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Discussion Starter · #1 ·
Just curious as to how much horsepower we can run on stock internals? Also, can we just slap on a DIY bleed valve and Jack up the boost? Or are we "Endangering the Manifold?"

With that, would it be cheaper to do a DIY FMIC and CAI and then get a custom manifold made to jack up supreme boost and horsepower goodness? And possibly have a Tork tune respective to these mods? Just speculating. None of this might be reasonable but hey, I'm 18 and this is my first turbo car, just exploring.
 

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a custom manifold would require a new turbo as our turbo manifold has the exhaust housing molded into it.

the stock waste gate is controlled electronically so with my thoughts, it would probably throw a check engine light for over boost if you tried to manually crank it up.

if you want to upgrade the bov, you can do the turbo socks mod for alittle higher and more consistent boost, but from what ive read, the stock BOV will have its diaphram torn up up if you attempt it with a stock valve

i would also have a few bolt ons under your belt prior to a tune as itll help the affectiveness of the tune when you can tell tork that you have breathing and exhaling mods to the engine, although tork says is greatly improves the driving experience of the car with a tune

just remember this.... a lot of V8 engines live long healthy lives because they are "understressed" engines for the most part, a lot of people just drive their v8's normally and the engine doesnt get stressed because they usually shift normally around 2500 to 3500 RPM's

where a smaller 4cyl motor thats boosted and getting "worked" on it'll stress the components alittle more thus will shorten its life... im not saying that a Koup or 5 with minor bolt ons wont last for 100K miles but just something to keep in mind when stressing the motor over more boost.

this is usually when people say pick 2 out of 3...

cheap / long life / high performance
 

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Discussion Starter · #3 ·
Thanks for the info. So none of those are withing my reason of modifying the car. Kia definitely limited the market on manual and easy horsepower gains. Mostly due to durability I can see. I just need the Forte to last me about 3-4 years (through college) and at that point, I hope to make it a rally car and to own the 2017 Hyundai Genesis 3.8tt if it comes out.
 

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If you want more boost spend the cash and get a tune. Don't try to cheap out on it because you could blow the motor.

From what I have been reading we can hit 270hp but after that expect the motor to pop a rod. If you want more then you will have to do a build like what knee is doing.

The upgrades you will notice are 60mm tb, fmic, hotpipe, cai, dp, full exhaust, tune. You can do the others before the tune.
 
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