Can a Lightened Flywheel Cause Driveability Issues in a Daily-Driven Honda S2000?

Your Honda S2000 is more than just a car. It’s a sturdy machine, a reliable companion, and a source of joy. However, for those among you who are considering upgrading your vehicle’s stock flywheel to a lightweight one, you might have concerns about potential driveability issues. This article will try to address these concerns, and provide insight on whether a lightened flywheel can cause problems.

Understanding the Function of a Flywheel

Before we dive into the potential hazards a lightened flywheel might bring to your Honda S2000, it’s crucial to understand its function. A flywheel is a mechanical device specifically designed to efficiently store rotational energy. It connects to the engine and the clutch, playing a vital role in your car’s operation.

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A flywheel, in essence, keeps your engine running smoothly between gear changes. It does this by storing energy when the engine is running at a high speed and releasing it when the speed drops. This process ensures that your car doesn’t stall or jerk when you change gears.

But what happens when you replace the stock flywheel with a lightweight one?

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The Appeal of a Lightweight Flywheel

A lightweight flywheel is an attractive modification for many car enthusiasts. This is mainly because it reduces the rotational mass in the engine, allowing the engine to spin up to speed more quickly. This leads to better throttle response and quicker acceleration, which can make your Honda S2000 feel more agile and responsive.

However, this doesn’t mean lightweight flywheels are perfect. While they are good for producing quick bursts of speed, they lack the rotational mass needed to keep the engine running smoothly during gear changes. This could lead to potential driveability issues, especially in a daily-driven car like your Honda S2000.

Potential Driveability Issues

One of the main issues that might arise from using a lightened flywheel is a rougher idle. This occurs because the reduced flywheel mass can make the engine more prone to vibrations. While this might not bother some drivers, others might find it unsettling, especially during long commutes or drives.

Another potential issue is gear chatter. This happens when the transmission’s input shaft oscillates rapidly, causing a chatter or rattling noise. This noise can be amplified by a lightweight flywheel, especially when the clutch is disengaged.

Lastly, the lightweight flywheel doesn’t have the rotational mass required to smoothly manage gear changes. As a result, your car might jerk or stall more frequently, especially in stop-and-go traffic.

The Verdict on Lightweight Flywheels

So, will a lightweight flywheel cause driveability issues in your daily-driven Honda S2000? The short answer is: possibly. It largely depends on your personal tolerance for a rougher idle, potential gear chatter, and frequent jerks or stalls.

However, many members who have made the switch to a lightweight flywheel report being satisfied. They don’t mind these slight inconveniences in exchange for the improved throttle response and quicker acceleration. Others, though, prefer the smoother drive provided by the stock flywheel.

Making an Informed Decision

Deciding to switch from a stock flywheel to a lightweight one is a personal choice. You need to weigh the potential benefits against the possible drawbacks. If you are comfortable with a rougher idle and potential gear chatter, then a lightweight flywheel could be a good addition to your Honda S2000. But if you prefer a smoother drive and less noise, stick with the stock flywheel.

Remember, every car and driver is different, so what works for some may not work for others. It’s recommended to reach out to other Honda S2000 owners who have made the switch, read their posts, click on their threads, and gather as much information as possible before making a final decision.

In the end, the goal is to enhance your driving experience, not detract from it. So take your time, do your research, and make an informed decision that you will not regret.

Performance Enhancement with Lightweight Flywheel

The performance benefits of a lightweight flywheel are undeniable, especially for those who are keen on enhancing their Honda S2000’s agility and responsiveness. It’s a popular modification that receives a lot of likes and posts on various car enthusiast forums, with many members reporting improved throttle response and quicker acceleration.

However, it’s crucial to remember that a lighter flywheel doesn’t increase the engine’s power. Instead, it allows the existing power to be utilized more efficiently. By reducing the rotational mass, the engine is able to spin up to speed more quickly. This benefit is particularly noticeable during hard acceleration and spirited driving, where a lightweight flywheel can certainly add to the thrill of the drive.

On the flip side, some forum members have reported a tendency for the engine to rev down more quickly when the throttle is released. This can take some getting used to, especially during gear changes. In addition, because the lighter flywheel does not store as much energy, it might require more throttle input to get the car moving from a stop.

The Influence of the Clutch and Pressure Plate

The clutch and pressure plate play significant roles in how a lightened flywheel influences the Honda S2000’s drivability. A lighter flywheel coupled with an aggressive clutch and pressure plate can exacerbate some of the negative traits previously mentioned, such as rough idle and gear chatter.

Some forum members have found that using a stock pressure plate with a lightweight flywheel can help mitigate these issues. This seems to provide a happy medium between improved performance and maintaining daily drivability. However, it’s important to remember that everyone’s driving style and tolerance for these potential issues are different.

It’s also worth noting that the type of lightweight flywheel matters. For example, a Fidanza flywheel, which is a popular choice among Honda S2000 owners, is significantly lighter than the stock flywheel. Some people find this to be the perfect balance between performance and comfort, while others might find it too aggressive for their liking.


Whether a lightweight flywheel will cause driveability issues in your Honda S2000 ultimately depends on your personal preferences and driving habits. While some forum members are willing to put up with a rougher idle and potential gear chatter for improved performance, others prefer the smoother, quieter operation of the stock flywheel.

One thing is certain: this modification isn’t for everyone. It’s a nuanced decision that requires careful consideration. So, follow the click expand button, read through the originally posted threads, and tally up the posts likes and received likes to get a sense of what the majority thinks.

Engage with the forum members, ask questions and learn from their experiences. And remember, what works for one driver may not necessarily work for another. So, while the likes received can provide some guidance, it’s crucial to make a decision that aligns with your own expectations and driving style.

In the end, a lightened flywheel can be a fantastic upgrade for your Honda S2000 if you’re willing to live with its potential drawbacks. If not, the stock flywheel remains a reliable and smooth-driving option. Either way, it’s all about choosing what will make your driving experience enjoyable and fulfilling.

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