Millie Lowe. Honda. October 19th , 2017.
The Odyssey new engine - from the Honda EarthDreams® Technology powertrain series - is rated at 280 peak horsepower and 262 lb.-ft. peak torque. Peak engine output is up 32 horsepower and 12 pound-feet of torque from the previous model, with increased torque over the engine entire operating (rpm) range. The new, more efficient engine and transmissions, along with as much as a 75-pound reduction in vehicle weight (EX-L trim) and improved aerodynamics, among other reductions to running resistance, result in enhanced performance and fuel efficiency. With its 60-degree V-angle, the Odyssey V6 engine is inherently smooth and has compact overall dimensions that allow efficient packaging within the vehicle. The engine has a high-pressure die-cast lightweight aluminum alloy block with cast-in-place iron cylinder liners. Made with a centrifugal spin-casting process, the thin-wall liners are high in strength and low in porosity. The block incorporates a deep-skirt design with four bolts per bearing cap for rigid crankshaft support and minimized noise and vibration. The engine also uses a high-tensile strength steel crankshaft is for minimum weight.
The new Honda Odyssey includes an underbody aero package consisting of a 2-piece undercover behind the front fascia and underneath the engine and transmission, flat underbody surfaces extending between the front and rear wheel areas, air-diverting strakes positioned ahead of all four tires, and an additional undercover behind the left rear tire (the tailpipe occupies the space behind the right rear tire). These undercovers directly improve fuel efficiency, particularly on the highway.
The Honda Odyssey new direct-injection system enables increased torque across the engine full operating range along with higher fuel efficiency. The system features a compact, high-pressure, direct-injection pump that allows both high fuel flow and pulsation suppression, while variable pressure control optimizes injector operation. A multi-hole injector delivers fuel directly into each cylinder (not to the intake port, as in the previous generation Odyssey), allowing for more efficient combustion. The multi-hole injectors can create the ideal stoichiometric fuel/air mixture in the cylinders for good emissions control. Theoretically, a stoichiometric mixture has just enough air to completely burn the available fuel. Based on the operating conditions, the direct-injection system alters its function for best performance. Upon cold engine startup, fuel is injected into the cylinders on the compression stroke. This creates a weak stratified charge effect that improves engine start-up and reduces exhaust emissions before a normal operating temperature is reached.
The new Odyssey makes widespread use of structural adhesives in the unit-body, supplementing structural welds and significantly increasing rigidity without the additional mass of steel components. Structural adhesives are used at the roof edges and around the moonroof opening, in the front floor and cowl area, in the A- and B-pillars, around the front suspension upper mounts, and extensively throughout the rear of the body. Applied before the body panels are welded together, some 147.6 feet of adhesives (32.8 ft. more than in the previous Odyssey generation) account for approximately 3.5 percent of the entire unit-body stiffness.
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