Tau (τ) Engine Centennial / Equus Copyright 2009 All rights reserved. No part of this material may be reproduced, stored in any retrieval system or transmitted in any form or by any means without the written permission of Hyundai Motor Company.

2 Tau (τ) Engine Copyright 2009 All rights reserved. No part of this material may be reproduced, stored in any retrieval system or transmitted in any form or by any means without the written permission of Hyundai Motor Company. Powertrain Variation Engine A/T model Area Power/TorqueDOMGeneral Middle East China Gasoline Lambda 3.8L MPI 290/36.5 B600 (AISIN) Tau 4.6L MPI 363/46 6HP26 (ZF) VI Limousine (Tau 5.0L MPI ) may not be exported.

3 Tau (τ) Engine Copyright 2009 All rights reserved. No part of this material may be reproduced, stored in any retrieval system or transmitted in any form or by any means without the written permission of Hyundai Motor Company. Items Tau (VI)Omega (LZ) V8 4.6V8 4.5 Displacement (cc)4,6274,495 Bore × Stroke (mm)92×8786×96.8 Bore pitch (mm)10695 Firing order CVVTDual- Max. Power (PS) Max. Torque (kgf.m) Specification Development concept Flagship engine of Hyundai motor company Developed high performance engine for luxury sedan.

4 Tau (τ) Engine Copyright 2009 All rights reserved. No part of this material may be reproduced, stored in any retrieval system or transmitted in any form or by any means without the written permission of Hyundai Motor Company. Timing Chain (silent) 4-1 TYPE Exhaust Manifold Serpentine Belt High pressure die casing aluminum cylinder block CVVT Roller Swing Arm VIS Engine Overview

5 Tau (τ) Engine Copyright 2009 All rights reserved. No part of this material may be reproduced, stored in any retrieval system or transmitted in any form or by any means without the written permission of Hyundai Motor Company. Cylinder Block Open deck V8 (Bank 90°) Bed plate type lower case - Bearing bolt cap : plastic deformation Piston - Ecoform piston is applied - Pin offset : 1.0mm - Piston cooling jet is applied Bearing Cap Bolt tightening torque : 3.8~4.2kgf.m + 120° Bearing cap bolt Lower case Coolant passage Spiny liner Half Skirt

6 Tau (τ) Engine Copyright 2009 All rights reserved. No part of this material may be reproduced, stored in any retrieval system or transmitted in any form or by any means without the written permission of Hyundai Motor Company. Cylinder Head / Cooling circuit From radiator To radiator To heater From heater Knock Sensor is installed on cylinder head - Total 4 sensors Head bolt tightening torque : 3.5kgf.m ° + 90 ° Wax type thermo-state : inlet control Coolant is separately supplied to block and head (4:6) - Cross cooling : inlet exhaust intake outlet Water outlet fitting Water outlet pipe Water inlet pipe Thermo-state To heater From heater From radiator To Radiator Water pump Blow by gas outlet hole

7 Tau (τ) Engine Copyright 2009 All rights reserved. No part of this material may be reproduced, stored in any retrieval system or transmitted in any form or by any means without the written permission of Hyundai Motor Company. Cooling circuit Water Pump Cylinder Block Cylinder Head Radiator Thermostat

8 Tau (τ) Engine Copyright 2009 All rights reserved. No part of this material may be reproduced, stored in any retrieval system or transmitted in any form or by any means without the written permission of Hyundai Motor Company. Element O-Ring Oil Filter Oil Pump ECO Type filter is applied - Replace element and O-Ring Oil pump is operated by timing chain. - Twin oil pump is used

9 Tau (τ) Engine Copyright 2009 All rights reserved. No part of this material may be reproduced, stored in any retrieval system or transmitted in any form or by any means without the written permission of Hyundai Motor Company. Oil Filter Crank Shaft Bearing Cam Shaft Bearing (EX) Con-rod Bearing Oil Pimp Timg Chin Adapter HLA Cam Shaft Bearing (IN) HLA Relief Valve Timg Chin CVVT Oil Filter OCVCVVT Cam Shaft Bearing (EX) HLA Can Shaft Bearing (IN) HLA CVVT Oil Filter OCVCVVT Relief Valve Cooling Zet for Piston Chain Tensioner Oil Pan Oil Flow Block Diagram Cylinder Block Cylinder Head Cyl- Head Oil Pressure : 4.2 ~ 4.5 bar

10 Tau (τ) Engine Copyright 2009 All rights reserved. No part of this material may be reproduced, stored in any retrieval system or transmitted in any form or by any means without the written permission of Hyundai Motor Company. Check ball is toward cap bolt Reservoir is toward cap bolt RH LH 3 Timing chains are used (Silent Chain) Ratchet type auto-tensioner (hydraulic) Serpentine belt - A/C compressor installed on block directly. - Mechanical type auto-tensioner Timing Chain / Driving Belt Water Pump A/C Tensioner P/S Idler

11 Tau (τ) Engine Copyright 2009 All rights reserved. No part of this material may be reproduced, stored in any retrieval system or transmitted in any form or by any means without the written permission of Hyundai Motor Company. IN Cam EX Cam OCV EX CVVT EX Cam IN CVVT Valve Train OCV Swing Arm Intake CVVT Exhaust CVVT Beehive valve spring Dual CVVT - Intake CVVT operation angle : 45 ° - Exhaust CVVT operation angle : 45 ° - OCV filter is separated. End Pivot Swing Arm type valve train - Beehive valve spring is used. - Reduced valve train friction

12 Tau (τ) Engine Copyright 2009 All rights reserved. No part of this material may be reproduced, stored in any retrieval system or transmitted in any form or by any means without the written permission of Hyundai Motor Company. Engine rpm Load TDC BDC IN EX Retard Low · Middle Speed and Load Emission, Fuel consumption idle: Intake Max. Retard, Exhaust Max. Advance TDC BDC IN EX Low Speed, High Load TDC BDC IN EX Middle · High Speed, High Load Performance CVVT operations

13 Tau (τ) Engine Copyright 2009 All rights reserved. No part of this material may be reproduced, stored in any retrieval system or transmitted in any form or by any means without the written permission of Hyundai Motor Company. CVVT operations CMP1 signal (Bank1intake) CKP signal CMP1 signal (Bank1intake) Idle Condition - Intake : Max. Retard 6 tooth Stall test Condition - Intake : 36 ° Advanced (6 tooth)

14 Tau (τ) Engine Copyright 2009 All rights reserved. No part of this material may be reproduced, stored in any retrieval system or transmitted in any form or by any means without the written permission of Hyundai Motor Company. VIS (Variable Intake System) - 2-Step (Long/Short runner) type is applied - Depend on engine load and rpm - 1 Solenoid valve / 2 actuators Intake Manifold - Plastic intake manifold (reduce weight) - Located between bank. Exhaust Manifold - CCC is applied. - SUS (Steel Use Stainless) No 1,3,5,7 cylinder No 2,4,6,8 cylinder Short runner (Solenoid OFF)Short runner (Solenoid ON) Short runner (Solenoid OFF)Short runner (Solenoid ON)

15 Tau (τ) Engine Copyright 2009 All rights reserved. No part of this material may be reproduced, stored in any retrieval system or transmitted in any form or by any means without the written permission of Hyundai Motor Company. Jet pump From Sub. filter Pump Return Regulator ENGINE Sub. filter Main filter Fuel Tank Main Sender and Fuel Pump Sub. Sender

16 Tau (τ) Engine Copyright 2009 All rights reserved. No part of this material may be reproduced, stored in any retrieval system or transmitted in any form or by any means without the written permission of Hyundai Motor Company. Location of EMS Components ECT Sensor (Engine Coolant Temperature) Oil Pressure Switch PCSV (Purge Control Solenoid Valve) ETC Connector Oil pressure switch connector OCV

17 Tau (τ) Engine Copyright 2009 All rights reserved. No part of this material may be reproduced, stored in any retrieval system or transmitted in any form or by any means without the written permission of Hyundai Motor Company. Location of EMS Components CMP CKP Knock Sensor Connector Oxygen sensor VIS Solenoid CMP Oxygen sensor Knock Sensor Connector

18 Tau (τ) Engine Copyright 2009 All rights reserved. No part of this material may be reproduced, stored in any retrieval system or transmitted in any form or by any means without the written permission of Hyundai Motor Company. EMS Components - ECM / MAF Sensor ECMMAF Sensor Bosch EMS Water proof type (in engine room) Barometric pressure sensor is installed Auto detection function - Immobilizer : button start - ESP - SCC 32 Bit Delphi MAF Sensor Frequency type is applied Combined with intake air temperature sensor Characteristic is same as lambda MAF - Housing size is changed

19 Tau (τ) Engine Copyright 2009 All rights reserved. No part of this material may be reproduced, stored in any retrieval system or transmitted in any form or by any means without the written permission of Hyundai Motor Company. Long Reach Spark Plug EMS Components - Spark Plug / ETC Added I Mark Spark PlugETC Iridium Platinum Lambda Iridium type Iridium Platinum Tau Iridium type Conventional Spark Plug Bosch ETC Characteristic is same as theta ETC - 2 TPS are installed - DC (2 pin) is used - NO ISC valve Added I mark for assembling air hose

20 Tau (τ) Engine Copyright 2009 All rights reserved. No part of this material may be reproduced, stored in any retrieval system or transmitted in any form or by any means without the written permission of Hyundai Motor Company. Lock device Front Rear EMS Components - Ignition Coil / Fuel Rail Assembly PCSV Fuel Inlet Ignition CoilFuel Rail Firing order : Characteristic is same as theta II ignition coil - Independent ignition (8 ignition coil) Lock device is added to connector - Dual lock device SUS Fuel Rail Fuel rail is connect by flexible hose Caution : Dont give damage to flexible hose during moving by hanger bracket 2 dampers are installed on rail Damper

21 Tau (τ) Engine Copyright 2009 All rights reserved. No part of this material may be reproduced, stored in any retrieval system or transmitted in any form or by any means without the written permission of Hyundai Motor Company. Knock Sensor EMS Components - Knock Sensor / CMP Air gap Knock SensorCMP Sensor 4 Knock Sensor is used Installed on cylinder head. Dont interchange front and rear connector - Front : Gary, Rear : Black Target Wheel Hall IC type Right bank intake CMP is main sensor for synchronized. Air Gap, which is between target wheel and CMP sensor is important. - Air Gap : 1.0 ± 0.5 mm

22 Tau (τ) Engine Copyright 2009 All rights reserved. No part of this material may be reproduced, stored in any retrieval system or transmitted in any form or by any means without the written permission of Hyundai Motor Company. EMS Components - CKP CKP Sensor CMP1 signal (Bank1intake) CMPS2 signal (Bank1 exhaust) CMPS3 signal (Bank2 intake) CKP signal Synchronization Diagram Magnetic type sensor (60-2) tooth target wheel CMP1 signal (Bank1intake) No 1 injector CKP signal No 2 injector

23 Tau (τ) Engine Copyright 2009 All rights reserved. No part of this material may be reproduced, stored in any retrieval system or transmitted in any form or by any means without the written permission of Hyundai Motor Company. Protect Tube Type A/F-ratio 400 Rich mixture (air deficiency) Lean mixture (air surplus) U ref (mV) EMS Components - Oxygen Sensor / PCSV Oxygen SensorPCSV Output Voltage 4 Sensors : Binary – Heated type PCSV Normal Closed type - duty controlled Specification - 83L/min

24 Tau (τ) Engine Copyright 2009 All rights reserved. No part of this material may be reproduced, stored in any retrieval system or transmitted in any form or by any means without the written permission of Hyundai Motor Company. GDS – Current Data

25 Tau (τ) Engine Copyright 2009 All rights reserved. No part of this material may be reproduced, stored in any retrieval system or transmitted in any form or by any means without the written permission of Hyundai Motor Company. GDS – Current Data

26 Tau (τ) Engine Copyright 2009 All rights reserved. No part of this material may be reproduced, stored in any retrieval system or transmitted in any form or by any means without the written permission of Hyundai Motor Company. GDS – Current Data

27 Tau (τ) Engine Copyright 2009 All rights reserved. No part of this material may be reproduced, stored in any retrieval system or transmitted in any form or by any means without the written permission of Hyundai Motor Company. GDS – Current Data

28 Tau (τ) Engine Copyright 2009 All rights reserved. No part of this material may be reproduced, stored in any retrieval system or transmitted in any form or by any means without the written permission of Hyundai Motor Company. GDS – Current Data

29 Tau (τ) Engine Copyright 2009 All rights reserved. No part of this material may be reproduced, stored in any retrieval system or transmitted in any form or by any means without the written permission of Hyundai Motor Company. GDS – Current Data

30 Tau (τ) Engine Copyright 2009 All rights reserved. No part of this material may be reproduced, stored in any retrieval system or transmitted in any form or by any means without the written permission of Hyundai Motor Company. GDS – Current Data

31 Tau (τ) Engine Copyright 2009 All rights reserved. No part of this material may be reproduced, stored in any retrieval system or transmitted in any form or by any means without the written permission of Hyundai Motor Company. GDS – Current Data

32 Tau (τ) Engine Copyright 2009 All rights reserved. No part of this material may be reproduced, stored in any retrieval system or transmitted in any form or by any means without the written permission of Hyundai Motor Company. GDS – Current Data

33 Tau (τ) Engine Copyright 2009 All rights reserved. No part of this material may be reproduced, stored in any retrieval system or transmitted in any form or by any means without the written permission of Hyundai Motor Company. GDS – Current Data

34 Tau (τ) Engine Copyright 2009 All rights reserved. No part of this material may be reproduced, stored in any retrieval system or transmitted in any form or by any means without the written permission of Hyundai Motor Company. GDS – Current Data

35 Tau (τ) Engine Copyright 2009 All rights reserved. No part of this material may be reproduced, stored in any retrieval system or transmitted in any form or by any means without the written permission of Hyundai Motor Company. GDS – Current Data

36 Tau (τ) Engine Copyright 2009 All rights reserved. No part of this material may be reproduced, stored in any retrieval system or transmitted in any form or by any means without the written permission of Hyundai Motor Company. GDS – Current Data