Tiguan IS38 and Big turbo upgrades

[Melbourne_Tiggy]

Hi all,

Given the recent IS38 turbo upgrades by a number of the Tiguan mk2 community, I thought to start a thread sharing mods, experiences and issues relating to turbo upgrades. Australia is fast becoming the IS38 Tiguan country of choice.

Welcome!

Fast facts (as at 11/12/19)

5 x IS38 Tigs in VIC (2X APR, UGP 216 kw atw, Etuners 228 kw atw, INASANT Etuners 239kw atw)

1 x IS38 Tig in NSW (Tunehouse, 185kw atw)

2 x IS38 Tigs in QLD (Redline Tuning, APR)

1 x TTE475 Tig SA (E-Tuners Motorsport 240 kw atw mainline dyno)

1 x L450 Tig in QLD (Redline Tuning 255 kw atw)

1 x TTE475 Tig in NSW (E-Tuners 240 kw atw 1.7 bar)

1 x Snail 480 in VIC (E-Tuners Motorsport 265 kw atw - Tiguan all space)

Summary of OEM IHI IS38 model revisions (used on mk7-7.5 Golf R and S3) that are have been installed on Tiguans:

-06K 145 874 G
-06K 145 722 H
-06K 145 722 T
-06K 145 874 F
-06K 145 874 P (new mk7.5 turbo- Actuator similar to IS20)

With tuning, power of around 400 HP can be achieved.

OEM IS38 IHI Turbo Charger specifications:

-6/6 Blade Billet Compressor Wheel & 8 Blade Turbine Wheel
-45.2 mm Inducer / 58.0 mm Exducer - Compressor
-47.4 mm Exducer / 54.7 mm Inducer - Turbine

Summary of IS38 Hybrids that have installed on Tiguans:

-REVO IS38 ETR (500+ HP)
-The Turbo Engineers TTE475 (475 HP)
-Littco L450 (450 HP)
-Snail Turbo (480 HP)

List of known turbos that fit the EA888 GEN 3:

GTI turbo list

Includes price (usd), compressor/turbine, blade info.

Supporting parts:
- Tyres: Michelin Pilot Sport 4S

- Intake: APR, Racingline R600 w/ Turbo hose/elbow, BMC / k&n/ RAMAIR filter replacement/snow grate delete/intake modification

- Flow (APR, VWR, ECS tuning):Turbo inlet, Turbo muffler delete

- Cooling: Wagner Tiguan Intercooler, Forge and Lava turbo blankets, VWR oil cooler

- Ignition: RS3 Eldor Plugs, NGK 7437-9, Denso IKH24, OEM RS7

- Fueling: Autotech HPFP, VIS HPFP (Romania)

- Handling: Dogbone insert (VWR, APR, 034 motorsports, CTS), Pendulum Mount (APR, note make sure the mount is for a DQ500 MQB transmission).

- Lowering springs Eibach and H&R.

- Exhaust (APR,CTS, RD Technik): Downpipe & resonator delete, OEM golf R muffler (fits exhaust hangers, however needs some modification to fit re: remove fake exhausts, need to extend exhaust pipe and tips)

- Brakes (Alcon 6 piston and DBA T3 378mm discs). Check whether stock master brake cylinder is suitable or needs to be upgraded also.