Here’s Why The Mitsubishi Eclipse Had That Giant Hood Bump (It Wasn’t For The Turbo)
The Mitsubishi Eclipse is a name that resonates deeply within the automotive community, especially among enthusiasts who appreciate a good blend of performance and style. When you think of the Eclipse, you might picture its iconic shape and sporty vibe. But one feature stands out more than others—its giant hood bump. What was the purpose of that distinctive feature? Was it merely for aesthetics, or was there something more functional at play? Let’s dive into the details of this intriguing design element that has sparked conversation among car lovers for decades.
The Evolution of the Mitsubishi Eclipse
Before we unpack the mystery of the hood bump, let’s take a brief look at the history of the Mitsubishi Eclipse. Launched in 1989 as a compact sports car, the Eclipse quickly gained popularity due to its unique styling, affordability, and impressive performance potential. It was available in various trims and configurations, including all-wheel drive and turbocharged options, which only added to its allure.
The Eclipse went through several generations, each with its distinct characteristics. However, the second generation, produced from 1995 to 1999, is often the most fondly remembered, especially among fans of the sporty compact segment. It was during this era that the Eclipse truly started to establish itself as an icon, appearing in movies like “The Fast and the Furious,” which solidified its status in pop culture.
The Distinctive Hood Bump
Now, let’s address the elephant in the room—or rather, the bump on the hood. The giant hood bump on the Mitsubishi Eclipse, particularly noticeable on the GSX and GST models, has led many enthusiasts to speculate about its purpose. The immediate assumption might be that it was designed to accommodate a turbocharger. After all, many performance cars boast similar features for that very reason. However, the reality is a bit more complex.
What Was the Purpose of the Hood Bump?
To understand the purpose of the hood bump, we need to take a closer look at the engine layout and design philosophy behind the Mitsubishi Eclipse. The bump wasn’t just a stylistic choice; it served a vital function in the overall design of the vehicle.
Also Read: Here's Why The Mitsubishi Eclipse Had That Giant Hood Bump (It Wasn't For The Turbo)
- Engine Clearance: One of the primary reasons for the hood bump was to provide additional clearance for the engine components. The Eclipse was equipped with the 4G63 engine, which was a robust and capable powerplant. The configuration of this engine, particularly in turbocharged variants, required a bit of extra space to accommodate various components, including the intake and exhaust systems.
- Cooling Efficiency: The bump also aided in improving airflow around the engine bay. Enhanced airflow can contribute to better cooling efficiency, which is crucial for maintaining optimal engine performance, especially under load. By allowing for better air circulation, the hood bump played a role in keeping temperatures in check during spirited driving.
- Styling Considerations: While function was a significant factor, let’s not discount the aesthetic appeal. The aggressive look of the hood bump complemented the sporty character of the Eclipse, making it visually striking. Car enthusiasts are often drawn to vehicles that have a unique aesthetic, and the bump certainly contributed to the Eclipse’s overall appeal.
The 4G63 Engine: Power and Performance
Understanding the significance of the hood bump also requires a deeper dive into the engine that powered many Eclipse models—the legendary 4G63. This engine has a storied history and is revered among car enthusiasts for its performance capabilities.
Available in both naturally aspirated and turbocharged variants, the 4G63 was known for its reliability and tuning potential. The turbocharged model, in particular, became a favorite among tuners due to its ability to produce significant horsepower with relatively minor modifications. The engine’s architecture, combined with the Eclipse’s lightweight chassis, made for an exhilarating driving experience, further solidifying the model’s reputation in the automotive world.
Turbocharged vs. Naturally Aspirated
While the turbocharged version of the 4G63 was renowned for its power, the naturally aspirated variant was no slouch either. The differences in power delivery and tuning potential between the two versions led many enthusiasts to customize their vehicles for various driving experiences.
- Turbocharged 4G63: The turbo models, like the GSX and GST, produced significantly more horsepower than their naturally aspirated counterparts. This increased power output often required additional clearance, hence the hood bump.
- Naturally Aspirated 4G63: The non-turbo models still provided an engaging driving experience but lacked the raw power of the turbocharged versions. The hood bump served a lesser function in these models but still added to the overall design aesthetic.
The Impact on Tuning and Aftermarket Modifications
The Mitsubishi Eclipse, particularly with the 4G63 engine, has a massive following in the tuning community. Many enthusiasts have taken to modifying their vehicles, and the hood bump has played an interesting role in these modifications.
For those looking to enhance the performance of their Eclipse, the hood bump provides a unique opportunity to integrate aftermarket parts. The additional clearance allows for larger intakes, upgraded turbos, and improved intercooling systems, all of which can significantly impact performance.
Aftermarket Support and Community
The aftermarket support for the Mitsubishi Eclipse is both vast and passionate. From performance parts to aesthetic upgrades, the options are nearly limitless. Here are some popular modifications that enthusiasts often pursue:
- Cold Air Intakes: Upgrading the intake system can improve airflow and increase horsepower. Many aftermarket intakes are designed to fit snugly under the hood bump, taking advantage of the additional space.
- Intercoolers: For those running high boost levels, upgrading the intercooler is essential. The hood bump allows for the installation of larger intercoolers, providing better cooling for the intake charge.
- Turbo Upgrades: Enthusiasts often look to swap out the factory turbo for larger, more efficient options. The hood bump accommodates various turbo sizes and configurations, making it easier to achieve higher power levels.
With the right modifications, the Eclipse can become a formidable performance machine, showcasing the potential that lies beneath its distinctive hood bump.
The Eclipse’s Legacy
The Mitsubishi Eclipse has left an indelible mark on the automotive landscape. Its combination of style, performance, and tunability has created a loyal fan base that spans generations. The giant hood bump is just one of the many features that contribute to its legendary status.
As we look back on the Eclipse’s history, it’s clear that the design choices made during its development were not just arbitrary; they were thoughtful and purposeful. The hood bump serves as a reminder of the engineering that went into creating a vehicle that could compete in the sports car arena. It’s a testament to the creativity and innovation that defines the automotive world.

The Future of the Mitsubishi Eclipse
Fast forward to today, and the Mitsubishi Eclipse has undergone a transformation. The introduction of the Eclipse Cross, a crossover SUV, has left some enthusiasts longing for the return of the original sports coupe. While the new model has its merits, it’s hard not to reminisce about the days when the Eclipse was a performance-oriented compact car.
As the automotive industry continues to evolve, with electric and hybrid technologies on the rise, it’s uncertain what the future holds for the Eclipse nameplate. However, the legacy of the original models will always remain, and the giant hood bump will forever be a symbol of the performance spirit that defined an era.
Embracing the Community
One of the most beautiful aspects of car culture is the sense of community it fosters. Whether you’re a proud owner of a Mitsubishi Eclipse or simply an admirer of the brand, there’s a shared passion that brings enthusiasts together. Forums, meetups, and car shows provide a platform for individuals to connect, share knowledge, and celebrate their love for automobiles.
At Torque Feed, we believe in the power of community and the stories that cars tell. The Mitsubishi Eclipse’s journey is just one of many that have shaped the automotive landscape. Every hood bump, every performance upgrade, and every enthusiast’s story contributes to the rich tapestry of car culture.
In Closing
The giant hood bump on the Mitsubishi Eclipse is more than just a design feature; it symbolizes the creativity, engineering prowess, and passion that went into creating a true automotive icon. As we continue to celebrate the legacy of the Eclipse, let’s embrace the stories and connections that make the automotive community so special.
Also Read: Here's Why The Mitsubishi Eclipse Had That Giant Hood Bump (It Wasn't For The Turbo)
Whether you’re tearing up the track, cruising down the boulevard, or simply reminiscing about the glory days of the Eclipse, remember that every bump and curve has its purpose. So, the next time you spot an Eclipse on the road, take a moment to appreciate the intricate details that make it a legend. Here’s to the Mitsubishi Eclipse and the stories it continues to inspire!





