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Old 08-20-2014, 03:12 PM   #1
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Heat extractors

I searched but did not find any answers to my question. The heat extractors on the 13-14 I know are functional to an extent. Does anyone know how much cooler they keep the engine bay or if there are any benefits at all? I'm assuming their pretty much for appearance.


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Old 08-20-2014, 03:29 PM   #2
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Theres no one answer for the question you're asking. Depends on ambient temp, crusing speed, mods (headers vs stock...) ect. They do help, but its impossible to say by how much.
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Old 08-20-2014, 03:52 PM   #3
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Quote:
Originally Posted by Noodles76 View Post
I searched but did not find any answers to my question. The heat extractors on the 13-14 I know are functional to an extent. Does anyone know how much cooler they keep the engine bay or if there are any benefits at all? I'm assuming their pretty much for appearance.


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I tend to believe that if they were just for appearance they would not be open, similar to the hood scoop on a New Edge.
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Old 08-20-2014, 04:35 PM   #4
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Just think of it this way, anytime you can let hot air escape, or cooler air in, it's helping..


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Old 08-20-2014, 04:39 PM   #5
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Definitely better than a non functioning hood scoop that came the 2000 (?) Mustang GT.

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Old 08-20-2014, 04:44 PM   #6
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Make that scoop functional..not saying run a hose to your air filter, just something to let air in and out.. Makes a big difference..


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Old 08-21-2014, 11:56 AM   #7
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I believe the intent is more of an aerodynamic thing than a heat thing, sort of.
The idea was, at speed, to allow a place for air to escape the engine bay and create a low pressure area (lower pressure in the engine bay is always better), drawing in more air through the grille and radiator. It probably also helps a lot with hood lift.
I imagine is has minimal if any effect when not moving or moving slowly.
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Old 08-21-2014, 12:48 PM   #8
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Hi folks, this I posed in teh CAI thread. I was asked since 2011-2012 cars did not have the heat extractors they were for looks and I disagree..
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Here is the difference. 2011-2012 engines used oil squirters on the piston skirts. Ford found #8 cylinder had higher heating problems. Ford removed the oil squirters in the 2013+ engines and replaced the pistons with coated ones. Added the heat vents to reduce the heat problem, and got more HPR due to less oil windage.
---------------------------------------------------------------------
There is plenty of true information and misinformation on the #8 issue available that I read though many times while trying to get to sleep
Facts are that cylinder does not get cooled as much as the others. Folks without tunes had #8 failures. Tunes removing knock sensors made the problem worse.
Ford changed serious ways things to the engine pistons in 2013, including removing the oil squirters to piston skirts, and putting in coated pistons; and by coincidence, working heat extractors in the hood. Idling in 95 degree weather the air over my hood has huge heat mirage coming out the vents and things really get better when moving forward. The vents work.
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Old 08-21-2014, 01:24 PM   #9
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Hmmmm that's def something to think about


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Old 08-21-2014, 03:06 PM   #10
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The vents are definitely functional. It's awesome seeing the heat mirages when you're stopped on a hot day.
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Old 08-21-2014, 08:32 PM   #11
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I think They help a good bit. My buddy's 12 gt always fogs up his windshield no matter what the temp is outside. On his some of the heat comes out around the wipers. On my 14 I don't have that problem I'm assuming it's because of the extractors. I do know that they make a nice hand warmer on a cold day though haha. So I would think they do pretty well removing heat


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Old 09-09-2014, 01:43 AM   #12
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Is it a good idea to cut the fiberglass heatshield under the vents


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Old 09-09-2014, 01:52 AM   #13
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Yep, you might have to clean your engine a little more, but the cut heat shield/mat lets out more heat, and more air under speed.
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Old 09-09-2014, 01:57 AM   #14
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How about when it rains will the water screw with any of the electronics? And why is it covered stock why didn't ford leave it open.


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Old 09-09-2014, 08:20 AM   #15
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I also vote that they are functional. It's pretty amazing to see the heat come out of them.

As far as water, I've done a lot of observation on water getting in. I have the Steeda CAI and I was momentarily concerned about water getting on the filter because of the vents. Does water get in? Yes. Is it enough to worry about considering the filter and electronics? No way. That 5.0 is so hot it all evaporates very quickly and not enough gets in to not get too concerned about it.

Also, what is really cool (and I'm not sure if this is on 10-12s), on the highway the air temp on the intake reads a few degrees cooler than the temp on the stereo. I know it's not super useful, but for a CAI with air moving around the engine bay to be a bit cooler than normal outside air is pretty interesting.
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Old 09-09-2014, 08:52 AM   #16
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Awesome thanks guys I bought the carbon fiber vents from American muscle and they look amazing I'm glade to hear they're practical as well and that I can cut the fiberglass away


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Old 09-09-2014, 03:10 PM   #17
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I also removed my rear cowl weather striping to further help heat escape from the engine bay. My vents have also had the hood insulation cut fully out and around where the vents are for more cooling. After stopping I feel a lot of heat now coming out from around rear of hood and vents now. I even DEI cool wrapped the fuel line and rails going into the intake. LOL. The more cooling the better.
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Old 09-10-2014, 07:26 AM   #18
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What do you guys think of the after market hood vents from am.


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Old 09-10-2014, 09:54 PM   #19
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I think they're amazing looking I'll take a better picture in the morning


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Old 09-11-2014, 12:02 AM   #20
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Wait until they start peeling and bubbling. I've had 3 sets. Every single one, the clear coat separates and eventually cracks on the last vent where it's not cut out like the factory vents. It starts out by looking a little milky and then it eventually separates. Huge design flaw by trucarbon. My current set is 3 months old and they look awful.

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Old 09-12-2014, 07:19 PM   #21
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I just cut my vent openings back tonight,only about 1 inch which doubles the size of the opening,but still will guide water away from the engine. I painted the fresh cuts with a shot of flat black spray paint for a clean look. I can allways cut it bigger later but am going to see how this works.
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Old 09-12-2014, 10:16 PM   #22
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I just cut my vent openings back tonight,only about 1 inch which doubles the size of the opening,but still will guide water away from the engine. I painted the fresh cuts with a shot of flat black spray paint for a clean look. I can allways cut it bigger later but am going to see how this works.
You just lost 3K on your cars resale value....Just Kidding
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Old 09-13-2014, 01:07 PM   #23
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You just lost 3K on your cars resale value....Just Kidding
I had that in mind when I did it. Thats why I taped it off with masking tape and used a new razor blade, you cant tell it ever happened as it still looks factory. good lighting and a steady hand is a plus too.
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Old 09-13-2014, 01:40 PM   #24
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Quote:
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I had that in mind when I did it. Thats why I taped it off with masking tape and used a new razor blade, you cant tell it ever happened as it still looks factory. good lighting and a steady hand is a plus too.

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