Hyundai Tau engine

The Tau is a family of gasoline V8 engines produced by Hyundai Motor Company. It replaced the Omega engine line.

τ-engine
Hyundai Tau engine
Overview
ManufacturerHyundai Motor Company
Layout
ConfigurationV8
Displacement4.6 L (4,627 cc)
5.0 L (5,038 cc)
Cylinder bore92 mm (3.62 in)
96 mm (3.78 in)
Piston stroke87 mm (3.43 in)
Block materialHigh pressure die cast aluminum
Head materialAluminum
ValvetrainDOHC 4 valves x cyl. with D-CVVT
Compression ratio10.4:1, 11.5:1, 11.8:1
Combustion
SuperchargerOn tuned prototype Genesis Sedans
Fuel systemMulti-port fuel injection
Direct injection
Fuel typeGasoline
Cooling systemWater-cooled
Output
Power output361–460 hp (269–343 kW; 366–466 PS)
Torque output44.8–53 kg⋅m (439–520 N⋅m; 324–383 lbf⋅ft)
Chronology
PredecessorOmega

Tau MPiEdit

Hyundai Motor Company has also shown a supercharged version of the 4.6 Tau MPi engine at 2008 SEMA show,[1] and later 2009 Chicago Auto Show. This engine was equipped with a supercharger and cylinder deactivation technology to produce an estimated 460 hp (343 kW) while returning better fuel economy.[2]

Petrol engines
Model Engine code Power@rpm Torque@rpm Compression ratio
4.6 Tau MPi (366PS) G8BA 366 PS (269 kW; 361 hp) @ 6500 44.8 kg⋅m (439 N⋅m; 324 lbf⋅ft) @ 3500 10.4:1
4.6 Tau MPi (390PS) G8BA 383 PS (282 kW; 378 hp) @ 6500 (Regular)
390 PS (287 kW; 385 hp) @ 6500 (Premium)
44.8 kg⋅m (439 N⋅m; 324 lbf⋅ft) @ 3500 (Regular)
46 kg⋅m (451 N⋅m; 333 lbf⋅ft) @ 3500 (Premium)
5.0 Tau MPi G8BB Premium fuel: 400 PS (294 kW; 395 hp) @ 6400 51 kg⋅m (500 N⋅m; 369 lbf⋅ft) @ 3500

SpecificationsEdit

4.6 Tau MPi[3] for the Genesis' 4.6L Tau V8 engine:

ApplicationEdit

4.6 Tau MPiEdit

5.0 Tau GDIEdit

Tau GDiEdit

The Tau GDi uses gasoline direct injection.

Model Engine code Power@rpm Torque@rpm Compression ratio
5.0 Tau GDi G8BE 413 PS (304 kW; 407 hp) @ 6000 (Regular)
425 PS (313 kW; 419 hp) @ 6000 (Premium)
51.4 kg⋅m (504 N⋅m; 372 lbf⋅ft) @ 5000 (Regular)
53 kg⋅m (520 N⋅m; 383 lbf⋅ft) @ 5000 (Premium)
11.8:1

2015 Updates[5]

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
Petrol engines
Model Engine code Power@rpm Torque@rpm Compression ratio
5.0 Tau GDi G8BE 430 PS (316 kW; 424 hp) @ 6400 (Regular)
435 PS (320 kW; 429 hp) @ 6400 (Premium)
52 kg⋅m (510 N⋅m; 376 lbf⋅ft) @ 5000 11.5:1

SpecificationsEdit

5.0 Tau GDi[6] for Equus' 5.0L Tau V8 engine:

ApplicationEdit

AwardsEdit

The 4.6 Tau V8 Engine was named to the Wards 10 Best Engine Awards for 2009 and 2010.[7] 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 alsoEdit

ReferencesEdit

  1. ^ "SEMA 2008: Hyundai debuts tuned Genesis Sedans, 460-hp supercharged V8". Autoblog. 2008-11-04.
  2. ^ "Hyundai Shows Off 460 HP Prototype Supercharged Tau V8". Jalopnik. 2009-02-12.
  3. ^ "2009 Hyundai Genesis Specs". JB car pages. Retrieved 2008-08-22.
  4. ^ a b c Ponticel, Patrick (May 2008). "Hyundai V8 for Genesis is first in the family". Automotive Engineering International. 116 (5). p. 30.
  5. ^ "2015 Hyundai Genesis stiffer, quieter thanks to re-engineered chassis, body structure, powertrain - SAE International". articles.sae.org. Retrieved 2016-04-25.
  6. ^ "Take that Mustang?Hyundai develops 429-hp 5.0-Liter Tau V8,Will Hook It To Eight Speed Auto". Car and Driver. Retrieved 2010-06-24.
  7. ^ "Tau V8 Award". CubicCapacity.com. Archived from the original on 2009-05-01. Retrieved 2010-02-19.