Hyundai i20N Tuning Guide
Hyundai i20N Tuning Guide
The Hyundai i20N is already a highly regarded performance car in the hot hatch market, offering a strong balance of power and handling in a compact package. For many owners, however, the appeal of a hot hatch doesn’t end with the factory settings. Tuning and modifying the i20N are becoming increasingly popular as enthusiasts look to extract even more power and improve performance. This tuning guide will cover the options available to i20N owners in the UK, including remaps, tuning stages, and hardware requirements.
The Tuning Landscape for the Hyundai i20N
Until recently, tuning options for the Hyundai i20N were somewhat limited. With the engine control unit (ECU) locked, the only real option for performance tuning was adding a tuning box, such as the RaceChip unit. These tuning boxes modify the car's performance without directly altering the ECU, offering a more straightforward way to boost power. However, as of 2024, the ECU for the i20N has been unlocked, opening the door to more sophisticated tuning options, including full remaps and custom tuning.
This change has made it easier for owners to access more refined and higher-performing upgrades, with several companies now offering ECU remaps that unlock significant gains in both power and efficiency.
Stage Tuning Overview
Tuning your i20N can be done in stages, each offering different levels of performance upgrades. The most common approach is to start with Stage 1, then move to Stage 2 as you add more hardware modifications. Stage 3 tuning is an option being explored by some enthusiasts, but as of now, it remains relatively uncharted territory for the i20N. Let’s break down the stages and what each involves. - Please note, we are referring to "stage tuning" as an easier way of explaining each stage of tuning. We highly recommend conversing with your chosen tuner as to what they recommend for your hardware.
Stage 1 Tuning: ECU Remap
Stage 1 is the most basic and accessible form of tuning. At this stage, the only modification typically needed is an ECU remap. A Stage 1 remap involves modifying the car’s existing ECU software to optimise performance, often by increasing boost pressure, adjusting fuel maps, and refining ignition timing. The key benefit of a Stage 1 remap is the increase in power without the need for additional hardware upgrades.
- Expected Gains: A well-executed Stage 1 remap can provide an increase of around 20 to 30 horsepower, depending on the specific remap and the condition of the car.
- Hardware Requirements: No additional hardware is required for Stage 1, making it a cost-effective and relatively straightforward option for those looking to improve performance without significantly altering the car.
- Common Mods: While no extra hardware is needed, some owners opt to fit a high-flow air filter or a performance exhaust at this stage to complement the remap and unlock a bit more performance. JXL Performance recommends the K&N Performance Air Filter and the Scorpion Hyundai i20N GPF-Back Exhaust system
Stage 2 Tuning: Hardware Upgrades and Remap
Stage 2 tuning takes things a step further, combining hardware upgrades with a custom remap to achieve even greater performance. This stage typically involves more significant changes to the car’s intake and exhaust systems. Common modifications include a larger intercooler, a performance intake, and a more free-flowing exhaust system, which help the engine breathe better and operate more efficiently.
- Expected Gains: Stage 2 tuning can typically provide a gain of around 30 to 50 horsepower over stock, depending on the specific hardware upgrades and remap.
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Hardware Requirements: To reach Stage 2, you’ll need to upgrade several key components:
- Upgraded intercooler: A larger intercooler helps lower intake temperatures, which can reduce the likelihood of engine knock and increase power.
- Performance intake: A higher-flowing intake system allows more air to reach the engine, improving combustion efficiency.
- Performance exhaust: A more efficient exhaust system reduces backpressure and improves engine performance, especially at higher RPMs.
Stage 3 Tuning: Early days for the Hyundai i20N
Stage 3 tuning represents the more extreme side of car modification. At this stage, owners are looking to push the engine to its limits, and the changes become much more involved. This stage typically involves larger turbochargers, upgraded fuel systems, and enhanced internal engine components to handle the increased power and boost.
Hardware Requirements: Key upgrades for Stage 3 typically include:
- Larger turbocharger: A bigger turbo allows for more airflow and higher boost levels, which translates to more power.
- Upgraded fuel injectors and fuel pump: To keep up with the increased power demands, these components are necessary to ensure the engine receives enough fuel.
- Stronger engine internals: In some cases, stronger pistons, rods, or valves may be needed to withstand the increased power and pressure.
While Stage 3 tuning offers the potential for significant power gains, it is still relatively early days for tuning the i20N at this level. Few tuners have explored this territory, and it’s important to be cautious when considering these modifications, as they could lead to reliability issues or other complications if not done properly.
Considerations Before Tuning Your Hyundai i20N
Before diving into tuning your i20N, there are a few key factors to keep in mind:
- Warranty: Tuning your car can void the manufacturer’s warranty, especially if you make significant changes to the ECU or other critical components. It’s important to check the terms of your warranty before proceeding with any modifications.
- Insurance: Upgrading your car’s performance can impact your insurance premiums. Be sure to notify your insurer about any modifications to ensure you're covered in the event of an accident.
- Reliability and Maintenance: More power can put additional strain on the car’s components. Ensure that you’re ready for the potential increased maintenance needs that come with performance upgrades. Check out our Hyundai i20N Maintenance Guide here
Conclusion
Tuning the Hyundai i20N is an exciting way to unlock more power and performance from this already impressive hot hatch. With the ECU now unlocked, there are more tuning options available than ever before, from the straightforward Stage 1 remap to more involved Stage 2 upgrades. Stage 3 tuning remains a less-explored area but offers the potential for significant performance increases for those looking to push the limits.
When tuning your i20N, always ensure that you’re working with reputable tuning companies and professionals who understand the nuances of the car. With the right modifications, your i20N can offer even more thrilling performance on the road.