The Tau τ is a family of gasoline

V8 engine A V8 engine is an eight-cylinder piston engine in which two banks of four cylinders share a common crankshaft and are arranged in a V configuration. The first V8 engine was produced by the French Antoinette company in 1904, developed and u ...

s produced by the Hyundai Motor Company. It replaced the

Omega Omega (; capital: Ω, lowercase: ω; Ancient Greek ὦ, later ὦ μέγα, Modern Greek ωμέγα) is the twenty-fourth and final letter in the Greek alphabet. In the Greek numeric system/ isopsephy ( gematria), it has a value of 800. The ...

engine line.

Tau MPi

Specifications

4.6 Tau MPi for the Genesis' 4.6L Tau V8 engine: :*

Displacement Displacement may refer to: Physical sciences Mathematics and Physics * Displacement (geometry), is the difference between the final and initial position of a point trajectory (for instance, the center of mass of a moving object). The actual path ...

(bore x stroke): () :* Block material: High pressure

die cast Die casting is a metal casting process that is characterized by forcing molten metal under high pressure into a mold cavity. The mold cavity is created using two hardened tool steel dies which have been machined into shape and work similarly ...

ing

aluminum Aluminium (aluminum in American and Canadian English) is a chemical element with the symbol Al and atomic number 13. Aluminium has a density lower than those of other common metals, at approximately one third that of steel. It ha ...

block :*

Cylinder head In an internal combustion engine, the cylinder head (often abbreviated to simply "head") sits above the cylinders and forms the roof of the combustion chamber. In sidevalve engines, the head is a simple sheet of metal; whereas in more modern ...

material: Aluminum :* Valvetrain: Dual Over Head Cam (DOHC) :* Valve timing:

Continuous variable valve timing Continuity or continuous may refer to: Mathematics * Continuity (mathematics), the opposing concept to discreteness; common examples include ** Continuous probability distribution or random variable in probability and statistics ** Continuous g ...

:* Variable induction system :* Fuel delivery:

Multi-port fuel injection Fuel injection is the introduction of fuel in an internal combustion engine, most commonly automotive engines, by the means of an injector. This article focuses on fuel injection in reciprocating piston and Wankel rotary engines. All comp ...

:* Recommended fuel: Premium Unleaded, though it can run safely on regular gasoline with reduced performance

Application

4.6 Tau MPi

* 2008–2009 Kia Mohave/Borrego * 2008–2012

Hyundai Genesis The Hyundai Genesis ( ko, 현대 제네시스) is an executive four-door, five passenger, rear or all-wheel-drive full-size luxury sedan manufactured and marketed by Hyundai. The Hyundai Genesis debuted in 2008 until Genesis spun off as a sepa ...

* 2009–2011

Hyundai Equus The Hyundai Equus () is a full-size, front-engine, rear-drive, four-door, five passenger luxury sedan manufactured and marketed by Hyundai from 1999 to 2016. The name ''" equus"'' is the Latin word for "horse". In 2009, Hyundai released the sec ...

Hyundai Motor Company has also shown a supercharged version of the 4.6 Tau MPi engine at 2008 SEMA show, and later 2009

Chicago Auto Show The Chicago Auto Show is held annually in February at Chicago's McCormick Place convention center. It is the largest auto show in North America. History Samuel Miles, formerly a promoter of bicycle shows, produced the first "official" Chic ...

. This engine was equipped with a supercharger and cylinder deactivation technology to produce an estimated while returning better fuel economy.

Tau GDi

First version (2012–2014)

The Tau GDi uses gasoline direct injection.

Specifications

5.0 Tau GDi for Equus' 5.0L Tau V8 engine: :*

Horsepower Horsepower (hp) is a unit of measurement of power, or the rate at which work is done, usually in reference to the output of engines or motors. There are many different standards and types of horsepower. Two common definitions used today are t ...

: :* Torque: :*

(bore x stroke): () :* Compression ratio: 11.5:1 :* Block material: High pressure

ing

block :*

material: Aluminum :* Valvetrain: Dual Over Head Cam (DOHC) :*

Valve timing In a piston engine, the valve timing is the precise timing of the opening and closing of the valves. In an internal combustion engine those are usually poppet valves and in a steam engine they are usually slide valves or piston valves. Internal ...

: Dual-Continuous variable valve timing(D-CVVT) :* Variable induction system :* Fuel delivery: Gasoline direct injection /

Electronic fuel injection Manifold injection is a mixture formation system for internal combustion engines with external mixture formation. It is commonly used in engines with spark ignition that use petrol as fuel, such as the Otto engine, and the Wankel engine. In a mani ...

:* Recommended fuel: Premium Unleaded, though it can run safely on regular gasoline with reduced performance

Current version (2015–2021)

Updates to the 2015 Genesis 5.0 Tau V8 included: * Bump in compression ratio from 11.5:1 to 11.8:1 * Optimized intake runner length * Enhanced timing chain for reduced friction and NVH * Low-torque exhaust manifold * Upgraded multiple-injection mapping * Dual Continuously Variable Valve Timing (D-CVVT), a tuned variable induction system, and low-friction coatings on piston skirts * Improved Low-end response along with better efficiency and NVH

Application

* 2016–2020 Genesis G80 (DH) * 2015–2021 Genesis G90 (HI) * 2011–2015 Hyundai Equus (VI) * 2011–2016

* 2012–2021

Kia K9 The Kia K9, marketed as the Kia K900 in the United States and Canada and as the Kia Quoris in other export markets, is a full-size luxury sedan manufactured and marketed by Kia, now in its second generation. The K9 was launched in South Korea i ...

Awards

The 4.6 ''Tau'' V8 Engine was named to the Wards 10 Best Engine Awards for 2009 and 2010. The Tau V8 received the award due to the engine's "velvety power delivery, competitive performance, and attainable price-- all of which epitomize the Korean auto maker's drive for world-class engineering", as quoted by

Forbes ''Forbes'' () is an American business magazine owned by Integrated Whale Media Investments and the Forbes family. Published eight times a year, it features articles on finance, industry, investing, and marketing topics. ''Forbes'' also r ...

. This was Hyundai Motor Co. Ltd. first appearance on

Ward's 10 Best Engines 10 of the World's best engines is an annual list of the ten ''"''best''"'' automobile engines available in the U.S. market, that are selected by '' Ward's AutoWorld'' magazine. The list was started in 1994 for Model Year 1995, and has been drawn ev ...

list. The 5.0 ''Tau'' Engine was also named in the same awards for 2011.

References

{{Reflist

Tau Tau (uppercase Τ, lowercase τ, or \boldsymbol\tau; el, ταυ ) is the 19th letter of the Greek alphabet, representing the voiceless dental or alveolar plosive . In the system of Greek numerals, it has a value of 300. The name in English ...

V8 engines Gasoline engines by model

Tau MPi

Specifications

Application

4.6 Tau MPi

Tau GDi

First version (2012–2014)

Specifications

Current version (2015–2021)

Application

Awards

See also

References