Acura Legend Sedan

From Acura press: With the mandate to create an all-new automobile while remaining faithful to the original Legend tenets and measurably increasing performance, handling, luxury and improving weight distribution, the engineers turned to the specifics.

They decided, for instance, to improve performance and achieve a sportier driving feel while achieving greater luxury - yet were not willing to accept a major weight increase. Reaching these rather contradictory goals meant extensive application of high technology. Further, they resolved to make the new Legend not merely a car that performs well in proving ground and laboratory simulation tests, but one which is thoroughly satisfying to the human beings who drive and ride in it. This would mean on-the-road tests on several continents with exhaustive evaluation of subjective as well as objective test results. Finally, they wanted their new luxury car to exhibit the highest level of craftsmanship and quality - outside, inside and under the skin.

The primary goal was to achieve sportier handling; to make the new Legend even more of a "driver's car." Higher performance under all driving conditions was at the top of the list of priorities; Honda R&D was prepared to create an all-new engine to meet it. Another important goal was to make the new Legend even quieter and smoother.

To attain these results, they made a decision that would affect the entire car profoundly: to position the engine longitudinally or "north-south," instead of the transverse or "east-west" mounting of the original Legend engine. This improves the front/ rear weight distribution, and diminishes the amount of engine vibration transmitted to the body structure. It also means a complete retooling of one of the most costly, least often changed elements of automobiles: the entire drivetrain.
For the second generation Legend drivetrain, the planners and engineers set ambitious goals: to provide substantially higher performance, with greater smoothness and quietness and no sacrifice in fuel efficiency.To accomplish this, they developed an all-new longitudinal drivetrain with a 3.2-liter,24-valve V-6 engine (up from 2.7 liters). Stronger, more refined manual and automatic transmissions, a more durable differential and a new mounting system were designed to match the increased power and torque of the new engine.

Although the first generation Legend's 24-valve V-6engine was already known for performance, smoothness and quietness, the engine development team was thus given a mandate to develop an engine with significantly higher performance and greater refinement, yet no increase in weight or fuel consumption. A new V-6 was determined to be the right size and weight while producing enough power to achieve the intended goals..
A displacement increase from 2675to 3206cc was accomplished by increasing the bore from 87.0 to 90.0mm and the stroke from 75.0 to 84.0mm. To accommodate this, a new cylinder block -like all Acura engines, of aluminum alloy - and new cast-iron cylinder liners were designed. The cylinder angle remains 90.

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