90TSI to 103TSI Turbo Upgrade Possible?

[fourbytes]

I've just inherited a 2013 90TSI 1.4 and I've been trying to find out if it's plausible to upgrade it to a 103TSI as it seems to be the same engine block with a different turbo. If I were to get parts from a wrecker from a 103TSI, what would I need other than the turbo and ECU?

I've looked into getting it tuned but if possible I'd rather get a larger turbo first then get it tuned as a 103TSI even better.

Is this possible/relatively easy or am I being stupidly unrealistic?

[tigger73]

You can get some improvements but best is start with a 2.0t. As the saying goes no replacement for displacement.

You'll spend more in upgrading your 1.4 than you would selling and buying a 2.0t.


Sent from my iPhone using Tapatalk

[point]

Can definitely get the parts and tune it - probably wouldn't cost that much if you're smart about it. What gearbox you have? Theres a few people in Europe that have done it from what I've heard.

[fourbytes]

I've got the 7speed DSG, had a quick look and I can get a used 103TSI turbo and ECU for $700, I feel like if it was just those parts, bolt on, that would be too easy however.

[point]

it likely actually is that simple. The 1.8 and 2.0 EA888 engines can all be easily swapped between IS15/20/30 turbos so it could well be that easy for the TSIs. That said, a tune will take the 90tsi engine/turbo to roughy the same if not more power than the 103tsi.

You have the DQ200 DSG which is limited to 250nm. Honestly tuning a car with a DQ200 is asking for trouble.

Overall I wouldn't bother, do some suspension mods and make it handle well and you'll forget its lack of outright power.

[h100vw]

I've got the 7speed DSG, had a quick look and I can get a used 103TSI turbo and ECU for $700, I feel like if it was just those parts, bolt on, that would be too easy however.

Having an ECU wont benefit you, unless you need a paperweight.

DSG isnt as weak as you think but needs tuning to cope.

It would be a waste of time buying a turbo.

[Imolator]

Bolting on the 103TSI Turbo on a 90TSI will not give the same power output.

There is one other difference between 90TSI and 103TSI that I am aware of. The 90TSI only has variable valve timing on the inlet valves, the 103TSI has variable valve timing on both inlet and exhaust.

[nomodlowkmgti]

hi why dont you just get a apr tune done im considering it my self i have a my14 90 tsi golf and from what i read on the apr site it bumps up power and torque over a 103 any ways . torque is increase some thing like 40 % and all they do is plug in and reflash ecu no other models or need to put a spanner on anything

[Bora Sport]

Or you could talk to Gav and probably get at least as good a result for half? the price.

[nomodlowkmgti]

I made some enquiry on getting the apr reflash it looks like the sale ended in aug and the going price now days is around $950 and highest was 1150 im at the central coast nsw so looks like if i want it done its going to be a trip to syd . i was told maybe in dec there will be another sale on . i think they were doing them for around 850 .