How much HP can the standard 8 sp Kia Auto take ?

PFerrari

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Hi All,

I am about to start ramping up the HP on my 2020 Stinger V6 . Not sure how far the budget will allow, but preliminary target is +500 HP and so I would appreciate any feedback from the forum as to gearbox and/or differential issues that others have experienced when increasing HP .

Thanks .
 
Gees. Well good luck with that

My biggest concern is that the hardware is not made for that so maybe you might chew out Diffs and axles but hey it's your car :)
 
Last edited:
Hi All,

I am about to start ramping up the HP on my 2020 Stinger V6 . Not sure how far the budget will allow, but preliminary target is +500 HP and so I would appreciate any feedback from the forum as to gearbox and/or differential issues that others have experienced when increasing HP .

Thanks .
Welcome. Just noting that this topic has been moved out of the community lounge and into the Stinger tuning forum.
 
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My biggest concern is that the hardware is not made for that so maybe you might chew out Diffs and axles but hey it's your car
There is no evidence of these being the limiting factors at the 500hp mark or in general. To @PFerrari, the short answer is that colder/tighter plugs and an octane booster like E85/ethanol will let you tune ~100-125hp out of the stock hardware, ie approaching 500bhp, with no other changes.

After that, there are power adders like methanol or charge pipe injection ("7th injector"), or even upgraded turbos, to get closer to 600hp. Typically head lift is the concern there, not the transmission/diff.
 
Ha hah. I enjoy questions like these, it's one of the reasons I keep opening the Stinger Forum every morning. These questions come along. But not often enough to satisfy me, still, beggars can't be choosers.

I, do, not, mod. Bone stock is the way to go. If I wanted a more powerful setup I'd by a more powerful bone stock setup. Pay to play.

Race cars are what you are aping with questions like these. Of course, any warranty is out the window as soon as you start down that rabbit hole. Pay to play.

I recall a S. Korean member some years back. Arguably, the Koreans modify more than any other place on earth. Judging by his standards, he was very heavily modified and kept adding stuff, just because, and because he raced his Stinger. Boom. And he's gone, no doubt off to modify some other brand of car.

To answer your question, along with @Thomby, or rather to add another confirmation to what has been said, the only powertrain failures on modified Stingers I have read about were extreme mods and racing their cars. Modified street machines don't blow up, unless you additionally do stupid things like abuse them through ignorance/neglect, or incompetently modify them, i.e., don't know what the heck you are doing.

Let us know how it goes, if you will.
 
From interior to exterior to high performance - everything you need for your Stinger awaits you...
Gees. Well good luck with that

My biggest concern is that the hardware is not made for that so maybe you might chew out Diffs and axles but hey it's your car :)
Thanks AG, have had experience 30 years ago in my 20s with Aussie cars like HK and HQ monaros - one small block and one big block Chevy powered, so mechanical failures are sometimes part of the process. Now in my 50's and finally can breathe again financially and have ended up with a Stinger that started as a Company Car, but I have now bought at the end of the lease, so would love to have something seriously quick again, but not that familiar with the hardware . I will post all failures as they happen !
 
There is no evidence of these being the limiting factors at the 500hp mark or in general. To @PFerrari, the short answer is that colder/tighter plugs and an octane booster like E85/ethanol will let you tune ~100-125hp out of the stock hardware, ie approaching 500bhp, with no other changes.

After that, there are power adders like methanol or charge pipe injection ("7th injector"), or even upgraded turbos, to get closer to 600hp. Typically head lift is the concern there, not the transmission/diff.
Thanks Thomby, so far the plan will take in mostly engine mods and yes there upgraded turbos, ECU, exhaust ...etc so wasn't sure if I needed to start planning transmission and/or diff changes. Will post updates ( including any failures ! ) as they happen.
 
Ha hah. I enjoy questions like these, it's one of the reasons I keep opening the Stinger Forum every morning. These questions come along. But not often enough to satisfy me, still, beggars can't be choosers.

I, do, not, mod. Bone stock is the way to go. If I wanted a more powerful setup I'd by a more powerful bone stock setup. Pay to play.

Race cars are what you are aping with questions like these. Of course, any warranty is out the window as soon as you start down that rabbit hole. Pay to play.

I recall a S. Korean member some years back. Arguably, the Koreans modify more than any other place on earth. Judging by his standards, he was very heavily modified and kept adding stuff, just because, and because he raced his Stinger. Boom. And he's gone, no doubt off to modify some other brand of car.

To answer your question, along with @Thomby, or rather to add another confirmation to what has been said, the only powertrain failures on modified Stingers I have read about were extreme mods and racing their cars. Modified street machines don't blow up, unless you additionally do stupid things like abuse them through ignorance/neglect, or incompetently modify them, i.e., don't know what the heck you are doing.

Let us know how it goes, if you will.
Thanks Snicklefritz !

Car has been my Company Car daily driver for the last 5 years, with close to 180,000 kms clocked up, and apart from an ignition coil that failed, has been a wonderful and reliable car. I have the opportunity to buy the car off my employer at the end of lease and so want to have a toy that can be used on weekends only and has some serious power - I used to have some strong small and big block powered Chevys in my 20's so now that I have caught up with life financially again, can indulge in having a toy now that I am in my 50's ! The aftermarket for Chevy and Ford is saturated with components - I was not familiar with what options there are for Kia if high HP means that factory transmission and/or diffs require replacement. I will post all upgrades ( and failures ! ) as the build progresses.
 
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