Tiguan IS38 and Big turbo upgrades

[tigger73]

Hmmm that sounds pretty dodgy. The seller should have known the condition and made it clear that it was suitable for upgraded internals only.

As you said lucky the car was where it was when it went and that no major damage was done. A bit of a set-back but that's one of the risks when using second-hand parts.

On-wards an upwards.

[ethosguy]

Update...

Put the IS38 on Tuesday, noticed a few marks on the compressor wheel and slight comp to housing rub before putting it on that I did not notice when it got delivered, we thought the rub was because there was no oil in the turbo. I was pondering if I should install it, the IS20 was already out so decided to install it and see how it went.

Once installed oil run through it and car idling or reeving could not hear any rubbing so thought all good.

First baseline dyno run at 23psi car made 225kw@4 wheels beautiful power curve, then bang!!! and the car stalled!! Restarted the car and huge rattle from the turbo, removed the turbo and exhaust wheel was hanging loose... Luckily it happened on the dyno and not when I was driving the car otherwise might have dropped a bunch of oil down the exhaust and have to find the exhaust wheel in the cat, also could have put bits of metal through the intercooler and into the engine.

[ATTACH=CONFIG]47397[/ATTACH]

Had to put the stock turbo back on. Now in the process of claiming a refund through paypal for the turbo as clearly there was some damage to it before it was sold......

Hunt now begins for a replacement..Have found a few options so IS38 still on the cards.

No góod - better luck with the replacement.

Keenly watching, and planning for the time to replace our aging Mk1 Tiguan.

[Melbourne_Tiggy]

Update...

Put the IS38 on Tuesday, noticed a few marks on the compressor wheel and slight comp to housing rub before putting it on that I did not notice when it got delivered, we thought the rub was because there was no oil in the turbo. I was pondering if I should install it, the IS20 was already out so decided to install it and see how it went.

Once installed oil run through it and car idling or reeving could not hear any rubbing so thought all good.

First baseline dyno run at 23psi car made 225kw@4 wheels beautiful power curve, then bang!!! and the car stalled!! Restarted the car and huge rattle from the turbo, removed the turbo and exhaust wheel was hanging loose... Luckily it happened on the dyno and not when I was driving the car otherwise might have dropped a bunch of oil down the exhaust and have to find the exhaust wheel in the cat, also could have put bits of metal through the intercooler and into the engine.

[ATTACH=CONFIG]47397[/ATTACH]

Had to put the stock turbo back on. Now in the process of claiming a refund through paypal for the turbo as clearly there was some damage to it before it was sold......

Hunt now begins for a replacement..Have found a few options so IS38 still on the cards.

Hi Inasnt, sorry to hear that mate, that is some pretty rotten news. Hope your refund with PayPal and the seller goes smoothly. Good to hear that the car/engine is still ok and that it didn’t cause significant damage. If I see an Is38 at a good price I’ll let you know.

[INASNT]

Hi Inasnt, sorry to hear that mate, that is some pretty rotten news. Hope your refund with PayPal and the seller goes smoothly. Good to hear that the car/engine is still ok and that it didn’t cause significant damage. If I see an Is38 at a good price I’ll let you know.

Have found a few secondhand options, also looking at new one to avoid possible failure again.

[INASNT]

Got a full refund on my broken turbo, have a IS38 G version from a Mk7.5 going on early December, turbo install will have to wait as will be away for work and on holidays over the next few weeks...

Was considering a TTE475 which was going cheap second hand but I would be too tempted to add a cooler, Water/Meth Injection and other mods to get the full potential of the TTE if I installed it...

[Melbourne_Tiggy]

Got a full refund on my broken turbo, have a IS38 G version from a Mk7.5 going on early December, turbo install will have to wait as will be away for work and on holidays over the next few weeks...

Was considering a TTE475 which was going cheap second hand but I would be too tempted to add a cooler, Water/Meth Injection and other mods to get the full potential of the TTE if I installed it...

That’s good news on both fronts! Sounds like it’s coming just in time for Christmas. Be good to hear your experiences with each of the stages including the latest is38 upgrade.

I’m going in for my 2 year service next week - with around 14 months and 15k km on the IS38. It’s been smooth sailing, after getting over the initial niggles with the O2 sensor CEL.

[Wolfsburger]

So much good info on this thread. 👍
Now that I have a new gearbox I will get the Turbo upgrade prioritised. So far it’s just APR tune, res delete, and turbo elbow, next is the DSG tune and then stage 2/Turbo and tune. Love this car, what’s everyone’s take on rubber? Need new boots and interested in hearing experienced opinions. Thanks

[badgeskins]

Are the Tigs where you guys are EA888 DSG engines. I'm in canada an they only offer the EA888 B engine with 8sp auto

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[Melbourne_Tiggy]

Are the Tigs where you guys are EA888 DSG engines. I'm in canada an they only offer the EA888 B engine with 8sp auto

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Yeap, we are lucky in Australia to get the EA888 gen 3 - 2 litre TSI engine producing 162 kw and 350 nm. This is the engine that is shared with the golf gti. In terms of gear box we get the 7 speed DSG DQ500 MQB that is also used in the AUDI RS3 and TTRS. Launch control is standard and puts a smile on your face every time. A fantastic platform for modification.

[badgeskins]

Yeap, we are lucky in Australia to get the EA888 gen 3 - 2 litre TSI engine producing 162 kw and 350 nm. This is the engine that is shared with the golf gti. In terms of gear box we get the 7 speed DSG DQ500 MQB that is also used in the AUDI RS3 and TTRS. Launch control is standard and puts a smile on your face every time. A fantastic platform for modification.

I just became sad... lol. Also found out APR has no tune as of yet for the Gen3.B either.

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[tigger73]

I just became sad... lol. Also found out APR has no tune as of yet for the Gen3.B either.

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They have cracked the ECU at least and I know there's some custom tuners in Melbourne that have tuned this ECU (in a Polo GTI) however there's no reason that you can't do this in a Tiguan.

Only thing you have to be a little more careful over in the North American market is the torque limits of the 8 speed AISIN transmission that you get there. I think you may be still able to bolt on an IS38 turbo and tune it, however you would just need to do your homework first before launching into it. The 132TSI EA888 3B engine we get here is still mated to the same DQ500 DSG so we can go nuts

Still waiting for someone to put a stage 1 tune on one locally.

[badgeskins]

They have cracked the ECU at least and I know there's some custom tuners in Melbourne that have tuned this ECU (in a Polo GTI) however there's no reason that you can't do this in a Tiguan.

Only thing you have to be a little more careful over in the North American market is the torque limits of the 8 speed AISIN transmission that you get there. I think you may be still able to bolt on an IS38 turbo and tune it, however you would just need to do your homework first before launching into it. The 132TSI EA888 3B engine we get here is still mated to the same DQ500 DSG so we can go nuts [emoji14]

Still waiting for someone to put a stage 1 tune on one locally.

Ya im curious to see what The Gen3.B if capable of... What kinda numbers have been made with them with the tuners in the uk and aus?

The 8sp torque converter is another thing too.

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[Boosted_GP]

Yeap, we are lucky in Australia to get the EA888 gen 3 - 2 litre TSI engine producing 162 kw and 350 nm. This is the engine that is shared with the golf gti. In terms of gear box we get the 7 speed DSG DQ500 MQB that is also used in the AUDI RS3 and TTRS. Launch control is standard and puts a smile on your face every time. A fantastic platform for modification.

Exactly the same as South Africa


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[REXman]

Got my gearbox replaced. Thank F I waited (more like got painfully delayed by the potential tuner) before I proceeded.

Now my gearbox is smooth as hell.. VW did good.

I have the turbo and exhaust in my bedroom just waiting.. not sure how I should wait.. maybe 1000kms?

APR can't tune my car so I'm going with a custom tune from Tune House.. any good bad reviews?

[tigger73]

Got my gearbox replaced. Thank F I waited (more like got painfully delayed by the potential tuner) before I proceeded.

Now my gearbox is smooth as hell.. VW did good.

I have the turbo and exhaust in my bedroom just waiting.. not sure how I should wait.. maybe 1000kms?

APR can't tune my car so I'm going with a custom tune from Tune House.. any good bad reviews?

What happened to your gearbox??? Symptoms?

How many km on your car?

Haven’t heard about TuneHouse doing VW before but I see that they are an APR reseller. Do they custom tune a lot of Euros?

I can’t make any comment about their work specifically but my experience with JDM tuners having a go at custom tuning Euro cars is that it doesn’t go all that well. I’d be taking it to a VW/Audi specialist that can do custom tuning like Etuners/PacorTech in Sydney.


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