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What's the deal with the cold air intakes?

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Old 07-25-2014, 06:36 PM   #1
dseg
 
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Default What's the deal with the cold air intakes?

I was looking to get a new intake and I am wondering how these nice air filters with tuners are "cold air" intakes when the filter is open to the hot air from the engine. Intake

On my stock '14 GT, my filter sucks air from the front of the car and is completed covered under the hood. But these air filters on American Muscle have the air filter exposed to the hot air in the engine compartment.

I also have the vents on my hood which would pour water onto these filters.

Am I missing something here?
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Old 07-25-2014, 07:41 PM   #2
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Before I installed the Vortech blower on my car I had the AFE intake pictured below. When the hood closes, it creates a barrier on top to seal the intake away from the heat coming from the motor. The only air that this intake will have access to is a factory air scoop that directs air directly to this intake.

Best of all AFE makes all their parts in their Southern California location all made in the USA, no parts are outsourced, all R&D is done in house and produced in house as well, so you can really support a great company who is passionate about manufacturing parts in the US.

AFE intakes use a very special oil base with their oiled filters, specialized and refined when AFE picked up an account to work with Toyota TRD. This oil will not gunk up your MAF and will produce a good clean signal without false MAF readings.
Click the image to open in full size.

You can see in the picture below the access to the factory scoop will lead directly into this air vent you see in the middle of the picture
Click the image to open in full size.

A proper intake like this one will use heat resistant materials to prevent heat soak:
Click the image to open in full size.

aFe Power Magnum Force Pro 5R Stage 2 Intake System for '11-'14 Ford Mustang 5.0L

Best of all they come in black, and they come in polished, and is offered at a great price. Feel free to contact me directly with any further questions
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Old 07-25-2014, 09:36 PM   #3
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What ModBargains said. That box is open to the cold air in the wheel well and sealed off from engine bay heat (someone correct me if I'm wrong).

An intake without a tune is useless, just FYI. Don't even waste your money, save up for intake + the tune. Much bigger difference and the tuner they come with will help you in the future when you mod something else and need a new tune to make it run properly.
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Old 07-25-2014, 10:21 PM   #4
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I found this video from another forum: https://www.youtube.com/watch?v=4LXYK4rR7Sw#t=59

Around 4:40 they start talking about air intake. Guess I am not "upgrading" lol
A tune will void the warranty on my brand new GT so I am not doing that right now..
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Old 07-25-2014, 10:55 PM   #5
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So, let me get this straight - people are paying many hundreds of dollars for aftermarket CAIs... and they just pull air through the same size intake that came with the car?

A fool and his money are soon parted at the hands of effective marketing.
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Old 07-25-2014, 10:58 PM   #6
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Quote:
Originally Posted by dseg View Post
I found this video from another forum: https://www.youtube.com/watch?v=4LXYK4rR7Sw#t=59

Around 4:40 they start talking about air intake. Guess I am not "upgrading" lol
A tune will void the warranty on my brand new GT so I am not doing that right now..

Good link. Ford has made it clear, on many videos and occasions, that CAIs on the 2010+ is just a waste of money. The only time I could see needing to replace the OEM intake is if you need massive amounts of air and find a custom CAI / ram air setup that truly increases the CFMs over the factory unit.
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Old 07-25-2014, 11:28 PM   #7
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Quote:
Originally Posted by dseg View Post
I found this video from another forum: https://www.youtube.com/watch?v=4LXYK4rR7Sw#t=59

Around 4:40 they start talking about air intake. Guess I am not "upgrading" lol
A tune will void the warranty on my brand new GT so I am not doing that right now..
No, it won't.
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Old 07-26-2014, 02:34 AM   #8
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not gonna touch my 2010...leave it stock...original airbox has to filter better..so must be better for the motor.
btw my 2005 had cai and tune

my 2010 is way faster..
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Old 07-26-2014, 06:35 AM   #9
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Thanks for the replies.
I guess those fancy "cold air intakes" are for the kids that want that cool look under the cool. Not sure how people do not realize these $400+ air filters are pulling air from the engine compartment...

I was looking at the seal that I heard some people mention. The air box and hood definitely do not form a seal to keep the hot engine air out. Just by looking at my '14 GT, there is no way... It would also defeat the purpose of having that massive air intake if the air is still only be sucked from the front slot.

So I do still need to replacement air filter, are these any good? K&N Link
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Old 07-26-2014, 08:57 AM   #10
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Quote:
Originally Posted by dseg View Post
Thanks for the replies.
I guess those fancy "cold air intakes" are for the kids that want that cool look under the cool. Not sure how people do not realize these $400+ air filters are pulling air from the engine compartment...

I was looking at the seal that I heard some people mention. The air box and hood definitely do not form a seal to keep the hot engine air out. Just by looking at my '14 GT, there is no way... It would also defeat the purpose of having that massive air intake if the air is still only be sucked from the front slot.

So I do still need to replacement air filter, are these any good? K&N Link
no. just pop open the stock airbox every once in a while and make sure there aren't any leaves or stuff in there. My car manages to suck up an impressive number in a relatively short time.
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Old 07-26-2014, 12:35 PM   #11
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The reason some CAI's require a tune is because they use the same MAF sensor in a larger diameter intake tube coming from the filter. This will change how the MAF sensor works. With the same CFM of air running through the intake, a larger diameter tube will meter lower on the MAF compared to a smaller one and the ECM will lean out the fuel trim. Thus the reason the intakes require a tune. A larger diameter intake tube is going to be less restrictive and can increase horsepower. I popped on my Roush CAI and even without a tune you could tell there was a difference, the throttle response was better and the sound was deeper. I am not saying you get more horsepower, because as far as I can tell you can tune the car to get just as much HP from the stock airbox that you can from the CAI, but to me the CAI has better throttle response and gives the stock exhaust a better note.
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Old 07-26-2014, 05:29 PM   #12
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Quote:
Originally Posted by jz78817 View Post
no. just pop open the stock airbox every once in a while and make sure there aren't any leaves or stuff in there. My car manages to suck up an impressive number in a relatively short time.
Stop driving through the woods and parking under trees. lol
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Old 07-26-2014, 10:57 PM   #13
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Quote:
Originally Posted by dseg View Post
Thanks for the replies.
I guess those fancy "cold air intakes" are for the kids that want that cool look under the cool. Not sure how people do not realize these $400+ air filters are pulling air from the engine compartment...

I was looking at the seal that I heard some people mention. The air box and hood definitely do not form a seal to keep the hot engine air out. Just by looking at my '14 GT, there is no way... It would also defeat the purpose of having that massive air intake if the air is still only be sucked from the front slot.

So I do still need to replacement air filter, are these any good? K&N Link
It does not defeat the purpose of the air intake. On my 2007 it also draws air from the wheel well, I don't know if it's the same for yours. An air intake without the tune IS pretty much pointless. An air intake in combination with a tune is a proven gain (mostly from the tune), but as was also explained, a larger diameter intake also draws more air for the tuned engine to utilize.

From what I understand the intake on the 5.0 does a fine job by itself, but you still can't dismiss the gains of a larger diameter intake and a good tune as a "cool look".

Just get the regular replacement filter if you're not going to swap to a CAI.
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Old 07-26-2014, 11:28 PM   #14
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please not K&N...
Wix or motorcraft if you want to replace it.
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Old 07-26-2014, 11:36 PM   #15
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On my 2014 I can see what the air temp is coming in on my digital dash. When the car's idle, IE sitting at a traffic light, the air temp rises which would be expected. While driving the air temp coming in is identical to what my car says the outside air temp is. Which again, is logical. Other than driving around with bags of ice inside my CAI, I don't know how else to lower that incoming temp.

FWIW, I have the Airaid RACE CAI for my 5.0
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Old 07-27-2014, 07:44 AM   #16
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Quote:
Originally Posted by krazykevin View Post
please not K&N...
Wix or motorcraft if you want to replace it.
What's wrong with the k&n replacement filter?
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Old 07-27-2014, 01:22 PM   #17
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Quote:
Originally Posted by dseg View Post
What's wrong with the k&n replacement filter?
Many here have found that the charging oil can gum up with throttle body - especially if you use too much oil (which I always seem to have done on my past vehicles)
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Old 07-27-2014, 04:37 PM   #18
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Quote:
Originally Posted by Buchez09GT View Post
On my 2014 I can see what the air temp is coming in on my digital dash. When the car's idle, IE sitting at a traffic light, the air temp rises which would be expected. While driving the air temp coming in is identical to what my car says the outside air temp is. Which again, is logical. Other than driving around with bags of ice inside my CAI, I don't know how else to lower that incoming temp.

FWIW, I have the Airaid RACE CAI for my 5.0
This has been my experience with the whipple CAI and it just has a metal shroud around it, not really blocking any heat from the motor.
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Old 07-28-2014, 10:30 AM   #19
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For those saying intakes are useless without a tune, or they don't feel intakes make much power or that it's not worth it. Here's AFE's dyno, please note it's on a Mustang Dyno so numbers look lower here than on a dynojet for example. But even still at 4700RPM we get a delta of 25.3HP and at 4775RPM we see a delta of 29.1ft/lbs at the WHEELS. Mind you the delta isn't the PEAK gain, but it's USABLE mid-range power that you use on a daily basis since we don't all redline every single gear while driving of course. Here's proof:

Click the image to open in full size.

No tune, just before/after with an intake for a Mustang that already had an axle back exhaust and nothing else.
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Old 07-31-2014, 06:09 PM   #20
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If you are driving it doesn't really matter where it pulls from. The air going into the intake will be the same temperature as it is outside, within a degree or 2. Check out you IAT sensor to confirm this.
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Old 07-31-2014, 06:09 PM
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