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New to the forums. Have a 2014 forte5 sx. Bought it used with 5000 miles. I use the car as my work vehicle. I put 300-400 miles on it each day I work. Car has done really good getting 34mpg on the hwy. I bought my first mods today which is Spectre air filter and a boost gauge. Didn't install gauge today because my buddy can get free vac line at work. But I did install Spectre air filter today and was happy with the loud spool and blow off noise. Sounds really clean. I used stock intake pipe and just added cone filter. I noticed a power loss. It seemed quite a bit quicker with stock intake. I was surprised cause it didn't seem right. Was I suppose to do something else? I've heard of people disconnecting the neggative side of battery. Anyone know what's going on or have experience with something like this?
 

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There are many more knowledgable member then myself on this board who may wish to chime in but here is my take.

Look at how the stock intake works, it's actually very efficient. Note how cold air is drawn in from the front of the engine bay.
Please correct me if I'm wrong but it sounds like you went to an auto store, purchased a cone filter, and put it on your stock intake tube.
This would be a SRI, which would not only draw hotter air from within the engine bay which by itself would decrease efficiency. If you are using one of the smaller cone filters your cars intake will be drawing not only hot air but also not enough of it quickly.
There are many back and forths about CAI/Sri and how they do/don't work to increase performance/efficiency. If you have noticed a drop off in either I'd go back to what was working better for you.
When you do a ECU reset by removing the battery cable you are just clearing the cars history and forcing it to relearn what settings allow it to deliver the preprogrammed performance ceilings placed there by kia. If you didn't notice an immediate increase in performance followed by it slowly diminishing due to the car learning the new setup, I would say it's not even worth the bother of opening the hood.

I'm sure others will chime in and correct me or elaborate on these ideas. Good luck with your ride and congrats on your purchase!
 

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New to the forums. Have a 2014 forte5 sx. Bought it used with 5000 miles. I use the car as my work vehicle. I put 300-400 miles on it each day I work. Car has done really good getting 34mpg on the hwy. I bought my first mods today which is Spectre air filter and a boost gauge. Didn't install gauge today because my buddy can get free vac line at work. But I did install Spectre air filter today and was happy with the loud spool and blow off noise. Sounds really clean. I used stock intake pipe and just added cone filter. I noticed a power loss. It seemed quite a bit quicker with stock intake. I was surprised cause it didn't seem right. Was I suppose to do something else? I've heard of people disconnecting the neggative side of battery. Anyone know what's going on or have experience with something like this?
To have a better understanding, I would need to see the air filter you installed, or more importantly know it's dimensions. If you installed something with less airflow area than stock, you will lose power.
Denn is correct too about the stock intake. Our car actually has a decent stock system. The only real way to improve that is to replace the entire system.

If you are interested in a full and proven system, check out our intake.
http://www.forteturbo.org/forum/33-6th-element-engineering/157-6th-element-engineering-short-ram-cold-air-intake-thread.html
 

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sounds like heat soak to me
these vehicles have a hesitation as it is form low to mid rpms. Either you are feeling that more intensely now with the added bit of push you gave your vehicle with the filter. Or your feeling heatsoak. I have the same setup if you, I wanted to hear how it sounded while awaiting the CAI from 6th. I have more power mid to up top. But down low exspecially when punching it and taking that big gulp of air it will fall off for a second. Being an SRI its drawing in hotter air from your engine bay.
 

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Discussion Starter #6
It seems like the stock intake doesn't get much flow either. I'm sure everyone has seen the tiny little bit of space that the air travels threw the front grill. I removed that little plastic box that would be right before the stock air filter, and now the Spectre is getting air straight threw the front grill instead of traveling threw the box. So there should definitely be an increase of air flow all around. I would think that the stock intake would act like a hot box and wouldn't be much diff than the aftermarket filter. The Spectre filter I got is a pretty good size. It wasn't the smallest of the filters. Gonna give it a couple runs today and see how I really feel about it. It sounds 10x better but the little power loss is so frustrating.
 

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Welcome!

I went out and bought a injen cai to see how it is going to be once my 6th intake arrives. I think with the filter in the bumper it pulls harder then when I first set it up as a sri. When going WOT right off the line there is a very very slight hesitation but then pulls hard. I think you have the right idea but it is heat soaking fast because you are drawing in hot air then the turbo heats it up even more bfore hitting the i.c. These little motors run pretty hot (in my opinion) so that is probably what is going on.

Order the 6th intake and be ready to hear that loud sucking noise when you take off. People think something is wrong with my car till my BOV hits!
 

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Did the sucking noise sound any different with the filter in the bumper? I have a short s shape pipe from a Sri on a previous car that I may be able to rig something up with the stock intake to act like a Cai with filter in bumper. If it sounds better I would be interested in the 6th Cai. Either way though, might just have to get used to the sound if it's still there with the Cai.
 

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Discussion Starter #10
How would the 6th Sri intake be different in comparison with my current setup as far as heat soaking goes? Does the 6th come with a heat shield? Should I make a heat shield for my current setup? I think I'm gonna at least buy an elbow piece to extend the filter away from the engine as far as possible. And maybe find a way to get colder air flow to the filter.
 

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Did the sucking noise sound any different with the filter in the bumper? I have a short s shape pipe from a Sri on a previous car that I may be able to rig something up with the stock intake to act like a Cai with filter in bumper. If it sounds better I would be interested in the 6th Cai. Either way though, might just have to get used to the sound if it's still there with the Cai.
When I tried mine as a sri it didn't seem to loud but when I put it in the bumper it was way more noticable. It is pretty loud and has a vacumme style sound to it. If thats not your thing then a sri would be best
 

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Discussion Starter #12
One more question, anyone use premium gas? I know our car calls for 87 octane. But premium gas is super cheap at my local Sams Club. I've filled up my last couple tanks with premium. Any benefits from running premium? From what I understand is that premium is for high com
 

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Continuing reply.... From what I understand is that premium is for high compression motors. And performance can actually decrease when Using premium in our cars. Can someone reply that might be able to give me a answer
 

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Premium gas will burn slower and more efficiently
The vehicles you speak of that "call" for premium are vehicles that are not targeted towards the MPG market.
Like an evo,corvette, sti etc..
These vehicles are race inspired and are tuned for high octane and will state that on the cap or gas cap lid l,drivers manual and so on.
Vehciles like ours are built and promoted as "eco" or a car that has good gas mileage. That's all it's about in today's auto world. Making a car that gets great gas mileage and at the same time has some decent power
The last thing a manufacture wants to do is make a car that gets good gas mileage, but requires you to run top tear gas That is more expensive
Even tho our vehicle is not tuned specifically for high ocrane. Our vehicle and most vehicles in today's market have an extensive amount of technology and engineering invloved compared to vehicles back in the day.
Coming equipped with variable timing allows the ecu to be able to control timing (advanced and retard) to compensate for changes that have been made.
Burning higher teir gas can cause knock, or detonation. Which is premature combustion in the cylinder. Ecu' can control this.
 

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I'm no expert but premium I think takes longer to burn or something. Reduces detention, and used on engines with higher cylinder pressures so either boosted or high compression. Someone else can probably explain it better..... I thought someone said the car can run 87 but higher octane can give you better performance. .... the car will slowly tune for the better octane. I run 94..... not sure if it makes a difference but don't think it would hurt anything....
 

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And premium gas doesn't exactly give you more power or make more power. It all stems from the properties the gas is made of and it's additives
 

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Higher octane enables you to advanced timing. Which in the end results in increases horsepower capability.
Higher octane also burns cooler. Cooler motor . more power
 

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I always run 93. But at times I have to run 91 depending on where I am when I need gas.
But I usually make sure it's the 93 I be run 93 in both my 12 and 14 optima. And now my forte.
Just being a tech and driving cars all the time I just have become really in tune with the cars I drive. So That being said when I run shit gas I know it. Regardless of how severe the results are.
 

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It gets to that point where u know how your car should feel at any given point in time
Like the same stretch of road you like to rip it on everyday to work. You know if it's 65 degrees out and not humid. You know exactally how that pull should feel.
 
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