2008-2014 Honda Legend IV (KB1 facelift ) 3.7 VTEC V6 (295 Hp) SH-AWD

The Honda Legend IV (KB1), particularly the facelifted model produced from 2008 to 2014, represented Honda’s flagship sedan offering. This generation, sold primarily in Japan and select export markets, aimed to blend luxury, performance, and advanced technology. The 3.7 VTEC V6 SH-AWD variant, producing 295 horsepower, was positioned as the top-tier trim level, offering a significant step up in performance and features compared to lower-spec models. It served as Honda’s answer to established luxury sedans from brands like Lexus, Acura (Honda’s luxury division in North America), and BMW.

Technical Specifications

Brand Honda
Model Legend
Generation Legend IV (KB1, facelift 2008)
Type (Engine) 3.7 VTEC V6 (295 Hp) SH-AWD
Start of production 2008
End of production 2014
Powertrain Architecture Internal Combustion engine
Body type Sedan
Seats 5
Doors 4
Fuel consumption (urban) 16.3 l/100 km (14.4 US mpg, 17.3 UK mpg, 6.1 km/l)
Fuel consumption (extra urban) 8.9 l/100 km (26.4 US mpg, 31.7 UK mpg, 11.2 km/l)
Fuel consumption (combined) 11.6 l/100 km (20.3 US mpg, 24.4 UK mpg, 8.6 km/l)
Fuel Type Petrol (Gasoline)
Acceleration 0 – 100 km/h 7.1 sec
Acceleration 0 – 62 mph 7.1 sec
Acceleration 0 – 60 mph 6.7 sec
Maximum speed 250 km/h (155.34 mph)
Emission standard Euro 4
Weight-to-power ratio 6.3 kg/Hp, 158.6 Hp/tonne
Weight-to-torque ratio 5 kg/Nm, 199.5 Nm/tonne
Power 295 Hp @ 6200 rpm
Power per litre 80.5 Hp/l
Torque 371 Nm @ 5000 rpm (273.64 lb.-ft. @ 5000 rpm)
Engine layout Front, Transverse
Engine Model/Code J37A3
Engine displacement 3664 cm3 (223.59 cu. in.)
Number of cylinders 6
Engine configuration V-engine
Cylinder Bore 90 mm (3.54 in.)
Piston Stroke 96 mm (3.78 in.)
Compression ratio 11.2:1
Number of valves per cylinder 4
Fuel injection system Direct injection
Engine aspiration Naturally aspirated engine
Valvetrain SOHC
Engine oil capacity 4.3 l (4.54 US qt | 3.78 UK qt)
Coolant 6 l (6.34 US qt | 5.28 UK qt)
Kerb Weight 1860 kg (4100.6 lbs.)
Trunk (boot) space (minimum) 452 l (15.96 cu. ft.)
Fuel tank capacity 73 l (19.28 US gal | 16.06 UK gal)
Length 4957 mm (195.16 in.)
Width 1845 mm (72.64 in.)
Height 1450 mm (57.09 in.)
Wheelbase 2800 mm (110.24 in.)
Front track 1575 mm (62.01 in.)
Rear (Back) track 1585 mm (62.4 in.)
Minimum turning circle 11.92 m (39.11 ft.)
Drive wheel All wheel drive (4×4)
Number of gears 5
Gearbox type automatic transmission
Front suspension Double wishbone
Rear suspension Independent multi-link suspension
Front brakes Ventilated discs
Rear brakes Disc
Assisting systems ABS (Anti-lock braking system)
Steering type Steering rack and pinion
Power steering Hydraulic Steering
Tires size 235/50 R17; 245/45 R18
Wheel rims size 7J x 17; 8J x 18

INTRODUCTION

The Honda Legend IV, introduced in 2008 with a facelift, continued the tradition of Honda’s premium sedan. Built on the KB1 platform, this generation focused on refinement and technological innovation. The 3.7-liter V6 SH-AWD model represented the pinnacle of the Legend IV range, offering a potent combination of power, all-wheel drive capability, and luxurious appointments. It was primarily marketed in Japan, with limited exports to other regions, and aimed to compete with established European and American luxury brands.

Powertrain & Engine Architecture

At the heart of the Legend IV 3.7 SH-AWD lies the J37A3 engine, a 3.7-liter, 60-degree V6. This engine utilizes Honda’s VTEC (Variable Valve Timing and Lift Electronic Control) technology, specifically a 24-valve SOHC configuration. Direct fuel injection is employed to enhance efficiency and power output. The J37A3 produces 295 horsepower at 6200 rpm and 371 Nm (273.64 lb-ft) of torque at 5000 rpm. The engine’s architecture prioritizes smoothness and responsiveness.

The engine is paired with a 5-speed automatic transmission. While not the most modern transmission by today’s standards, it was well-tuned for smooth shifts and adequate performance. The SH-AWD (Super Handling All-Wheel Drive) system is a key feature, utilizing a clutch-type rear differential to actively distribute torque between the rear wheels, enhancing cornering stability and traction. This system is a significant advancement over traditional all-wheel drive systems, providing a more dynamic driving experience.

Driving Characteristics

The 3.7 V6 SH-AWD Legend IV delivers a refined and capable driving experience. Acceleration to 60 mph takes approximately 6.7 seconds, and the car feels confident at highway speeds. The SH-AWD system provides excellent grip in various conditions, inspiring confidence in both dry and wet weather. Compared to lower-powered Legend IV variants (like the 2.4L engine), the 3.7L offers a substantial increase in performance, making overtaking and merging onto highways effortless. While the 5-speed automatic isn’t as quick-shifting as some modern transmissions, it provides smooth and predictable gear changes. The suspension is tuned for comfort, absorbing bumps and imperfections in the road effectively, but it doesn’t entirely sacrifice handling precision.

Equipment & Trim Levels

The 3.7 VTEC SH-AWD Legend IV typically came standard with a comprehensive list of features. These included leather upholstery, power-adjustable front seats (often with heating and ventilation), a premium audio system, navigation system, automatic climate control, and a sunroof. Exterior features often included alloy wheels, fog lights, and chrome accents. Optional extras could include advanced safety features like adaptive cruise control, lane keeping assist, and a rear-view camera. The interior design emphasized luxury and spaciousness, with high-quality materials and a well-laid-out dashboard.

Chassis & Braking

The Legend IV utilizes a double wishbone suspension setup at the front and an independent multi-link suspension at the rear, providing a comfortable and controlled ride. The chassis is designed for rigidity, contributing to handling stability. Braking duties are handled by ventilated discs at the front and solid discs at the rear. Anti-lock braking system (ABS) is standard. The steering is a rack-and-pinion system with hydraulic power assistance, offering a balanced feel between lightness and feedback.

Market Reception & Comparison

The Honda Legend IV 3.7 VTEC SH-AWD was generally well-received by automotive critics. It was praised for its smooth engine, comfortable ride, and advanced SH-AWD system. However, some critics noted that the 5-speed automatic transmission felt dated compared to competitors offering 6 or 8-speed gearboxes. Fuel economy, at around 20.3 US mpg combined, was considered average for its class. Compared to the 2.4L Legend IV, the 3.7L offered significantly more performance but at the cost of slightly lower fuel efficiency. Compared to rivals like the Lexus GS and Acura RL, the Legend IV offered a compelling value proposition, often undercutting them in price while providing a similar level of luxury and technology.

Legacy

The Honda Legend IV 3.7 VTEC SH-AWD has proven to be a relatively reliable vehicle, with the J37A3 engine generally considered durable. Common maintenance items include regular oil changes, timing belt replacement (depending on mileage), and inspection of the SH-AWD system. On the used car market, these Legends are often sought after by enthusiasts who appreciate their blend of luxury, performance, and technology. While not as common as some other luxury sedans, the Legend IV 3.7 SH-AWD remains a respected and capable vehicle, offering a unique driving experience.

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