The Tau τ is a family of gasoline V8 engines produced by the Hyundai Motor Company. It replaced the Omega engine line.
Tau MPi +Petrol enginesModelEngine codePower at rpmTorque at rpmCompression ratio4.6 Tau MPi (366PS)G8BA at 6500 at 350010.4:14.6 Tau MPi (390PS)G8BA at 6500 (Regular) at 6500 (Premium) at 3500 (Regular) at 3500 (Premium)5.0 Tau MPiG8BB Premium fuel: at 6400 at 3500
Specifications 4.6 Tau MPi for the Genesis' 4.6L Tau V8 engine: Displacement (bore x stroke): () Block material: High pressure die casting aluminum block Cylinder head material: Aluminum Valvetrain: Dual Over Head Cam (DOHC) Valve timing: Continuous variable valve timing Variable induction system Fuel delivery: Multi-port fuel injection 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 2009–2011 Hyundai Equus
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. 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. +Petrol enginesModelEngine codePower at rpmTorque at rpmCompression ratio5.0 Tau GDiG8BE at 6400 (Regular) at 6400 (Premium) at 500011.5:1
Specifications 5.0 Tau GDi for Equus' 5.0L Tau V8 engine: Horsepower: Torque: Displacement (bore x stroke): () Compression ratio: 11.5:1 Block material: High pressure die casting aluminum block Cylinder head material: Aluminum Valvetrain: Dual Over Head Cam (DOHC) Valve timing: Dual-Continuous variable valve timing(D-CVVT) Variable induction system Fuel delivery: Gasoline direct injection / Electronic fuel injection Recommended fuel: Premium Unleaded, though it can run safely on regular gasoline with reduced performance
Second 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
ModelEngine codePower at rpmTorque at rpmCompression ratio5.0 Tau GDiG8BE at 6000 (Regular) at 6000 (Premium) at 5000 (Regular) at 5000 (Premium)11.8:1
Application 2016–2020 Genesis G80 (DH) 2015–2021 Genesis G90 (HI) 2011–2015 Hyundai Equus (VI) 2011–2016 Hyundai Genesis 2012–2021 Kia K9
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. This was Hyundai Motor Co. Ltd. first appearance on Ward's 10 Best Engines list. The 5.0 Tau Engine was also named in the same awards for 2011.
See also List of Hyundai engines
References