Eleanor Norton. Honda. October 19th , 2017.
To provide extra sound insulation by blocking off hollow pillars, acoustic spray foam is applied in 14 locations in the Odyssey body for the first time in Honda history. The areas include the base of the A-, B-, C- and D-pillars, as well as the base of the windshield frame and at the top of the C- and D-pillars. In addition, acoustic tape is applied at base of the A-, B- and C-pillars, and a foam stopper is applied to the bottom of the B-pillar. Altogether, the use of these body sealing techniques results in a 55-percent reduction in body leaks, which significantly reduces noise entering the cabin in critical sections. All foam and acoustic tape application is done while the unit-body is in its just manufactured "body-in-white" form - before attachment of key components and assemblies.
Like other Honda V6 powerplants, the Honda Odyssey engine 4-valve cylinder heads are a single-overhead-camshaft design, with the cams driven by the crankshaft via an automatically tensioned timing belt. Made of low-pressure die-cast, low-porosity aluminum, each cylinder head incorporates a "tumble port" design that improves combustion efficiency by creating a more homogeneous fuel-air mixture. An integrated exhaust manifold cast into each cylinder head reduces parts count, saves weight, improves flow and optimizes the location of the close-coupled catalyst on each cylinder bank for quick "light off."
New on the 2018 Honda Odyssey are center door rails hidden under the rear side glass that replace the visible rails located on the body sides behind the rear doors on the second- through 4th-generation Odyssey. The result is a clean, seamless appearance for the rear body side and no visible side door rails or components. A safety latch prevents the left-hand sliding door from opening when the fuel lid is open. Like the front doors and tailgate, the side doors feature full 360-degree seals to reduce wind and road noise, water and debris from entering the vehicle.
Wraparound chrome trim adds a luxurious touch on all trims, as do chrome door handles on EX and above trims, and body-color lower side sills on the Touring and Elite trims. Re-engineering the sliding side door mechanisms removes the previous models visible rails along the rear body sides, giving the new Odyssey a cleaner appearance, while the larger 18-inch and available 19-inch wheels and tires further bolster the 2018 Odyssey athletic stance.
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