Mercedes Mullins
The 2002 Subaru WRX comes with a set of four fuel injectors. The car's fuel injectors are specifically engineered to maintain precise control of fuel delivery and atomization, resulting in increased power and improved throttle response. The injectors are flow-matched dynamically to ensure that each injector provides fuel within a ±1% tolerance of the others.
| Characteristics | Values |
|---|---|
| Model | 2002 Subaru WRX |
| Engine | 2.0 Turbo |
| Fuel Injector Capacity | 2200cc |
| Fuel Injector Type | Fuel Injector Clinic 1440cc High-Z Injector Set |
| Fuel Injector Part Number | 16611-AA521 |
| Number of Fuel Injectors | 4 |
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What You'll Learn
Fuel Injector Clinic 2150cc Injectors
The 2002 Subaru WRX features four fuel injectors. One option for replacement fuel injectors for this model is the Fuel Injector Clinic 2150cc Injector Set (High-Z).
The Fuel Injector Clinic 2150cc Injectors are high-performance fuel injectors that are compatible with the 2002 Subaru WRX, as well as later models up to 2014. They are designed to deliver high flow rates and superior performance, making them an excellent choice for those seeking increased power and improved throttle response.
These injectors are the largest high impedance injectors available on the market and are compatible with a wide range of fuel types, including pump gasoline, E85, Q16, VP Import, and other MTBE oxygenated race fuels. However, it is important to note that the internal construction of this injector includes a seal that may swell when in contact with MTBE from oxygenated fuels, rendering it unsuitable for use with those specific fuels.
The Fuel Injector Clinic 2150cc Injectors feature state-of-the-art Data Match Technology, which provides precise flow matching and latency value information. This technology significantly improves the ECU's ability to control the injectors, resulting in enhanced drivability and performance. Additionally, each injector is individually serial numbered and covered by a lifetime warranty, ensuring both reliability and peace of mind.
Overall, the Fuel Injector Clinic 2150cc Injector Set (High-Z) offers a high-performance, reliable, and compatible option for those seeking to upgrade the fuel injectors in their 2002 Subaru WRX, or later models up to 2014.
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Injector Dynamics ID1750-XDS Fuel Injectors
The Injector Dynamics ID1750-XDS Fuel Injectors are designed to fill the gap in the market between the ID1300 and the ID2000. The ID1750 is the successor to the ID1700 and offers several improvements. The fuel injectors have a higher dynamic flow rate with no increase in minimum fuel mass, better cylinder-to-cylinder balance at low pulse widths, and improved pressure sensitivity. The ID1750 also retains the same corrosion resistance that made the ID1700 famous, making it compatible with all known automotive fuels.
The ID1750-XDS Fuel Injectors are the result of a partnership between Injector Dynamics and Bosch Motorsport. A unique magnetic circuit makes the ID1750 immune to voltage and pressure sensitivity issues that are common in other high-impedance, high-flow injectors. The ID1750 performs well at high pressures, which are typical of current automotive systems. It is designed to be an all-fuel-compatible injector, capable of very high flow rates. The ID1750 will most often be used to deliver E85 to boosted engines or, occasionally, gasoline in extreme high-horsepower applications.
The Injector Dynamics ID1750-XDS Fuel Injectors are compatible with the 2002 Subaru WRX, as well as the 2002-2014 WRX and 2007-2021 STI. The ID1750 is also compatible with the 2011-2023 Mustang/Shelby GT350/F-150.
Accurate injector characterizations are the basis of all fueling calculations, and Injector Dynamics is the only motorsport injector supplier capable of generating these OEM-quality injector characterizations.
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DeatschWerks Bosch EV14 Fuel Injectors
The DeatschWerks Bosch EV14 Fuel Injectors are high-quality, high-flow fuel injectors designed for a range of Subaru models, including the 2002 WRX. These injectors are known for their excellent spray pattern and atomization, which results in optimized idle and tuning capabilities. They are a popular choice for those looking to increase the performance of their Subaru WRX.
The DeatschWerks Bosch EV14 Fuel Injectors are available in different configurations to cater to different needs. They offer three different lengths, two different O-ring diameters, and an impressive 10 different flow rates. This versatility allows customers to choose the combination of features that best suits their specific requirements. For example, the 750cc injectors with top feed conversion fuel rails are designed for the 2002-2014 WRX and 2007+ STI models, while the 1000cc injectors with top feed fuel rails are compatible with the 2002-2014 WRX and 2007+ STI models.
The DeatschWerks fuel injectors are renowned for their quality and performance. They are built using only premium OEM cores, ensuring a better fitment, easier tuning, and enhanced reliability. Each set of injectors is carefully balanced to within a 2% flow variation, providing precise fuel delivery and atomization. This results in increased power and improved throttle response, making them a popular choice for those looking to upgrade their fuel system.
Upgrading to DeatschWerks Bosch EV14 Fuel Injectors is particularly beneficial for those who have modified their car to include a larger turbocharger or increased boost pressure. The stock injectors in the factory setup may not be able to handle these modifications safely, but the DeatschWerks injectors provide the necessary fuel support to accommodate these changes. This ensures that the engine can produce more horsepower without compromising safety or performance.
Overall, the DeatschWerks Bosch EV14 Fuel Injectors are a top choice for 2002 Subaru WRX owners seeking enhanced performance, reliability, and customization options. With their advanced technology, quality construction, and versatile configurations, these injectors enable enthusiasts to unlock the full potential of their vehicles.
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Fuel Injector Clinic 650cc Injector Set
The 2002 Subaru WRX has four fuel injectors. One product that is compatible with this model is the Fuel Injector Clinic 650cc Injector Set. This injector set is designed to fit several car models, including the 2002-2014 Subaru WRX and the 2007-2021 Subaru WRX STI.
The Fuel Injector Clinic 650cc Injector Set is a high-performance option, featuring high-impedance Bosch cores that are E85 compatible and come with a lifetime warranty. These injectors are flow-tested and rated at 43.5 psi (3 Bar) and 90-degree fuel temperature, using CF-16B calibration fluid. They are designed to provide superior short pulse width control and state-of-the-art matching, making them easy to tune and resulting in great drivability.
The set includes all the necessary o-rings to fit the factory application for the listed vehicles. However, if you have aftermarket or unusual setups, it is recommended to contact the manufacturer before placing your order to ensure proper fitment.
Additionally, this injector set requires changing the injector plug on the wiring harness of your car. This can be done by soldering the included pigtails or purchasing optional plug-n-play adaptors for a simpler conversion.
The Fuel Injector Clinic 650cc Injector Set is known for its precise matching, utilising the brand's proprietary Data Match Technology. Each injector is individually serial numbered, and detailed information is provided on the Data Match Sheet, ensuring the most comprehensive flow matching and latency value data in the industry.
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Stock injectors vs. upgraded fuel systems
Stock injectors are designed to work with the factory setup of your car. While they may be adequate for a standard vehicle, they will quickly become insufficient if you start making modifications to increase horsepower. Upgrading your fuel system becomes essential when you make any changes that substantially boost your engine's power. For example, if you run a larger turbocharger or increase the boost pressure, you'll need a proper injector to handle the additional fuel flow.
The exact fuel pump and injectors you need will depend on the amount of boost you intend to use. If you're looking for a simple upgrade, a Walbro 255lph pump is a common choice for a stock engine with a stock turbo. These pumps are relatively inexpensive and can handle enough fuel flow to feed 450 crank HP.
However, if you're planning on heavy-duty tuning or swapping to a larger turbo, you might want to consider an E85 fuel pump and injectors. E85 fuel pumps are more expensive, but they don't corrode when exposed to E85 fuel, and E85 fuel allows tuners to push the limits of boost beyond what regular gasoline can deliver. For stock engines, 750cc injectors are usually the largest size people use, as they have more than enough flow to keep your engine from running lean.
There are also several aftermarket options for fuel injectors that are specifically designed for the Subaru WRX. These include brands such as Injector Dynamics, DeatschWerks, and COBB. For example, Injector Dynamics offers 1700cc injectors for the 2002-2014 WRX, while DeatschWerks offers 750cc injectors with a top feed conversion fuel rail for the same model years.
Upgrading your fuel injectors can provide increased power and improved throttle response. For instance, the 2200cc fuel injectors for the 2002-2005 Subaru WRX 2.0 Turbo are engineered to maintain precise control of fuel delivery and atomization, resulting in enhanced performance. Ultimately, the specific fuel injectors and pump you choose will depend on your desired level of performance and the modifications you've made to your vehicle.
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Frequently asked questions
A 2002 Subaru WRX has four fuel injectors.
Fuel injectors are responsible for delivering fuel to the engine. They ensure that the fuel is atomised and delivered in a precise, controlled manner, resulting in increased power and improved throttle response.
Yes, there are different types and brands of fuel injectors available for the 2002 Subaru WRX. Some options include:
- DeatschWerks Bosch EV14 Fuel Injectors
- Injector Dynamics Fuel Injectors
- Fuel Injector Clinic Injectors
There are a variety of capacities available, including:
- 540cc
- 650cc
- 750cc
- 1000cc
- 1200cc
- 1440cc
- 1500cc
- 2150cc
- 2200cc
Fuel injectors for the 2002 Subaru WRX can be purchased from various retailers, including Amazon, Rallysport Direct, MAPerformance, and CARiD.
