3.3TT Have run a couple of test on the OEM air box set up

[G-354802]

It certainly results in a reduction in vacuum, I'm not suggesting that is going to make much of a difference in performance, but a 55% reduction in vacuum definitely will make a difference.
The fact that it cost nothing, and that there is no disadvantage ie still has 100% cold air and rain water protection, is what I like

 

[dddd]

This is really interesting. So removal of this part results in a reduction in pressure thus allowing MORE air to freely enter the intake system, gaining power? It's well documented that the engine/ecu will need time to react to the change. I wonder how much of a difference in power and/or drive-ability we are talking about...

It will certainly make a difference in the reduction of vacuum. I'm not suggesting it will make a much of difference in power, having said that a 55% reduction in vacuum has to make some sort of a gain in power and throttle response
But even if its just a small increase in efficiency, what I like is that it is a simple no cost modification that has no disadvantages ie it still has 100% cold air and excellent rain protection, that can't be seen.

 

[Kiksbut]

Is bumper removal needed?

 

[Hyperjetta]

Is bumper removal needed?

Yeah, bumper cover has to come off.

 

[General_Vodka]

Yeah, bumper cover has to come off.

I think I got a bit carried away......

 

[Hyperjetta]

Cea

I think I got a bit carried away...... View attachment 38686

Quick, put it back together!

 

[Slip_Angle]

You're removing this piece, it's well documented, follow the big mouth installation procedures to get access to it

Just to clarify, there is one of these on each side of the car, right?

 

[dddd]

Correct

 

[Luc343]

I think your engine needs a bit of a clean...

 

[Slip_Angle]

Just wanted to follow up on this thread. I ended up removing the restrictive inlets to reduce the restrictions as @dddd showed in his testing. I also replaced the factory filters with AEM dry flow filters. My thinking is that together the improvement should equal any POD/Tube style intake for maximum flow and do a better job of keeping intake temperature down vs a POD/Tube intake. I may add inlet snorkels at some point to better direct flow but only if they are decently priced.

I do wish for the sound of the POD style filter though...

Here is a recent article with some testing between CAI and a Factory Airbox setup
Cold Air Intake vs. Stock Intake: Quantitative Testing

 

[Travis Wills]

Just wanted to follow up on this thread. I ended up removing the restrictive inlets to reduce the restrictions as @dddd showed in his testing. I also replaced the factory filters with AEM dry flow filters. My thinking is that together the improvement should equal any POD/Tube style intake for maximum flow and do a better job of keeping intake temperature down vs a POD/Tube intake. I may add inlet snorkels at some point to better direct flow but only if they are decently priced.

I do wish for the sound of the POD style filter though...

Here is a recent article with some testing between CAI and a Factory Airbox setup
Cold Air Intake vs. Stock Intake: Quantitative Testing

My only performance modifications are the AirScoops snorkels and the AEM drop in panel filters in the factory airbox. Those two simple changes that cost me less than $250 have added 3.16 mph to my 1/4 mile trap speed.



I actually bought a small pressure reading device and put it in the airbox. It showed a measurable increase in air pressure inside the airbox when at speed. It was pretty cool. As long as you weren’t on the gas and you were at speed you could see the ram air effect of the snorkels feeding air into the filters.





Those aftermarket panel filters aren’t actually as restrictive as people think they are. They are actually very close to the efficiency of the equivalent sized cone filter.

I am working on a video that explains everything I have tested so far. I honestly think that the factory air boxes could be a better option than some of the aftermarket open air solutions.

 

[Slip_Angle]

My only performance modifications are the AirScoops snorkels and the AEM drop in panel filters in the factory airbox. Those two simple changes that cost me less than $250 have added 3.16 mph to my 1/4 mile trap speed.

View attachment 53392

I actually bought a small pressure reading device and put it in the airbox. It showed a measurable increase in air pressure inside the airbox when at speed. It was pretty cool. As long as you weren’t on the gas and you were at speed you could see the ram air effect of the snorkels feeding air into the filters.

View attachment 53393

View attachment 53394

Those aftermarket panel filters aren’t actually as restrictive as people think they are. They are actually very close to the efficiency of the equivalent sized cone filter.

I am working on a video that explains everything I have tested so far. I honestly think that the factory air boxes could be a better option than some of the aftermarket open air solutions.

Very, very nice! This is the kind of data that really shows what modifications makes a difference and how. Once you have the video, please post it. I'm very interested to watch it.

I would really like to grab a set of those AirScoops but I have a G70 and I don't think they fit the same. (Someone correct me if I'm wrong!) I believe the person making them was engineering a version for the G70? Once they do, I'll buy a set.

 

[Travis Wills]

Very, very nice! This is the kind of data that really shows what modifications makes a difference and how. Once you have the video, please post it. I'm very interested to watch it.

I would really like to grab a set of those AirScoops but I have a G70 and I don't think they fit the same. (Someone correct me if I'm wrong!) I believe the person making them was engineering a version for the G70? Once they do, I'll buy a set.

I am not certain they will fit but I looked at some pictures of the air intake system and they look like they will fit.

Also they advertise the he Velossa snorkels for the G70 so the AirScoops ones should fit as well. That factory AirScoop definitely could help with reliability but it definitely is a major restriction and I don’t think it gets the coldest air possible.

VelossaTech - Big Mouth Cold Air Intake Kia Stinger

www.khartunerz.com

 

[Slip_Angle]

I am not certain they will fit but I looked at some pictures of the air intake system and they look like they will fit.

Also they advertise the he Velossa snorkels for the G70 so the AirScoops ones should fit as well. That factory AirScoop definitely could help with reliability but it definitely is a major restriction and I don’t think it gets the coldest air possible.

VelossaTech - Big Mouth Cold Air Intake Kia Stinger

www.khartunerz.com

The VT snorkels require the active shroud be removed on the G70 and the servo be modified. It's reversible but still a pain in the neck.

 

[Shockington]

Just wanted to follow up on this thread. I ended up removing the restrictive inlets to reduce the restrictions as @dddd showed in his testing. I also replaced the factory filters with AEM dry flow filters. My thinking is that together the improvement should equal any POD/Tube style intake for maximum flow and do a better job of keeping intake temperature down vs a POD/Tube intake. I may add inlet snorkels at some point to better direct flow but only if they are decently priced.

I do wish for the sound of the POD style filter though...

Here is a recent article with some testing between CAI and a Factory Airbox setup
Cold Air Intake vs. Stock Intake: Quantitative Testing

I did my intakes specifically for the sound. I don't feel any real increase is power or responsiveness.

The induction sound certainly makes you "feel" like it's faster though.

 

[Travis Wills]

I did my intakes specifically for the sound. I don't feel any real increase is power or responsiveness.

The induction sound certainly makes you "feel" like it's faster though.

There definitely is some merit in having it sound faster. Some people really like that. Others don’t. However, it should be made clear that modifications to the intake system can offer substantial performance gains even with stock vehicles. However, it is actually less likely that you will get the “sound enhancement” along with the maximum performance enhance as opposed to just keeping the sound the same and maximizing flow rate and minimizing intake temperatures.

 

[Travis Wills]

The VT snorkels require the active shroud be removed on the G70 and the servo be modified. It's reversible but still a pain in the neck.

There is an “active” shroud on the G70? The Stinger has a shroud but it is static and passive. I just removed mine because it can be reinstalled later if you want to take it back to stock.

 

[Slip_Angle]

There is an “active” shroud on the G70? The Stinger has a shroud but it is static and passive. I just removed mine because it can be reinstalled later if you want to take it back to stock.

Yep, there is... Not sure why the 2 cars would be different... odd

 

[Slip_Angle]

Complete fluke but I found a set of VT snorkels on the G70 board used and in Canada too. Price was right as well. They are on their way! Super interested to see how they change the things.

 

[dddd]

Complete fluke but I found a set of VT snorkels on the G70 board used and in Canada too. Price was right as well. They are on their way! Super interested to see how they change the things.

Please let us know how you find them. One thing that does worry me about these snorkels is rain getting into the air box, I would be curious to hear your thoughts on that subject

 

[Slip_Angle]

Please let us know how you find them. One thing that does worry me about these snorkels is rain getting into the air box, I would be curious to hear your thoughts on that subject

Someone actually asked that when they first came out.. VT's answer...

"We did torrential rain testing.

There just isnt enough water in rain to cause an issue. Youd have to hit a puddle 3 feet deep at wide open throttle at 60 mph to ingest enough water to make it past the filters, i think if you did that youd probably have bigger problems. We do all our rain testing here in florida. As long as you stay out of 3 foot puddles, youll be fine."

Velossa Tech BIG MOUTH Picture Thread!!