Even with two completely redesigned models debuting in the coming weeks, Hyundai won't leave its carryover models alone for the 2010 model year. Engineers have tweaked the 4.6-liter V8 in the Genesis sedan and extracted an extra ten horsepower from the Tau to bring peak output up to 385 hp at 6,500 rpm.

Hyundai Technical Center powertrain director John Juriga acknowledged that the performance stats will remain the same, but drivers will be able to feel the increased grunt. The revisions not only increase output, but also improve the refinement and driveability of the V8 to feel more responsive at the low end of the tach.

To achieve its goals, Hyundai added a two-step variable induction system that varies the flow through the intake manifold at low and high rpm, along with continuously variable valve timing on both intake and exhaust, larger valves, and a chromium nitride coating on the pistons to reduce friction. The updated Genesis sedans will be arriving in dealerships later this year.



[Source: Hyundai]


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