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Old 10-27-2016, 10:39 AM   #1
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Stock Yaris TS Turbo TRD - Gains in HP and stock engine limit

Hi guys

Thanks for a great forum with vast knowledge within.

I've just bought a stock Yaris TS Turbo TRD from Stockholm.

I'm interested in knowing if there are any straightforward gains in HP and the limitations of the internals of the engine.

I'm no power hungry guy, I'm just looking for around 30-50 HP reliable gains on top of the stock 150 HP. Keyword here is reliable, as it is my daily driver.

I think aftermarket parts are very hard to find, given the rarity of the car. I'm looking for a FMIC as one of the first things on my to-do list.

What kind of bar/psi is it running stock?
Can the engine on stock internals handle a 30-50 HP gain?
Is a simple chip tuning enough?

I'm very thankful for any answers.

Kind regards
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Old 10-27-2016, 11:41 AM   #2
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Man, I so want your power.

1.8l factory turbo generating 150hp vs the 1.5l n/a generating 106hp that we have to play with. Consider yourself fortunate to have such a desirable starting point.

Sorry I cannot help you on what you can do to achieve your end game. I'd hazard a guess that stock internals are enough to handle at least an additional 30hp given that we push our 1.5l to 140hp on stock innards.
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Old 10-27-2016, 11:48 AM   #3
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Originally Posted by WeeYari View Post
Man, I so want your power.

1.8l factory turbo generating 150hp vs the 1.5l n/a generating 106hp that we have to play with. Consider yourself fortunate to have such a desirable starting point.

Sorry I cannot help you on what you can do to achieve your end game. I'd hazard a guess that stock internals are enough to handle at least an additional 30hp given that we push our 1.5l to 140hp on stock innards.
It is the 1.5 litre 1nzfe engine that I have :) It is just tuned by TRD with a bolt on turbo kit.
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Old 10-27-2016, 11:50 AM   #4
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Really? I guess I'd gotten to the point where I assumed the TS was always 1.8l.

Now I'll have to say internals are maxed out.
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Old 10-27-2016, 12:07 PM   #5
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likely intake, exhaust, bigger intercooler and a tune
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Old 10-27-2016, 02:21 PM   #6
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likely intake, exhaust, bigger intercooler and a tune
Thank you.

Can the stock engine handle the additional power?
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Old 10-27-2016, 02:22 PM   #7
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Really? I guess I'd gotten to the point where I assumed the TS was always 1.8l.

Now I'll have to say internals are maxed out.
Really?

Is there no leg room for a little more power?
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Old 10-27-2016, 02:51 PM   #8
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intake, exhaust, bigger intercooler, boost controller and a tune definitely. The turbo starts to run out of steam at about ~175hp though.
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Old 10-27-2016, 02:53 PM   #9
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180-200 is probably the limit to a stock internals 1NZ. That being said, it's all in how well it's tuned. A front mount intercooler and a good tune, with the relocation of the Intake Air Temp sensor to the actual charge pipe will lead to the most reliable addition of power without getting into the engine.
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Old 10-27-2016, 03:13 PM   #10
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If the car is already turbo-ed, I suspect you won't get much more than another 10hp or so, by conventional measures. Also Toyota ECUs are usually locked against chip upgrades. Maybe with a turbo's piggy-back ECU that's different.

150hp in a small, light car, like a Yaris, must really fly!

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Old 02-09-2024, 06:03 AM   #11
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Can the stock engine of your Yaris TS Turbo handle the additional power from intake, exhaust, a bigger intercooler, and a tune, considering the turbo starts to lose steam at around 175hp and the potential limit for stock internals is around 180-200hp?
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Old 02-12-2024, 02:16 PM   #12
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Can the stock engine of your Yaris TS Turbo handle the additional power from intake, exhaust, a bigger intercooler, and a tune, considering the turbo starts to lose steam at around 175hp and the potential limit for stock internals is around 180-200hp?
No the internals of the engine are already at their limit, i've seen plenty of people shoot a rod through the block on standard TS turbo specification.
Intake exhaust sure but no more than that, maybe on standalone with a very safe tune sure.

But my 2 cents don't chase power on stock internals as it will blow up one day.
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