2012 Kia Optima Inquiry

Tiny
CRAIG29811
  • MEMBER
  • 2012 KIA OPTIMA
  • 2.4L
  • 4 CYL
I have a kia optima ex. It's a four cylinder engine. I think it's a 2.4L, what sense does it make to supercharge it? If I can't super charge it, what other installations can I add? I have already added a new filter and an exhaust. If I super charge my car what problems can I expect?
Friday, August 14th, 2015 AT 8:24 PM

5 Replies

Tiny
RIVERMIKERAT
  • MECHANIC
  • 6,110 POSTS
Supercharge a Kia? Zero sense. Maybe turbocharge it. But you'd have to make sure the head gasket can handle the increased compression. There's be computer remapping that would need to be done also.
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Friday, August 14th, 2015 AT 9:22 PM
Tiny
CRAIG29811
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  • 3 POSTS
So if I turbo it will it hurt the engine? Would it be a lot to manage? Would it be worth it. Just wanna have some fun, with speed. Will it reduce the amount of years that my engine will be good for? If turbo charging doesn't make sense, what other upgrades can I do?
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Saturday, August 15th, 2015 AT 10:53 AM
Tiny
RIVERMIKERAT
  • MECHANIC
  • 6,110 POSTS
IF you take care of it properly you shouldn't have many problems with it. IF it's installed and tuned correctly. The thing with forced induction is it increases the compression and most engines that don't come stock with forced induction can't handle the increased compression and horsepower as well.

I'm not really sure what's available in the aftermarket performance category for Kia. You can take it to a tuner and remap the parameters controlling engine performance. More fuel, more air. Cool air intake-colder air is denser and thus creates more power. Aftermarket coil packs (if DIS) for a hotter spark. Better plugs. Transmission reprogramming to make it shift better. F you've got money, shaving the crank to lighten it. Stroke the crank to get more displacement. Bore the block to get more displacement. Forged pistons and rods. Even taller tires can help with acceleration and top end a bit-just remember to have the speedo recalibrated if you change tire size.

One thing you need to remember: Engines usually come from the factory massively detuned because power destroys engines more quickly. You may get 200k miles from an OEM Kia engine, whereas you may get less than 80k out of a highly tuned performance engine. And that's whether you maintain the hell out of it or forget engine maintenance completely. Actually, if you forget maintenance completely, you'll probably be lucky to put 20k miles on it.
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Saturday, August 15th, 2015 AT 11:23 AM
Tiny
CRAIG29811
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  • 3 POSTS
Thank you so much rivermikerat, you've been extremely helpful. I will find a tuner near me and start to map out some plans.
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Saturday, August 15th, 2015 AT 12:20 PM
Tiny
RIVERMIKERAT
  • MECHANIC
  • 6,110 POSTS
My pleasure. Have fun with it.
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Saturday, August 15th, 2015 AT 3:32 PM

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