vain.
Furthermore, make sure the fuel injector you choose is suited for your specific engine. In other words, consider how much NOS you’ll want to add to your Mazda. Fuel injectors that provide too much fuel can also hinder performance and potentially damage your engine. Similarly, if you get a diesel fuel injector on a petrol engine, you’ll come across issues. Performance fuel injectors can cost a few hundred dollars, so you don’t want to waste money and time on buying the wrong one.
Besides flow rate, the spray pattern of the injector is also important, especially if you have a direct injection engine. Volkswagen Group switched to such a design to get better combustion and draw more power. So, make sure your engine can actually withstand the extra power. As aforementioned, everyday commuters who drive unmodified vehicles don’t need a performance fuel injector.
Other Aftermarket Parts to Install
Your vehicle’s parts work together to propel it forward, so you may not get the most performance upgrade just by installing a fuel injector. Other parts and modifications that can help you get the most out of your fuel system include reprogramming the engine control unit, which is basically the computer that controls your engine’s parameters in terms of air and fuel intake, on top of other things; a fuel pump, which can provide better fuel flow for optimum efficiency and power; an adjustable fuel pressure regulator that can ensure your fuel injector runs on the right pressure, and fuel treatment, which can boost your fuel economy.
Potential Problems After Installing
If you’ve just installed your new fuel injector, there are a few things that you may notice, which means there’s probably something wrong. Here are the most common warning signs:
- Slow acceleration
- Engine stalling when driving
- Rough idling
- Check Engine indicator
- Odour in the fuel
- Smoke coming out of the engine bay
Fuel Injector Maintenance
Performance fuel injectors can cost up to several hundred dollars, so it only makes sense that you take care of them. Different models have different maintenance requirements, and the type of vehicle you drive will also play a role. However, as a general rule of thumb, you should change your fuel filters every 20.000-25.000 kilometres or once a year. Sometimes, the warning signs listed above may be the result of a worn-down fuel filter rather than a faulty fuel injector.
Furthermore, make sure you clean your fuel injection system every 30.000 kilometres or so. This is standard procedure for electronic injection systems. A dirty system can slow down performance, so get a fuel injector cleaning kit and get busy. Consult your mechanic for advice on how often and when you should clean your fuel injection system.