KeWLKaT
05-05-2008, 09:54 PM
Since I'm a member of the SAE, I get a free e-mag each month. This month, the Tau engine from Hyundai (the V8 in the genesis) was featured. Here are some cool facts I hadn't read about it before...
The Tau V8 engine powering Hyundai’s Genesis sedan is the first in a family of “premium” engines up to 5.5 L, the company says. The 4.6-L unit with 32 valves actuated by double overhead camshafts has a bore of 92 mm (3.62 in) and a stroke of 87 mm (3.43 in). It generates 375 hp (280 kW) at 6400 rpm and 451 N·m (333 lb·ft) on premium unleaded gasoline. Specific output is 81.5 hp/L, and the compression ratio is 10.4:1. On regular unleaded, the figures are 369 hp (275 kW) and 439 N·m (324 lb·ft). Fuel delivery for the naturally aspirated unit is via multiport injection. A dual continuously variable valve timing system is used. About 100 engineers were involved in the clean-sheet design, which took 48 months to develop at a cost of 260 billion won, according to Hyundai. The development was led by 25-year Hyundai veteran Jeon Chun-Seok. The company had produced V8 engines based on a Mitsubishi design, but the new engine was developed with Hyundai core, proprietary technologies. Engine features include two-step variable induction system, stainless-steel exhaust manifold, and high-performance catalyst. A silent timing chain, serpentine belt system, and bedplate are major factors in good engine NVH performance. The block and head are both aluminum. The engine is mated to a ZF six-speed automatic. Among the major suppliers for the engine are Eaton, INA, Denso, Bosch, Kefico, Seojin Cam, and Metaldyne. Eight global and 145 domestic Korean suppliers were used.
Patrick Ponticel
:cool:
The Tau V8 engine powering Hyundai’s Genesis sedan is the first in a family of “premium” engines up to 5.5 L, the company says. The 4.6-L unit with 32 valves actuated by double overhead camshafts has a bore of 92 mm (3.62 in) and a stroke of 87 mm (3.43 in). It generates 375 hp (280 kW) at 6400 rpm and 451 N·m (333 lb·ft) on premium unleaded gasoline. Specific output is 81.5 hp/L, and the compression ratio is 10.4:1. On regular unleaded, the figures are 369 hp (275 kW) and 439 N·m (324 lb·ft). Fuel delivery for the naturally aspirated unit is via multiport injection. A dual continuously variable valve timing system is used. About 100 engineers were involved in the clean-sheet design, which took 48 months to develop at a cost of 260 billion won, according to Hyundai. The development was led by 25-year Hyundai veteran Jeon Chun-Seok. The company had produced V8 engines based on a Mitsubishi design, but the new engine was developed with Hyundai core, proprietary technologies. Engine features include two-step variable induction system, stainless-steel exhaust manifold, and high-performance catalyst. A silent timing chain, serpentine belt system, and bedplate are major factors in good engine NVH performance. The block and head are both aluminum. The engine is mated to a ZF six-speed automatic. Among the major suppliers for the engine are Eaton, INA, Denso, Bosch, Kefico, Seojin Cam, and Metaldyne. Eight global and 145 domestic Korean suppliers were used.
Patrick Ponticel
:cool: