1990 Mitsubishi Sigma 2.5 25E Specs

OVERVIEW

With a fuel consumption of 23 mpg US - 27.6 mpg UK - 10.2 L/100km, a weight of 3174 lbs (1440 kg), the Mitsubishi Sigma 2.5 25E has a water cooling V-type 6 cylinder DOHC engine, a High octane premium gasoline engine 6G73. This engine 6G73 produces a maximum power of 177.4 PS (175 bhp - 130.4 kW) at 6000 rpm and a maximum torque of 221.6 Nm (163.4 lb.ft - 22.6 kg.m) at 4500 rpm. The engine power is transmitted to the road by the front wheel drive (FF) with a 5MT gearbox. For stopping power, the Mitsubishi Sigma 2.5 25E braking system includes Disk at the rear and Ventilated disk at the front. Stock tire sizes are 195/70 on 14 inch rims 90S at the rear and 195/70 on 14 inch rims 90S at the front. Chassis details - Mitsubishi Sigma 2.5 25E has multi link rear suspension and McPherson strut front suspension for road holding and ride confort.

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By Brian Wong, Reviewed by: Kurt Niebuhr, Updated on April 18, 2024

Introduction

The "1990-1991 Mitsubishi Sigma 2.5 25E" marks an era of precision engineering and stylish design in the automotive landscape. Within this span, from November 1990 to September 1991, the Sigma 2.5 25E was a notable addition to the Mitsubishi lineup. As a front-wheel-drive (FF) sedan, it exemplified a balanced fusion of performance and elegance.

Equipped with a 5-speed manual transmission gearbox, the Sigma 2.5 25E boasted a 2497 cm3 engine that delivered an impressive output of 177.4 PS or 175 bhp. This water-cooled V-type 6-cylinder DOHC engine bore the code 6G73 and showcased Mitsubishi's commitment to advanced engineering.

Beyond its engine prowess, the Sigma 2.5 25E stood out with its well-defined dimensions. Its exterior length of 474 cm harmoniously integrated with an exterior width of 177.5 cm, while the interior space provided comfort with an interior length of 187 cm and an interior width of 145 cm. The spaciousness extended to the wheelbase, measuring 272 cm, ensuring a stable and comfortable ride.

Safety features were integrated thoughtfully, including side impact bars and a comprehensive safety belt system. Aspects like power windows, power steering, and a tachometer were incorporated as standard, enhancing the driving experience. The 1990-1991 Mitsubishi Sigma 2.5 25E catered to various preferences, whether for those who preferred manual control or sought the convenience of a tilt steering option.

The allure of the Sigma 2.5 25E extended to its exterior as well. While lacking a sunroof, it offered options like a tilt sunroof for those seeking a touch of open-air freedom. Front fog lamps came as a standard feature, ensuring visibility in various conditions. The sedan's sleek lines and well-defined contours contributed to its overall appeal.

In terms of fuel efficiency, the Sigma 2.5 25E was designed to strike a balance between power and economy. With a fuel consumption rate of 23 mpg (10.2 L/100km) in the 10/15 mode and an impressive 42.7 mpg (5.5 L/100km) in the 60 km/h mode, it showcased Mitsubishi's commitment to providing economical options without sacrificing performance.

The "1990-1991 Mitsubishi Sigma 2.5 25E" stands as a testament to Mitsubishi's dedication to crafting vehicles that marry engineering precision with user-centric features. As part of the Sigma legacy, it left an indelible mark on the automotive landscape of its time.

Model Years and Overview

During the years 1990 to 1991, Mitsubishi introduced the Sigma 2.5 25E, an emblematic representation of their dedication to engineering excellence. This model, falling under the Sigma lineup, encapsulated the essence of that era's automotive innovation.

The Sigma 2.5 25E, produced from November 1990 to September 1991, positioned itself as a distinguished sedan with a front-wheel-drive configuration. With a commitment to quality and performance, Mitsubishi aimed to cater to drivers seeking a blend of power, efficiency, and aesthetic appeal.

Within these two years, the Sigma 2.5 25E emerged as a standout option for those who valued a well-balanced driving experience. Its incorporation of a 5-speed manual transmission gearbox showcased Mitsubishi's attention to providing manual control while harnessing the potential of its 2497 cm3 engine.

The model didn't merely prioritize performance – it also demonstrated thoughtful engineering in terms of its dimensions. From exterior length to interior width, each measurement was a deliberate design choice, contributing to the car's overall functionality and comfort. This period marked an era where Mitsubishi was committed to harmonizing form and function, and the Sigma 2.5 25E was no exception.

Safety and convenience features aligned with the model's holistic approach to driving. As drivers explored the roads in this vehicle, they were met with standard features such as power windows, power steering, and a tachometer, enhancing the driving experience in various ways.

The years 1990 to 1991 witnessed the emergence of the Sigma 2.5 25E as a distinctive member of the Mitsubishi family. With its unique blend of specifications, dimensions, and features, it added depth to Mitsubishi's reputation for innovation. As the automotive landscape continued to evolve, the Sigma 2.5 25E left a lasting impression, emblematic of the era's pursuit of excellence in automotive engineering.

Generations and Variants

The 1990-1991 Mitsubishi Sigma 2.5 25E holds its place within the lineage of Mitsubishi's Sigma series, signifying a distinct phase in the model's evolutionary journey. These years saw the emergence of a specific variant that left its mark through its unique set of specifications and features.

While the 1990-1991 period encompassed a limited span, the Sigma 2.5 25E exemplified Mitsubishi's endeavor to offer a well-balanced sedan that catered to a diverse range of drivers. Within this generation, the emphasis was on optimizing driving dynamics, fuel efficiency, and overall performance.

The Sigma 2.5 25E stood as a testament to Mitsubishi's commitment to continuous improvement, as it showcased a refined integration of features that appealed to the era's drivers. From its engine capabilities to its transmission options, each variant within this generation was tailored to meet specific driving preferences.

The concept of generations within the Mitsubishi Sigma line wasn't limited solely to design or aesthetic changes; it extended to the incorporation of advanced engineering and technology. The 1990-1991 variant was a noteworthy iteration that represented an evolution in terms of engine efficiency and overall driving experience.

As Mitsubishi continued to refine its offerings, the 1990-1991 Mitsubishi Sigma 2.5 25E remained a unique intersection of innovation and practicality. The variants within this generation served as a reflection of Mitsubishi's dedication to adapting to changing automotive trends while preserving the brand's distinct identity.

In summary, the 1990-1991 Mitsubishi Sigma 2.5 25E occupied a pivotal position within the Sigma series' evolutionary timeline. This generation showcased Mitsubishi's ability to introduce enhancements that resonated with drivers of that era. Through meticulous engineering and a focus on driver-centric features, the Sigma 2.5 25E of these years established itself as a distinct variant with a lasting impact.

Engine Specifications

The heart of the 1990-1991 Mitsubishi Sigma 2.5 25E lies in its meticulously engineered powertrain. The engine specifications of this model are a testament to Mitsubishi's dedication to performance and innovation during this period.

At the core of the Sigma 2.5 25E is a robust 2497 cm3 engine, bearing the code 6G73. This water-cooled V-type 6-cylinder DOHC engine was designed to deliver an impressive power output of 177.4 PS or 175 bhp. This power output, achieved at 6000 rpm, speaks to the harmonious balance of power and efficiency that Mitsubishi aimed to achieve with this iteration.

Complementing the engine's power output is its torque performance. The Sigma 2.5 25E generated a maximum torque of 221.6 Nm or 163.4 lb.ft at 4500 rpm, contributing to the car's responsive acceleration and overall driving dynamics.

The engine's architecture incorporated a compression ratio of 10, striking a balance between performance and fuel efficiency. The bore and stroke of 8.4 cm and 7.6 cm, respectively, further exemplified Mitsubishi's precision engineering in optimizing the engine's internal dimensions for optimal combustion and power delivery.

Fuel efficiency remained a key consideration in the design of the engine. The Sigma 2.5 25E was designed to run on high octane premium gasoline, which allowed for both performance and economy. With fuel consumption rates of 23 mpg (10.2 L/100km) in the 10/15 mode and an impressive 42.7 mpg (5.5 L/100km) in the 60 km/h mode, the engine showcased Mitsubishi's commitment to offering a balance between power and efficiency.

The Sigma 2.5 25E's engine specifications aligned with the brand's philosophy of delivering vehicles that excelled in both performance and economy. As a result, the engine of the 1990-1991 Mitsubishi Sigma 2.5 25E served as a core component that contributed to the overall driving experience of this iconic model.

Performance Metrics

The 1990-1991 Mitsubishi Sigma 2.5 25E is characterized by its performance metrics, which underscore its capabilities on the road. This model, with its thoughtfully engineered powertrain, delivers a driving experience that strikes a balance between power, responsiveness, and overall handling.

Acceleration is a notable aspect of the Sigma 2.5 25E's performance. The robust 6G73 engine, capable of producing 177.4 PS or 175 bhp, ensures swift acceleration that caters to various driving scenarios. Whether merging onto highways or navigating urban traffic, the engine's power output translates to confident acceleration.

The engine's torque output further contributes to the model's performance metrics. With a peak torque of 221.6 Nm or 163.4 lb.ft, achieved at 4500 rpm, the Sigma 2.5 25E exhibits a strong mid-range response. This torque availability enhances the car's ability to swiftly respond to throttle inputs, ensuring a dynamic driving experience.

The Sigma 2.5 25E's performance is not solely about power; its handling and agility also play a pivotal role. With a front-wheel-drive configuration, the model exhibits responsive cornering and controlled maneuverability. The suspension setup, comprising McPherson strut front suspension and multi-link rear suspension, contributes to balanced handling characteristics that cater to both comfort and precision.

Incorporating a 5-speed manual transmission gearbox, the Sigma 2.5 25E provides drivers with control over gear shifts, allowing them to make the most of the engine's power band. The gear ratios, including the first gear ratio of 3.09 and the rear gear ratio of 3.166, further contribute to the model's dynamic performance.

In essence, the performance metrics of the 1990-1991 Mitsubishi Sigma 2.5 25E underscore its commitment to delivering a well-rounded driving experience. From acceleration to handling, the model's specifications are engineered to ensure that each moment behind the wheel is characterized by performance, control, and a dynamic connection between driver and machine.

Fuel Efficiency

The 1990-1991 Mitsubishi Sigma 2.5 25E stands as a testament to the era's focus on fuel efficiency without compromising on performance. Mitsubishi's dedication to optimizing fuel consumption is evident in the thoughtful engineering that went into this model's design.

The Sigma 2.5 25E's fuel efficiency is a result of various factors, starting with the high octane premium gasoline it was designed to run on. This fuel choice is a reflection of Mitsubishi's commitment to extracting the best possible performance while maintaining economical operation.

In city driving conditions, the Sigma 2.5 25E demonstrates its efficiency with a fuel consumption rate of 23 mpg (10.2 L/100km) in the 10/15 mode. This metric underscores Mitsubishi's intention to create a vehicle that is suitable for urban commuting, where fuel efficiency is often paramount.

On the highway, the Sigma 2.5 25E excels even further. With a remarkable fuel consumption rate of 42.7 mpg (5.5 L/100km) in the 60 km/h mode, the model showcases its ability to achieve impressive mileage while cruising at higher speeds. This balance between city and highway efficiency speaks to Mitsubishi's comprehensive approach to fuel economy.

This commitment to fuel efficiency is achieved without sacrificing performance. The Sigma 2.5 25E's engine, with its 177.4 PS output, demonstrates that the model's economy doesn't come at the expense of power. This harmonious blend of power and efficiency sets the 1990-1991 Mitsubishi Sigma 2.5 25E apart as a vehicle that caters to a wide range of driving preferences, all while adhering to the demands of the era's fuel-conscious landscape.

Dimensions and Sizes

The 1990-1991 Mitsubishi Sigma 2.5 25E boasts carefully considered dimensions and sizes that contribute to its overall presence on the road. From its exterior to interior dimensions, every aspect has been thoughtfully designed to ensure a harmonious blend of aesthetics, comfort, and practicality.

Starting with its exterior dimensions, the Sigma 2.5 25E presents itself as a well-proportioned sedan. With an exterior length of 474 cm, it strikes a balance between maneuverability and offering ample cabin space. The exterior width of 177.5 cm adds to its road presence, while the exterior height of 143.5 cm maintains a profile that combines elegance with functionality.

Moving to the interior, the Sigma 2.5 25E continues to excel in optimizing space. The interior length of 187 cm ensures sufficient legroom for both driver and passengers. The interior width of 145 cm provides comfortable seating arrangements, contributing to an enjoyable in-cabin experience. The interior height of 116.5 cm complements the overall spaciousness, ensuring that occupants have adequate headroom.

The car's wheelbase, measuring 272 cm, contributes to stability and a smooth ride, particularly during longer journeys. The balance between front and rear axles, with front and rear axle lengths of 153.5 cm and 153 cm respectively, is a testament to Mitsubishi's focus on even weight distribution and optimal handling.

In terms of practicality, the Sigma 2.5 25E offers a minimum turning circle of 5.6 meters, ensuring maneuverability in various driving situations. The ride height, standing at 16.5 cm, provides adequate ground clearance, striking a balance between comfort and navigating uneven road surfaces.

The 1990-1991 Mitsubishi Sigma 2.5 25E's dimensions and sizes showcase a model that's been carefully designed to cater to both driver and passenger needs. Whether it's about the exterior's road presence, the interior's comfort, or the practicality of dimensions that facilitate easy maneuvering, the Sigma 2.5 25E stands as a well-rounded vehicle within its class.

Wheel Specifications

The wheel specifications of the 1990-1991 Mitsubishi Sigma 2.5 25E are a testament to the model's attention to detail and the overall driving experience. From the choice of tire dimensions to the incorporation of standard features, Mitsubishi's dedication to engineering excellence shines through in this aspect.

The Sigma 2.5 25E comes equipped with tires that strike a balance between road grip and comfort. The front and rear tires, both sized at 195/70 R14 90S, are chosen to provide an optimal blend of handling and stability. This tire choice ensures that the model maintains a confident grip on the road, enhancing both cornering performance and overall driving dynamics.

The wheel specifications also include standard features that contribute to the driving experience. The inclusion of power-adjustable door mirrors as a standard feature reflects Mitsubishi's commitment to convenience and driver control. These mirrors allow drivers to easily adjust their view, enhancing visibility and overall safety.

While the Sigma 2.5 25E doesn't feature aluminum disks as standard, it reflects Mitsubishi's commitment to providing a range of options to suit driver preferences. This approach ensures that each driver can customize their experience according to their preferences, whether it's about aesthetics or functional enhancements.

The wheel specifications of the 1990-1991 Mitsubishi Sigma 2.5 25E are a reflection of the brand's dedication to engineering vehicles that cater to a diverse range of needs. Whether it's about tire dimensions that enhance performance or the inclusion of practical features like power-adjustable door mirrors, the Sigma 2.5 25E demonstrates that the details matter when crafting a well-rounded driving experience.

Trim Levels and Features

The 1990-1991 Mitsubishi Sigma 2.5 25E was offered with a set of distinctive trim levels and features that catered to drivers seeking a well-equipped and comfortable driving experience. These trim levels were designed to provide a range of options that aligned with individual preferences and requirements.

As part of the Sigma series, the 2.5 25E trim level showcased Mitsubishi's commitment to offering features that balanced performance, convenience, and aesthetics. While the exact variations might have differed based on regional markets, the focus on providing a well-rounded package remained consistent.

Standard features across the trim levels included power windows and power steering, contributing to driver convenience. The presence of a tachometer further enhanced the driving experience, providing drivers with essential information about engine performance and RPM.

The availability of different steering options demonstrated Mitsubishi's commitment to accommodating diverse driver preferences. While tilt steering was a standard feature, the option for telescopic steering allowed for further customization, ensuring that each driver could find their ideal driving position.

The Sigma 2.5 25E's trim levels extended beyond functional features to include aspects that enhanced comfort and convenience. While leather seats were not a part of this iteration's features, the focus on spacious interior dimensions contributed to a comfortable cabin experience for both driver and passengers.

In terms of safety, the inclusion of side impact bars as a standard feature demonstrated Mitsubishi's emphasis on passenger protection. These features worked in conjunction with the comprehensive safety belt system to ensure that occupants were secure in various driving scenarios.

Overall, the 1990-1991 Mitsubishi Sigma 2.5 25E's trim levels and features reflected a comprehensive approach to designing a vehicle that aligned with the era's driving preferences. Whether it was about driver comfort, safety, or performance-enhancing features, the trim levels within this model ensured that each driver could find a configuration that suited their needs.

Conclusion

In retrospect, the 1990-1991 Mitsubishi Sigma 2.5 25E emerges as a symbol of the era's dedication to automotive innovation and engineering precision. From its meticulously crafted engine to its thoughtfully designed dimensions, this model encapsulated Mitsubishi's commitment to delivering a well-rounded driving experience.

As part of the Sigma series, the 2.5 25E variant stood as a representation of Mitsubishi's ability to cater to a diverse range of driving preferences. The inclusion of a 5-speed manual transmission gearbox and the 6G73 engine code underscored the brand's focus on providing power and control to drivers who sought an engaging driving experience.

The model's performance metrics, including its acceleration and torque delivery, showcased a harmonious blend of power and efficiency. The 1990-1991 Sigma 2.5 25E demonstrated that it was possible to achieve both spirited driving dynamics and economical operation, all within the same vehicle.

With a keen eye on dimensions and sizes, Mitsubishi ensured that the Sigma 2.5 25E provided a spacious interior without compromising on exterior presence. The model's wheel specifications further contributed to its road grip and overall handling, enhancing both performance and safety.

Trim levels and features within this model were designed to cater to various driver preferences, emphasizing convenience, safety, and comfort. These offerings showcased Mitsubishi's commitment to enhancing the overall driving experience by integrating thoughtful features that met the era's demands.

In conclusion, the 1990-1991 Mitsubishi Sigma 2.5 25E remains a remarkable representation of a time when engineering innovation and user-centric features converged. Through its carefully designed engine, performance metrics, dimensions, and features, this model captured the essence of an era characterized by a commitment to excellence in automotive design.