1989 Mitsubishi Debonair 3.0 V royal custom SOHC Specs

OVERVIEW

With a fuel consumption of 19.2 mpg US - 23.1 mpg UK - 12.2 L/100km, a weight of 3284 lbs (1490 kg), the Mitsubishi Debonair 3.0 V royal custom SOHC has a water cooling V-type 6 cylinder SOHC engine, a Regular gasoline engine 6G72. This engine 6G72 produces a maximum power of 157.1 PS (155 bhp - 115.5 kW) at 5000 rpm and a maximum torque of 235.3 Nm (173.5 lb.ft - 24 kg.m) at 4000 rpm. The engine power is transmitted to the road by the front wheel drive (FF) with a 4AT gearbox. For stopping power, the Mitsubishi Debonair 3.0 V royal custom SOHC braking system includes Ventilated disk at the rear and Ventilated disk at the front. Stock tire sizes are 205/65 on 15 inch rims 93H at the rear and 205/65 on 15 inch rims 93H at the front. Chassis details - Mitsubishi Debonair 3.0 V royal custom SOHC has 3 link torsion axle 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 20, 2024

Model Years

The 1989-1991 Mitsubishi Debonair 3.0 V Royal Custom SOHC, produced between October 1989 and April 1991, represents a notable addition to Mitsubishi's lineup during that era. This sedan, featuring front-wheel drive (FF) and a 4-speed automatic transmission (4AT), offered a unique blend of style and performance.

Under the hood, it housed a 2972 cm³ (181.3 cu-in) engine with the code 6G72. This water-cooled V-type 6-cylinder SOHC engine delivered a maximum power output of 157.1 PS (155 bhp) at 5000 rpm and a maximum torque of 235.3 Nm (173.5 lb.ft) at 4000 rpm. Running on regular gasoline, it showcased respectable fuel efficiency figures with 19.2 mpg US (10/15 mode) or 23.1 mpg UK and 38.5 mpg US (60 km/h mode) or 46.3 mpg UK.

In terms of size and dimensions, this sedan boasted an exterior length of 486.5 cm (191.53 inches), a width of 172.5 cm (67.91 inches), and a height of 144 cm (56.69 inches). The interior provided a spacious cabin with an interior length of 196.5 cm (77.36 inches), a width of 146 cm (57.48 inches), and a height of 118 cm (46.45 inches). The wheelbase measured 273.5 cm (107.67 inches), ensuring stability on the road.

The Debonair 3.0 V Royal Custom SOHC accommodated six passengers across its four doors and featured a minimum turning circle of 5.8 meters for ease of maneuverability. Its fuel tank capacity allowed for 19 US gallons, 15.8 UK gallons, or 72 liters of fuel, offering a reasonable driving range.

This Mitsubishi sedan boasted McPherson strut front suspension and a 3-link torsion axle rear suspension, coupled with ventilated disk brakes both in the front and rear. The front and rear tires featured dimensions of 205/65 R15 93H, providing good traction on various road conditions.

In terms of exterior and interior amenities, it came equipped with standard power windows, power steering, a tachometer, centralized door locking, adjustable and telescopic steering, and wood panel accents. While safety features like airbags were not present, it did include 3-point safety belts, ensuring passenger protection.

The 1989-1991 Mitsubishi Debonair 3.0 V Royal Custom SOHC presented itself as a well-rounded sedan that combined style, comfort, and performance for its time. Its specifications and features catered to the needs and expectations of discerning buyers in the late '80s and early '90s.

Trim Levels

During its production from 1989 to 1991, the Mitsubishi Debonair 3.0 V Royal Custom SOHC was offered in various trim levels, each catering to different preferences and needs of potential buyers. These trim levels aimed to provide a range of features and options to suit individual tastes.

The specific trim levels available for the 1989-1991 Mitsubishi Debonair 3.0 V Royal Custom SOHC may have varied depending on the market and regional specifications. However, a typical lineup might have included options such as:

1. Base Model: This trim level likely offered the essential features and performance without many additional frills, making it an affordable choice for buyers looking for a reliable sedan.

2. Royal Custom: The "Royal Custom" trim was likely the top-tier option, emphasizing luxury and comfort. It might have included premium interior materials, advanced technology features, and additional amenities to enhance the overall driving experience.

These trim levels allowed buyers to select the Debonair model that best suited their budget and desired level of luxury and performance. The availability of specific features and options within each trim level may have also varied, providing flexibility for customization.

Ultimately, the choice of trim level would have allowed buyers to tailor their 1989-1991 Mitsubishi Debonair 3.0 V Royal Custom SOHC to their preferences, whether they prioritized affordability, luxury, or a combination of both.

Engine Specifications

The heart of the 1989-1991 Mitsubishi Debonair 3.0 V Royal Custom SOHC is its engine, and it's a key component that contributed to the sedan's performance and capabilities during this era.

Under the hood, this Mitsubishi model was powered by the 6G72 engine. This was a water-cooled V-type 6-cylinder SOHC engine, known for its reliability and smooth operation. While specific performance figures may vary slightly depending on regional specifications and adjustments over the years, this engine typically produced a maximum power output of around 157.1 PS (155 bhp) at 5000 rpm.

Torque, another important aspect of engine performance, was respectable as well, with a maximum torque output of approximately 235.3 Nm (173.5 lb.ft) at 4000 rpm. This torque delivery provided the Debonair with the necessary power for acceleration and highway cruising.

One of the standout features of this engine was its displacement, with a capacity of 2972 cm³ (181.3 cu-in). This displacement contributed to its performance characteristics and overall power delivery. It was designed to run on regular gasoline, which was a common and easily accessible fuel choice during its production years.

The engine's compression ratio, bore, and stroke were also key specifications that influenced its efficiency and performance, but specific values may vary depending on regional adjustments and model years.

In summary, the 1989-1991 Mitsubishi Debonair 3.0 V Royal Custom SOHC was equipped with the 6G72 engine, a reliable and capable powerplant that provided the sedan with the necessary performance for comfortable and enjoyable driving experiences during its production period.

Dimensions and Sizes

The dimensions and sizes of the 1989-1991 Mitsubishi Debonair 3.0 V Royal Custom SOHC played a crucial role in defining its exterior appearance, interior space, and overall road presence. Here's a look at the key dimensions and sizes of this sedan:

Exterior Dimensions:
- Length: The Debonair had an exterior length of approximately 486.5 cm (191.53 inches), giving it a substantial presence on the road.
- Width: Its width measured around 172.5 cm (67.91 inches), contributing to stability and road grip.
- Height: The sedan stood at about 144 cm (56.69 inches), striking a balance between a sleek profile and sufficient headroom.

Interior Dimensions:
- Interior Length: Inside the cabin, it offered an interior length of roughly 196.5 cm (77.36 inches), providing ample legroom for passengers.
- Interior Width: The interior width was approximately 146 cm (57.48 inches), ensuring comfort for occupants.
- Interior Height: The height of the interior was around 118 cm (46.45 inches), offering decent headroom.

Wheelbase: The Debonair's wheelbase, measuring about 273.5 cm (107.67 inches), contributed to a smooth and stable ride while enhancing interior space.

Axle Lengths:
- Front Axle Length: The front axle had a length of roughly 145.5 cm (57.28 inches).
- Rear Axle Length: The rear axle measured around 142 cm (55.9 inches).

Ground Clearance: With a ground clearance of about 17 cm (6.69 inches), the Debonair struck a balance between stability and the ability to navigate uneven road surfaces.

Weight: The weight of the vehicle was approximately 1490 kg (3284 lbs), a factor that influenced its handling and fuel efficiency.

Seating Capacity: This sedan accommodated up to six passengers across its four doors, providing ample seating for both the driver and passengers.

Doors: It featured four doors for easy access to the interior.

Turning Circle: The minimum turning circle, or turning diameter, was approximately 5.8 meters, allowing for relatively agile maneuverability.

These dimensions and sizes collectively defined the exterior appearance and interior space of the 1989-1991 Mitsubishi Debonair 3.0 V Royal Custom SOHC, contributing to its overall appeal and functionality as a sedan during its production years.

Fuel Tank Capacity

The fuel tank capacity of the 1989-1991 Mitsubishi Debonair 3.0 V Royal Custom SOHC was a significant factor that influenced its driving range and convenience. This sedan came equipped with a fuel tank capable of holding approximately 19 US gallons, equivalent to about 15.8 UK gallons or 72 liters of fuel.

This generous fuel tank capacity allowed the Debonair to cover substantial distances on a single tank of fuel, making it well-suited for long journeys and highway cruising. With efficient fuel consumption, this sedan offered a balance between performance and economy, ensuring that drivers didn't need to refuel frequently during their travels.

The ample fuel capacity was in line with the sedan's overall design, emphasizing comfort and convenience for both the driver and passengers. Whether used for daily commuting or extended road trips, the 1989-1991 Mitsubishi Debonair 3.0 V Royal Custom SOHC's fuel tank capacity contributed to a satisfying driving experience, reducing the need for frequent stops at the gas station.

Fuel Consumption

The fuel consumption of the 1989-1991 Mitsubishi Debonair 3.0 V Royal Custom SOHC was a significant aspect of its performance and cost of ownership. This sedan was designed with efficiency in mind, striking a balance between power and fuel economy.

The fuel consumption figures for this model were measured in different driving modes:

1. Urban Driving (10/15 Mode):
In urban conditions, characterized by stop-and-go traffic and lower speeds, the Debonair achieved an average fuel consumption of approximately 19.2 miles per gallon (mpg) in the US, equivalent to about 23.1 mpg in the UK, or 12.2 liters per 100 kilometers. These figures demonstrated its ability to navigate city streets with reasonable fuel efficiency.

2. Highway Driving (60 km/h Mode):
On the highway, where steady cruising at higher speeds is common, the Debonair excelled in fuel efficiency. It achieved an impressive average fuel consumption of approximately 38.5 mpg in the US, equivalent to about 46.3 mpg in the UK, or 6.1 liters per 100 kilometers. This highway efficiency made it an attractive choice for long-distance travel.

These fuel consumption figures showcased the 1989-1991 Mitsubishi Debonair 3.0 V Royal Custom SOHC's versatility, offering a satisfying balance between city and highway efficiency. Drivers could enjoy both urban convenience and economical highway cruising, contributing to a cost-effective and enjoyable ownership experience.

Fuel Efficiency (MPG)

The fuel efficiency of the 1989-1991 Mitsubishi Debonair 3.0 V Royal Custom SOHC was a notable feature that catered to both economic and practical aspects of driving. This sedan demonstrated commendable fuel efficiency, especially when measured in miles per gallon (mpg) for different driving scenarios:

1. Urban Fuel Efficiency (10/15 Mode):
In urban driving conditions, characterized by frequent stops and starts in city traffic, the Debonair exhibited an urban fuel efficiency of approximately 19.2 mpg in the US, equivalent to around 23.1 mpg in the UK, or 12.2 liters per 100 kilometers. This efficiency allowed for economical city commuting without the need for frequent refueling.

2. Highway Fuel Efficiency (60 km/h Mode):
On the highway, where consistent cruising at higher speeds is the norm, the Debonair truly shone. It achieved a remarkable highway fuel efficiency of approximately 38.5 mpg in the US, equivalent to about 46.3 mpg in the UK, or 6.1 liters per 100 kilometers. This impressive figure made it an ideal choice for long-distance travel, delivering significant savings on fuel costs during highway journeys.

The Debonair's ability to provide excellent fuel efficiency in both urban and highway conditions added to its appeal as a practical and cost-effective sedan. Whether navigating city streets or embarking on extended road trips, this model ensured that drivers could enjoy economical and efficient performance, making it a well-rounded choice for various driving needs.

Wheel Options

The 1989-1991 Mitsubishi Debonair 3.0 V Royal Custom SOHC came with a range of wheel options to complement its design and enhance its performance on the road. These wheel options were carefully selected to offer a balance of style, handling, and ride comfort, allowing buyers to personalize their Debonair according to their preferences.

While specific wheel dimensions and designs may vary depending on regional specifications and individual trim levels, the standard wheel options for this sedan typically included:

Front Wheels:
- The front wheels were equipped with tires sized at 205/65 R15 93H. These tires provided a good balance of traction and comfort, making them suitable for various road conditions and driving scenarios.

Rear Wheels:
- Similarly, the rear wheels were also fitted with 205/65 R15 93H tires, ensuring uniformity in tire size and performance.

Alternative Wheel Options:
- Depending on the trim level and specific market requirements, there may have been alternative wheel options available, which could include different tire sizes or unique wheel designs. These options allowed buyers to further customize the appearance and performance characteristics of their Debonair.

The choice of wheels and tires is an essential aspect of a car's overall performance and aesthetics. The standard wheel options for the 1989-1991 Mitsubishi Debonair 3.0 V Royal Custom SOHC were carefully selected to provide a harmonious balance between style and functionality, enhancing the sedan's appeal to a diverse range of drivers.

Interior Features

The interior features of the 1989-1991 Mitsubishi Debonair 3.0 V Royal Custom SOHC were designed to provide a comfortable and convenient driving experience for both the driver and passengers. While specific features may vary depending on the trim level and regional specifications, some of the notable interior features included:

1. Power Windows: The Debonair typically came equipped with power windows, allowing for effortless control of the windows for all occupants.

2. Power Steering: Power steering was a standard feature, enhancing maneuverability and reducing the effort required to steer the vehicle.

3. Tachometer: A tachometer was included in the instrument cluster, providing the driver with important information about engine speed and performance.

4. Centralized Door Lock: Centralized door locking allowed for easy locking and unlocking of all doors from a single control point.

5. Adjustable and Telescopic Steering: The steering wheel was adjustable both in terms of tilt and telescopic movement, allowing the driver to find a comfortable driving position.

6. Wood Panel Accents: Some trim levels featured wood panel accents on the dashboard and interior, adding a touch of elegance to the cabin.

7. Power Adjustable Front Seats: The front seats could often be adjusted for optimal comfort, ensuring a pleasant driving experience for the driver and front passenger.

8. Power Adjustable Back Seats: In some configurations, the rear seats were also power-adjustable, providing rear passengers with control over their seating positions.

9. Turning Seats (Options): Depending on the market and trim level, there might have been options for turning seats, enhancing ease of entry and exit from the vehicle.

These interior features aimed to create a welcoming and user-friendly environment within the Debonair's cabin. Whether used for daily commuting or long journeys, these features added to the overall comfort and convenience, making the 1989-1991 Mitsubishi Debonair 3.0 V Royal Custom SOHC a well-rounded and enjoyable sedan to drive and ride in.

Exterior Styling

The exterior styling of the 1989-1991 Mitsubishi Debonair 3.0 V Royal Custom SOHC was carefully designed to create a distinctive and visually appealing sedan. This model featured a blend of classic and contemporary design elements that contributed to its overall charm and road presence.

Some key aspects of the exterior styling of the Debonair included:

1. Sleek Profile: The Debonair boasted a sleek and streamlined profile, characterized by clean lines and smooth contours. Its aerodynamic design not only enhanced its aesthetics but also contributed to improved fuel efficiency and reduced wind noise.

2. Front Grille: The front grille, often adorned with chrome accents, added a touch of sophistication to the sedan's front fascia. It featured the Mitsubishi logo and a tasteful design that emphasized the brand's identity.

3. Headlights: The Debonair typically featured stylish and well-integrated headlights that provided ample illumination while complementing the overall design. Depending on the trim level, these headlights might have included various technologies for improved visibility.

4. Body Color Options: Mitsubishi offered a range of exterior body color options to allow buyers to personalize their Debonair. These colors showcased the sedan's elegant lines and curves.

5. Chrome Trim: Chrome accents and trim could be found on various exterior elements, such as door handles, window surrounds, and the side mirrors. These accents added a touch of luxury and sophistication to the sedan's appearance.

6. Alloy Wheels (Options): Depending on the trim level and market, alloy wheels might have been available as an option. These wheels not only enhanced the Debonair's visual appeal but also contributed to improved handling and performance.

7. Rear Design: The rear design of the Debonair featured well-integrated taillights and chrome detailing, creating a balanced and harmonious look from all angles.

8. Overall Elegance: The exterior styling of the Debonair aimed to convey an air of elegance and refinement. It was a well-proportioned sedan that blended classic and modern design elements to appeal to a wide range of buyers.

The 1989-1991 Mitsubishi Debonair 3.0 V Royal Custom SOHC was a sedan that successfully combined aesthetics with functionality. Its exterior styling was a testament to Mitsubishi's commitment to delivering a visually appealing and well-crafted vehicle for discerning drivers and enthusiasts.

Safety Features

The safety features incorporated into the 1989-1991 Mitsubishi Debonair 3.0 V Royal Custom SOHC were designed to provide protection and peace of mind for both the driver and passengers. While specific safety equipment may have varied depending on the trim level and regional specifications, the Debonair typically included several safety features:

1. 3-Point Safety Belts: The Debonair was equipped with 3-point safety belts for all seating positions, helping to secure passengers in the event of a collision and reduce the risk of injury.

2. Child Car Restraints: To ensure the safety of young passengers, the sedan often featured provisions for child car restraints, allowing parents to secure child seats properly.

3. Safety Belt Pretensioners: Some models might have been equipped with safety belt pretensioners, which automatically tightened the seatbelts in the event of sudden deceleration or a collision.

4. Safety Belt Limiters: In certain configurations, safety belt limiters could have been included, which controlled the amount of force applied by the seatbelts during a crash to prevent excessive pressure on occupants.

5. Durable Frame: The sedan's construction often featured a durable frame designed to absorb and distribute impact forces in the event of a collision, enhancing passenger safety.

6. Front and Rear Crumple Zones: Crumple zones were designed to deform in a controlled manner during a collision, dissipating energy and reducing the force transferred to the cabin.

7. Safety Glass: The use of safety glass in the windows helped prevent shattering upon impact, reducing the risk of injury from broken glass.

8. Cornering Lamps: Cornering lamps, if included, improved visibility when turning, enhancing safety during nighttime driving.

9. Safety Features (Airbags, TCS, Brake Assist, Parking Radar): Depending on the specific model and trim level, additional safety features like airbags, traction control system (TCS), brake assist, and parking radar might have been available as options or standard equipment.

It's important to note that safety features and specifications could vary between different markets and trim levels. Nevertheless, Mitsubishi prioritized safety in the design of the 1989-1991 Debonair, aiming to provide a secure and protected environment for occupants, whether on daily commutes or longer journeys.

Performance

The performance of the 1989-1991 Mitsubishi Debonair 3.0 V Royal Custom SOHC was defined by a combination of its engine, drivetrain, and suspension system. This sedan aimed to deliver a balance of power, comfort, and handling to meet the needs of diverse drivers.

1. Engine Power: The Debonair was powered by a 6G72 engine, a 3.0-liter V6 SOHC engine that typically produced around 157.1 PS (155 bhp) of power. This engine delivered smooth and reliable performance suitable for daily driving and highway cruising.

2. Torque: With a maximum torque output of approximately 235.3 Nm (173.5 lb.ft), the Debonair provided ample low-end torque for responsive acceleration and passing maneuvers.

3. Drivetrain: This sedan featured a front-wheel-drive (FF) configuration, providing good traction and stability on various road surfaces.

4. Transmission: The Debonair was equipped with a 4-speed automatic transmission (4AT) that offered smooth and convenient shifting, contributing to an effortless driving experience.

5. Suspension: The front suspension typically consisted of a MacPherson strut setup, while the rear suspension featured a 3-link torsion axle. This combination allowed for a comfortable ride and predictable handling.

6. Braking: The Debonair was equipped with ventilated disc brakes both at the front and rear, ensuring effective and consistent braking performance.

7. Fuel Efficiency: The sedan's fuel efficiency was noteworthy, with urban and highway fuel consumption figures demonstrating its ability to provide both power and economy.

8. Turning Radius: With a minimum turning circle of approximately 5.8 meters, the Debonair offered good maneuverability for navigating through tight spaces and city streets.

While the Debonair prioritized comfort and luxury, it still delivered respectable performance figures for its class. It was well-suited for those who sought a balance between a refined driving experience and dependable performance for everyday use. Whether used for daily commuting or longer journeys, the 1989-1991 Mitsubishi Debonair 3.0 V Royal Custom SOHC aimed to provide a satisfying and enjoyable ride.

Technology and Entertainment

The 1989-1991 Mitsubishi Debonair 3.0 V Royal Custom SOHC incorporated technology and entertainment features to enhance the driving experience and passenger comfort. While the specific features may vary depending on the trim level and market, here are some of the technology and entertainment elements commonly found in this sedan:

1. Audio System: The Debonair often featured a factory-installed audio system, which typically included an AM/FM radio and a cassette player. This provided occupants with the option to listen to their favorite music or radio stations while on the road.

2. Air Conditioning: Air conditioning was a standard feature, allowing passengers to maintain a comfortable cabin temperature regardless of weather conditions. Some models may have included automatic climate control for added convenience.

3. Power Windows: Power windows made it easy for occupants to adjust the window position with the push of a button, enhancing overall convenience.

4. Power Steering: Power steering contributed to ease of maneuverability, especially in parking and low-speed situations.

5. Centralized Door Lock: Centralized door locking allowed for quick and effortless locking and unlocking of all doors from a single control point.

6. Adjustable Steering: The steering wheel was often adjustable, allowing the driver to find the most comfortable driving position.

7. Tachometer: A tachometer provided essential information about engine speed, aiding the driver in making smooth gear shifts.

8. Wood Panel Accents: In some versions, wood panel accents on the dashboard and interior added a touch of elegance and sophistication.

9. Technology Options: Depending on the trim level and market, there might have been options for advanced technology features such as navigation systems, upgraded audio systems, and even early forms of car phone integration.

These technology and entertainment features were designed to make the 1989-1991 Mitsubishi Debonair 3.0 V Royal Custom SOHC a well-equipped and enjoyable vehicle for both drivers and passengers. Whether used for daily commuting or longer journeys, the inclusion of these features added to the overall appeal and convenience of the sedan.

Production Numbers

Details about the production numbers of the 1989-1991 Mitsubishi Debonair 3.0 V Royal Custom SOHC can be somewhat challenging to pinpoint precisely, as production figures can vary by region and model year. Additionally, historical production records may not always be readily available. However, here's some general information about the production of this model:

1. Model Years: The Mitsubishi Debonair 3.0 V Royal Custom SOHC was produced for the model years 1989 to 1991. This three-year span marked the period during which this particular variant of the Debonair was manufactured.

2. Production Facilities: Mitsubishi produced the Debonair at various manufacturing facilities. The specific production numbers may differ for each plant or region where the sedan was assembled.

3. Trim Levels: The production numbers may also vary depending on the trim levels and configurations offered. Different trim levels and options could lead to variations in production quantities.

4. Limited Production: It's worth noting that the Debonair 3.0 V Royal Custom SOHC was not a mass-produced vehicle like some other models. It was positioned as a premium luxury sedan, which could mean that production numbers were relatively limited compared to more mainstream models.

Unfortunately, without access to detailed production records for this specific model, it's challenging to provide precise production numbers for each year. The focus of the Debonair was more on offering a high-quality luxury sedan rather than achieving high production volumes. As a result, this model may be somewhat less common compared to some other Mitsubishi models from the same era.

Conclusion

The 1989-1991 Mitsubishi Debonair 3.0 V Royal Custom SOHC was a luxury sedan that left a lasting impression on the automotive landscape. It embodied the qualities that Mitsubishi aimed to deliver to its discerning customers during this era – a blend of style, comfort, performance, and advanced features.

This particular Debonair model boasted a 3.0-liter V6 SOHC engine that provided a balance of power and efficiency, making it suitable for various driving scenarios. Its spacious interior was designed with passenger comfort in mind, featuring power-adjustable seats, wood panel accents, and a range of convenience features.

Safety was also a priority, with the inclusion of features such as 3-point safety belts, child car restraint provisions, and durable frame construction. These elements contributed to a secure and protected driving environment.

Furthermore, the Debonair incorporated technology and entertainment options, enhancing the overall driving experience. From power windows and central door locking to air conditioning and audio systems, it aimed to cater to both driver and passenger needs.

The sedan's exterior design was characterized by clean lines, chrome accents, and an elegant overall appearance. It exuded a sense of sophistication and modernity.

While precise production numbers may remain elusive, the 1989-1991 Mitsubishi Debonair 3.0 V Royal Custom SOHC stands as a testament to Mitsubishi's commitment to delivering a premium luxury sedan that combined performance and comfort. For those seeking a vehicle that offered a well-rounded package of features and style, the Debonair was a noteworthy choice during its production years.

Frequently Asked Questions (FAQ) About the 1989-1991 Mitsubishi Debonair 3.0 V Royal Custom SOHC