2.5L tuning options and performance

[NYBIOMED]

I guess it's all about what expectations you have, the 2.5T will never be as fast as the 3.3TT. But, if you want to play with the base BMW 3/4 series and the Audi A4/5s and others, you have that ability to more than "hold your own" against this crowd. I actually get a lot of "what is that, a Maserati"? No regrets, love the 2.5T. Regarding the JB4 on MAP3- ethanol mix , if I had to put a number to it, feels like 30-35HP more IMHO...but it's a cheap an easy install, so its worth it, esp. BC there's really not much else.

 

[kielbasa]

Nybiomed, thanks!
Of course, I know it will never be as fast as 3.3, but it can be close, with much less cash spent
Those 30-35BHP more sound intriguing as a map3 hence the question to Terry

It means the actual gains depend on the fuel used, mods, dyno conditions, etc.

Terry, could You tell me more about it?
If you're saying it depends on the mods, how this jb4 really works? It somehow adapts to what has been done on a car, reads knocks, AFR, EGT and so on, and sets the maximum power possible according to the mod setup?
Or it's just set in the way that map 1 -2 are bhp gains ready to work without any mods, and for maps 3-4 you need to have certain mods on a car and you cannot use them unless You prepare the car accordingly?
Would be great if someone clarify that for me, as I don't quite understand how it works.
I only remember the times when those so-called 'tuning boxes' just added a certain amount of power, and they were generally not recommended.

 

[RKA123]

Nybiomed, thanks!
Of course, I know it will never be as fast as 3.3, but it can be close, with much less cash spent
Those 30-35BHP more sound intriguing as a map3 hence the question to Terry


Terry, could You tell me more about it?
If you're saying it depends on the mods, how this jb4 really works? It somehow adapts to what has been done on a car, reads knocks, AFR, EGT and so on, and sets the maximum power possible according to the mod setup?
Or it's just set in the way that map 1 -2 are bhp gains ready to work without any mods, and for maps 3-4 you need to have certain mods on a car and you cannot use them unless You prepare the car accordingly?
Would be great if someone clarify that for me, as I don't quite understand how it works.
I only remember the times when those so-called 'tuning boxes' just added a certain amount of power, and they were generally not recommended.

The JB4 is a piggyback tune that also has lots of logging functionality built into it. Map 1 and 2 can be run with regular pump gasoline (91 or 93 octane), and Map 3 or 4 requires the use of some ethanol to hit a E30 blend. Dan00Hawk at the forums here was gracious enough to provide his Dragy results with his 2.5T at the link below (Spoiler: The 2.5T in stock form is a high 5 second 0-60 car, and with the JB4 running Map 2 it becomes a mid 5 second 0-60 car)

2.5t with Map 2 JB4 Dragy results

I have noticed you refer to horsepower and torque as BHP and NM - I just find it curious as i'm assuming you are not located in the USA. I found it quite odd that KIA did not release the 2.5T Stinger widely and a lot of international markets even in the 2022/2023 model years only received the 2.0T or 3.3T. Just something to consider if you're not in a market where the 2.5T Stinger is available.

 

[kielbasa]

yep, You're right. I'm in central Europe. Stinger 2.5L was never available here that's why I'm so interested in this engine. And to me, sounds like a very good compromise. My initial plan was to import one of them at the end of this year

Thanks for the link!

 

[RKA123]

yep, You're right. I'm in central Europe. Stinger 2.5L was never available here that's why I'm so interested in this engine. And to me, sounds like a very good compromise. My initial plan was to import one of them at the end of this year

Thanks for the link!

That makes sense, and the use of metric units was the only giveaway to me as your English is great. Unfortunately, the 2.5T does not have any other engine performance enhancing modifications (excluding the JB4) other than an air intake or exhaust modification at this time. Dan00Hawk ran his Dragy numbers using a do it yourself air intake modification replacing the stock air intake box with an aftermarket cone filter, as the 2.5T does not have any official aftermarket air intakes available.

I do find the 2.5T is a good step up in performance over a 2.0T with either the same or better fuel economy. This is what drew me to the 2.5T to begin with and it's certainly fast enough for my purposes.

 

[kielbasa]

I can assume that according to what I've seen and what the owners state, this car should be absolutely enough for me being stock.
But knowing me and my tendencies, I'd like to mod it just a bit in the future
I think that's not a big deal if there are no performance upgrades on the market. I'd say intake is not so important for 50-100KM gains, just my guess. And more serious mods like dp3` or exhaust can be custom-made with ease so I'm not worried about it ..

I own a Saab 9-5NG now, imported from States - stupid things like front right wheel arch liners are almost impossible to find. Any used rear led bar (from a 10years old car) costs around 1000 euros. Front bumper (Aero model) is a white crow, You are lucky if You find any, even used. Prices start from 1500-2000euro. Most parts are simply no longer produced...
Imagine You own an Aero model and You've just run over a cat... Only the bumper needs to be replaced, You can have the best insurance ever but so what....Your car is reported as a total loss and the problem stays on Your side

So trust me - such problems like not available performance upgrades for a Stinger is not a big deal at all

 

[Thomby]

RKA123, thanks!
It's a huge difference in mpg. A friend of mine who owns a 3.3 cannot get better than a 17mpg average.
But most of the aftermarket support is the accessories and body parts shared between the models, so what exactly do You have in mind?

Unless he's doing all urban driving, or blasting through the boost constantly, that seems hard to believe. I've seen 29 mpg on the highway (babying it, but going 70+), and my typical mixed driving will range from 23-26 mpg depending on how long I'm cruising. The only times I see 17 or worse are when I'm revving it out or in the first couple miles of a trip.

 

[kielbasa]

Thomby.
17mpg city is what the factory claims (and they always tend to lower it), so I guess he's not alone

He ended up having ~10L/100km which gives 23-24mpg, on a highway only.
Sorry, but driving around a big city with 23-26mpg sounds like a miracle

 

[Volfy]

Even is Australia, which is one of the countries where the Stinger actually did quite well, they continue to offer 2.0T and 3.3T. Several police agencies there have adopted the Stinger 3.3T as patrol vehicles.

While the 2.5T does add +45 HP and +51 lbs-ft compared to the 2.0T, it also added 203 lbs to the curb weight. While neither is trivial, the added HP/TQ certainly more than offset the weight gain.

 

[RKA123]

Even is Australia, which is one of the countries where the Stinger actually did quite well, they continue to offer 2.0T and 3.3T. Several police agencies there have adopted the Stinger 3.3T as patrol vehicles.

While the 2.5T does add +45 HP and +51 lbs-ft compared to the 2.0T, it also added 203 lbs to the curb weight. While neither is trivial, the added HP/TQ certainly more than offset the weight gain.

I always thought it was odd the US 2022/2023 GT-Line brake rotors were upgraded to 345mm front rotors/330mm rear rotors from the 2018-2021 GT-Line's with 320mm front rotors/315mm rear rotors. 2023 GT-Line's can also get the monoblock Brembo brakes with the Apex package that includes 350mm/340mm rotors. It would make sense with the extra power and weight they gave the base 2022+ GT-Line models more brake power to deal with it.

I think Europe always got the 345mm/330mm rotors stock over the 320mm/315mm rotors on the 2.0T models. I'm fairly sure as well the 345mm/330mm package is what Genesis calls the "performance" brake option (non Brembo) on the G70.

 

[Volfy]

I always thought it was odd the US 2022/2023 GT-Line brake rotors were upgraded to 345mm front rotors/330mm rear rotors from the 2018-2021 GT-Line's with 330mm front rotors/320mm rear rotors. 2023 GT-Line's can also get the monoblock Brembo brakes with the Apex package that includes 350mm/340mm rotors. It would make sense with the extra power and weight they gave the base 2022+ GT-Line models more brake power to deal with it.

I think Europe always got the 345mm/330mm rotors stock over the 330/320mm rotors on the 2.0T models. I'm fairly sure as well the 345mm/330mm package is what Genesis calls the "performance" brake option (non Brembo) on the G70.

For 2019-21 G70s, all 3.3T models used to get Brembos. Since 2022+, only the top 3.3T trim gets Brembo apparently. The others get the larger rotors but with single-piston floating calipers. The saving grace is that made it much easier to upgrade to Brembo calipers. When I did my Brembo conversion on the Stinger 2.0T, I had to replace the smaller rotors with larger ones, and I had to bend the rear dust shield to fit the larger rotors. I eventually replaced the rear dust shields, which was a PITN job.

I am glad that all 2022+ Stinger got the larger rotors. That is what Kia should've done from day 1. Cannot imagine the larger rotors costing that much more. Just the simplified logistics for mfg and after-sale support would have more than made up for the slight cost increase.

 

[RKA123]

For 2019-21 G70s, all 3.3T models used to get Brembos. Since 2022+, only the top 3.3T trim gets Brembo apparently. The others get the larger rotors but with single-piston floating calipers. The saving grace is that made it much easier to upgrade to Brembo calipers. When I did my Brembo conversion on the Stinger 2.0T, I had to replace the smaller rotors with larger ones, and I had to bend the rear dust shield to fit the larger rotors. I eventually replaced the rear dust shields, which was a PITN job.

I am glad that all 2022+ Stinger got the larger rotors. That is what Kia should've done from day 1. Cannot imagine the larger rotors costing that much more. Just the simplified logistics for mfg and after-sale support would have more than made up for the slight cost increase.

Wow, I looked it up and you're absolutely correct. I am surprised you can get a 2022+ G70 3.3T with non Brembo brakes.

For the record i'm happy with the upgraded 345mm/330mm package on my 2022 GT-Line. I don't have any of the brake vibration issues that the Brembo owners sometimes get with the stock pads made of Havarti cheese. Obviously this can be resolved with a set of quality aftermarket brake pads, but its just puzzling KIA USA specified those pads with the Brembos.

 

[NYBIOMED]

Wow, I looked it up and you're absolutely correct. I am surprised you can get a 2022+ G70 3.3T with non Brembo brakes.

For the record i'm happy with the upgraded 345mm/330mm package on my 2022 GT-Line. I don't have any of the brake vibration issues that the Brembo owners sometimes get with the stock pads made of Havarti cheese. Obviously this can be resolved with a set of quality aftermarket brake pads, but its just puzzling KIA USA specified those pads with the Brembos.

I agree with you, the 345/330mm brakes on the GT-Line are very good, but I have upgraded the fronts to the Brembos and can attest, the braking performance does indeed get modestly better. One of these days I‘ll get around to the rears, I just need to get the caliper rebuild kits- I already have everything else Ready to go. I had the calipers powdercoated, as I didn’t much care for the red calipers on my Ascot green 2022.

 

[LetekHimself]

R and d intake for the 2.5 *not my picture* you won't find this anywhere. I want it tho

 

[NYBIOMED]

Looks superb....Where do you get this?

 

[LetekHimself]

Looks superb....Where do you get this?

You can't yet. Someone is trading it on fb marketplace for stock. ImO it needs clear lexon sealing off the top. But it's nice. It's made by Afe. It's in research and development so they aren't selling yet. I really want one.

 

[LetekHimself]

ITS HERE! You can now preorder AFE Takeda sealed CAI for the 2022-2023 Kia Stinger GT-Line 2.5L turbo! They will be send out early Feb. Also they will have an open concept cai available for preorder next week that will be sent out March... (im kinda happy they beat Injen, cause i wanted a sealed unit for preformance) its on sale from $500 to $423 and i found a 10% coupon if u sign up to thier email letter and it ended up costing $380 !!!

#AFE #Takeda #afetakeda #cai #truecai #kia #stinger #gtline #kiastinger #stingergtline #stinger2point5 #kdm #turbo #velossatech #turbosnail

 

[NYBIOMED]

I want one, signed up for 10% off, but nada yet…been hours

 

[danylo.podilchyk]

Just found out that IMR America sell the down pipe for a 2.5T Stinger and G70

Hoping to see dyno charts and sound video
Anyone preordering?

 

[Volfy]

Interesting... seems like now that G70 has finally switched to 2.5T, the aftermarket support is picking up steam.

I put a pre-order in for the Takeda CAI over the holidays.