The Honda Legend IV (KB1), produced between 2004 and 2008, represented the fourth generation of Honda’s flagship luxury sedan. Sold primarily in Japan and select Asian markets, the KB1 Legend aimed to compete with established European and domestic luxury brands. This generation marked a significant step forward in technology and refinement for the Legend, particularly with the introduction of the SH-AWD (Super Handling All-Wheel Drive) system and a sophisticated V6 engine. The 3.5 V6 VTEC variant, producing 295 horsepower, occupied the top position in the Legend IV lineup, offering a blend of performance and luxury features. It was positioned as Honda’s answer to vehicles like the Acura RL (its North American counterpart) and the Lexus GS.
Technical Specifications
| Brand | Honda |
| Model | Legend |
| Generation | Legend IV (KB1) |
| Type (Engine) | 3.5 V6 VTEC (295 Hp) SH-AWD |
| Start of production | 2004 |
| End of production | 2008 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Sedan |
| Seats | 5 |
| Doors | 4 |
| Fuel consumption (urban) | 17 l/100 km (13.8 US mpg, 16.6 UK mpg, 5.9 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) | 11.9 l/100 km (19.8 US mpg, 23.7 UK mpg, 8.4 km/l) |
| Fuel Type | Petrol (Gasoline) |
| Acceleration 0 – 100 km/h | 7.3 sec |
| Acceleration 0 – 62 mph | 7.3 sec |
| Acceleration 0 – 60 mph | 6.9 sec |
| Maximum speed | 250 km/h (155.34 mph) |
| Weight-to-power ratio | 6.3 kg/Hp, 158.6 Hp/tonne |
| Weight-to-torque ratio | 5.3 kg/Nm, 188.7 Nm/tonne |
| Power | 295 Hp @ 6200 rpm |
| Power per litre | 85 Hp/l |
| Torque | 351 Nm @ 5000 rpm (258.88 lb.-ft. @ 5000 rpm) |
| Engine layout | Front, Transverse |
| Engine Model/Code | J35A8 |
| Engine displacement | 3471 cm3 (211.81 cu. in.) |
| Number of cylinders | 6 |
| Engine configuration | V-engine |
| Cylinder Bore | 89 mm (3.5 in.) |
| Piston Stroke | 93 mm (3.66 in.) |
| Compression ratio | 11:1 |
| Number of valves per cylinder | 4 |
| Fuel injection system | Direct injection |
| Engine aspiration | Naturally aspirated engine |
| Engine oil capacity | 4.3 l (4.54 US qt | 3.78 UK qt) |
| Coolant capacity | 6 l (6.34 US qt | 5.28 UK qt) |
| Kerb Weight | 1860 kg (4100.6 lbs.) |
| Trunk (boot) space – maximum | 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.) |
| Drive wheel | All wheel drive (4×4) |
| Number of gears and type of gearbox | 5 gears, automatic transmission |
| Front brakes | Ventilated discs |
| Rear brakes | Disc |
| Assisting systems | ABS (Anti-lock braking system) |
| Tires size | 235/50 R17; 245/45 R18 |
| Wheel rims size | 7J x 17; 8J x 18 |
INTRODUCTION
The KB1 Legend, representing the fourth generation of Honda’s luxury sedan, debuted in 2004 as a sophisticated and technologically advanced vehicle. Built on the extended Honda Accord platform (though significantly upgraded), the KB1 aimed to provide a more refined and powerful alternative to its competitors. The 3.5-liter V6 engine, coupled with the SH-AWD system, was the flagship offering, designed to deliver both exhilarating performance and confident handling in various driving conditions. This model was primarily targeted towards the Japanese domestic market (JDM) and select export markets in Asia, with limited availability elsewhere.
Powertrain & Engine Architecture
The heart of the KB1 Legend 3.5 V6 was the J35A8 engine, a 3.5-liter naturally aspirated V6. This engine featured Honda’s VTEC (Variable Valve Timing and Lift Electronic Control) technology, optimizing valve timing for improved performance and fuel efficiency. The J35A8 produced 295 horsepower at 6200 rpm and 351 Nm (258.88 lb-ft) of torque at 5000 rpm. It utilized multi-point direct fuel injection for precise fuel delivery. The engine’s architecture was designed for smoothness and refinement, with a focus on minimizing noise and vibration. The engine was transversely mounted in the front of the vehicle.
The transmission paired with the J35A8 was a five-speed automatic. This transmission was specifically tuned to complement the engine’s power delivery, offering smooth and responsive shifts. While not a cutting-edge number of gears by modern standards, the transmission was known for its reliability and ability to handle the engine’s torque output. The SH-AWD system, a key feature of this variant, actively distributed torque between the front and rear axles, and even between the left and right rear wheels, enhancing cornering stability and traction.
Driving Characteristics
The 3.5 V6 SH-AWD Legend offered a noticeably more engaging driving experience compared to lower-trim models. Acceleration from 0-60 mph was achieved in approximately 6.9 seconds, and the car felt confident at highway speeds. The SH-AWD system significantly reduced understeer during cornering, providing a more neutral and balanced feel. The automatic transmission, while smooth, wasn’t particularly sporty, prioritizing comfort over aggressive shifting. Compared to a manual transmission equipped Legend (not commonly available), the automatic offered less driver involvement but greater ease of use, particularly in urban traffic. The engine delivered a linear power curve, making it predictable and easy to modulate.
Equipment & Trim Levels
The 3.5 V6 SH-AWD Legend was the highest trim level available, and as such, came standard with a comprehensive list of features. These included leather upholstery, power-adjustable and heated front seats, a premium audio system, automatic climate control, and a navigation system. Exterior features included alloy wheels (typically 17 or 18-inch), fog lights, and chrome accents. Optional extras included a sunroof, upgraded audio options, and advanced safety features like adaptive cruise control and lane keeping assist. The interior design emphasized luxury and comfort, with high-quality materials and a refined aesthetic.
Chassis & Braking
The KB1 Legend featured a MacPherson strut front suspension and a multi-link rear suspension. The suspension was tuned for a balance of comfort and handling, providing a smooth ride over most road surfaces. Stabilizer bars were fitted to both the front and rear axles to reduce body roll during cornering. The braking system consisted of ventilated disc brakes at the front and solid disc brakes at the rear. ABS (Anti-lock Braking System) was standard, providing enhanced braking performance and stability. The chassis was designed to be rigid, contributing to the car’s overall handling and refinement.
Market Reception & Comparison
The Honda Legend IV 3.5 V6 SH-AWD was generally well-received by automotive critics. It was praised for its powerful engine, sophisticated SH-AWD system, and luxurious interior. However, some critics noted that the automatic transmission lacked the responsiveness of a manual gearbox. Fuel economy, at around 19.8 US mpg combined, was considered average for a vehicle in this class. Compared to the lower-trim 2.5-liter Legend models, the 3.5 V6 offered significantly more performance but at the cost of slightly reduced fuel efficiency. It competed directly with vehicles like the Lexus GS and Acura RL, offering a similar level of luxury and performance.
Legacy
The Honda Legend IV 3.5 V6 SH-AWD remains a respected vehicle among enthusiasts. The J35A8 engine is known for its reliability and durability, and the SH-AWD system continues to be a benchmark for all-wheel-drive performance. In the used car market, these Legends are sought after for their combination of luxury, performance, and reliability. While maintenance costs can be higher than for more common vehicles, the Legend IV 3.5 V6 offers a unique and rewarding driving experience. The introduction of SH-AWD in this generation paved the way for its continued use in other Honda and Acura models, solidifying its place as a significant technological advancement for the brand.
