Hyundai engines - same engine, different hp?

[wbwanzer]

I'm curious as to what is different about Hyundai's 2.5 turbo engines. The engine in my '23 Santa Fe 2.5T has 277 hp, but the same 2.5T in the Genesis GV70 has 300 hp. I'm saying it's the same engine because they're both designated as 2.5T, but obviously something is different between the two. Any ideas what would usually account for that that kind of power difference between engines? Slightly larger turbo?

Thanks

 

[goblin]

It could be just the electronic settings. A turbo engine can be made to output different numbers depending on the needs.
In your case, they'd jump through hoops to make the mpg better, as your model competes in a different bracket. So they'd gladly sacrifice a few HP to get better mpg.

I'd also check the torque output. If your SantaFe's torque is higher than on the GV70, it could've been how they decided to set it up.
If your torque is not higher than on the GV70, or if it's lower - your transmission could be the lowest common denominator. Could be they evaluated it will last longer having to handle no more than X torque vs another car with a beefier transmission and the same engine.

 

[Pew]

Same engine, different tuning to take advantage of higher octane to hit that 300hp mark that Luxury cars tend to start at.

 

[goblin]

Same engine, different tuning to take advantage of higher octane to hit that 300hp mark that Luxury cars tend to start at.

Watch the details. The SantaFe was first released with a DCT. It was only recently announced that it's being switched to a standard auto for 2026.
The Kia Sorento that comes with that engine and a DCT transmission is also about 280hp.

The GV70 came with an 8 speed auto from day one.

 

[wbwanzer]

It could be just the electronic settings. A turbo engine can be made to output different numbers depending on the needs.
In your case, they'd jump through hoops to make the mpg better, as your model competes in a different bracket. So they'd gladly sacrifice a few HP to get better mpg.

I'd also check the torque output. If your SantaFe's torque is higher than on the GV70, it could've been how they decided to set it up.
If your torque is not higher than on the GV70, or if it's lower - your transmission could be the lowest common denominator. Could be they evaluated it will last longer having to handle no more than X torque vs another car with a beefier transmission and the same engine.

Thanks. Good points.
The torque is the same at 311 for the GV70 and my Santa Fe. My '23 does have the DCT, which I find works quite well unless creeping along in a traffic backup. Not sure why you put a DCT on an SUV unless maybe a Porsche or Audi or some such sportier SUV.

 

[goblin]

Mpg then. And what @Pew said. They wouldn't want a SantaFe to be more powerful than a GV70 on a shopping list.

 

[Hall]

The engine in my '23 Santa Fe 2.5T has 277 hp, but the same 2.5T in the Genesis GV70 has 300 hp.

Is the Genesis rated at that number using 91-93 octane fuel while the Santa Fe only specs 87 ?

 

[wbwanzer]

That I don't know off the top of my head. I would have to do a little research on the Genesis fuel spec.

 

[wbwanzer]

Quick search says gv70 requires 91 octane or higher.
But I'll doubt that putting 93 in my Santa Fe will give me 300hp.

 

[97prizm]

I'm curious as to what is different about Hyundai's 2.5 turbo engines. The engine in my '23 Santa Fe 2.5T has 277 hp, but the same 2.5T in the Genesis GV70 has 300 hp. I'm saying it's the same engine because they're both designated as 2.5T, but obviously something is different between the two. Any ideas what would usually account for that that kind of power difference between engines? Slightly larger turbo?

Thanks

In alot of today's engines it's electronics. Sometimes a turbo is bigger or intake and exhaust. John Deere customers found this out years ago. The power output between a few tractor models was a jumper or software setting.

 

[Mainia]

I'm curious as to what is different about Hyundai's 2.5 turbo engines. The engine in my '23 Santa Fe 2.5T has 277 hp, but the same 2.5T in the Genesis GV70 has 300 hp. I'm saying it's the same engine because they're both designated as 2.5T, but obviously something is different between the two. Any ideas what would usually account for that that kind of power difference between engines? Slightly larger turbo?

Thanks

The difference is the ECU tune, and the transmissions are both 8 speeds. Hyundai's 8 speed dct are a "sort of" copy of the Audi/VW DCT which is technically not a dual clutch like my Kona has a true "dry" dual clutch. The late model Hyundai DCT is a close copy of the Audi/VW as Germans were most likely the main design engineers on it, and their "design model" was the Audi/VW wet clutch transmission. So it will be robust because of it.

Torque is the same and the HP is different, which would/could change when the torque comes in, in the rpm range. I would say a high chance the turbo is the same size. In stock form of both vehicles, an ECU tune can easily put the HP in the 350-375 range and torque in the 380ish range with little worries of over doing the transmission.

Here is a top tier piggy back tuning box ( one of the best) that you can safely get more power, and you do not have to flash your ECO , it just tricks the ECU to give you more power. If you use it on a warrantied car you need to take it off before you bring it to the dealer, The dealer can't see you had it on , but Hyundai/Kia engineers can, if they pull telemetry off your ECU.

https://burgertuning.com/products/j...martstream-including-n?variant=45875795329198


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[Hall]

But I'll doubt that putting 93 in my Santa Fe will give me 300hp.

Not 23 add'l HP but probably a few. The Genesis ECU is probably specifically tuned to output that 300 HP when it detects 91+ octane fuel. Your Santa Fe should do it to a small degree though, at least most modern ECUs do.