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Old 05-23-2015, 10:53 AM   #1
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GT hood scoop for venting hot air

I have never done any body mods on Abigail, the '04 rag top GT. I was looking into what I can do the reduce the engine bay temperature. I was looking at louvers and an AM hood that is supposed to do this.

I occurred to me the scoop might help. I was considering turning 180 degrees and cutting a hole under it.

This seems like it might to a couple of things: allow hot air under pressure to escape out the low pressure area directly behind the scoop, and to look interesting and not fake.

I was also thinking about leaving it facing forward. This simplifies the job but it seems more likely to get rain and dirt in it.

I would like to hear what people have done and reactions to what I might do.

Thanks.
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Old 05-23-2015, 10:55 AM   #2
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Find a cowl hood for it
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Old 05-23-2015, 11:33 AM   #3
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Some guys have tried removing the honeycomb and cutting a hole in the hood to allow fresh air to enter... A lot of those guys have also had their hood scoops blow off on the freeway!
The honeycomb is what anchors the front of the hood scoop to the hood.
As far as turning the scoop around? There will be a big gap in the front recess on the hood where the honeycomb was previously filling it in.

A quality aftermarket hood is the way to go if you want a functional hood scoop.
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Old 05-23-2015, 05:34 PM   #4
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I was interested in venting engine heat. I have a CAI and am going to wrap the exhaust, the floor pan gets hot, I thought the hood scoop might do it but you are correct. There is no way to get this to work with the stock hood and scoop. Thanks guys.
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Old 05-23-2015, 05:58 PM   #5
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Quote:
Originally Posted by 04RagTopGT View Post
I was interested in venting engine heat. I have a CAI and am going to wrap the exhaust, the floor pan gets hot, I thought the hood scoop might do it but you are correct. There is no way to get this to work with the stock hood and scoop. Thanks guys.
Use a cowl hood
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Old 05-23-2015, 06:03 PM   #6
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As soon as I can convince the Boss....
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Old 05-23-2015, 06:59 PM   #7
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As soon as I can convince the Boss....
We all know how that goes!
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Old 05-24-2015, 07:28 PM   #8
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Good luck
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Old 05-24-2015, 07:36 PM   #9
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You can drill holes through the honeycomb and then cut the hole in the hood. Just don't remove the honeycomb unless you want to lose the scoop.


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Old 05-24-2015, 11:05 PM   #10
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What, may I ask, makes you think your underhood temps are too high? Do you have an aftermarket water temp gauge to actually tell you how hot the engine is getting? That should be your first modification IMO.


As far as lowering temps. Don't **** around with the honeycomb on the stock hood, that'll just end badly. Get an aftermarket cowl or heat extractor hood and install it. The stock airbox IS A CAI, you will not lower temps anymore than they already are with an aftermarket one especially if you install a metal one and ESPECIALLY if you put in one that does not pull from the fenderwell.


As far as running a 180... no need. Stock t-stat.


Like I said, get an aftermarket water temp gauge before you get all worked up about underhood temps. Unless there is something wrong with your cooling system, you should not need to be worrying about overheating. Even in 100 degrees and in traffic.
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Old 05-24-2015, 11:28 PM   #11
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Cervinis came out with a new hood that looks similar to the stock hood but the scoop is functional and it has 13/14 style heat extractors.


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Old 05-24-2015, 11:36 PM   #12
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Cervinis came out with a new hood that looks similar to the stock hood but the scoop is functional and it has 13/14 style heat extractors.


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I thought that was still in testing or whatever.
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Old 05-26-2015, 04:46 AM   #13
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The system seems to be fine. The foot wells are quite warm probably due to the cats. There are 2 things I thought might help this. The first is wrapping the pipes to get heat out the tailpipe. This won't change the temp of the cat but it should help shave a few degrees off everything else in the area that is dumping heat into the floor pan. The second is I think reducing the heat under the hood could increase the lifespan of the plastic and wiring components.

At this point it is clear messing with the "intake" on the hood will likely not end well so that is not going to happen.

The louvers seem like they might get me the result I am looking for though. I saw some things that might work at HoodLouvers.com.
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Old 05-26-2015, 04:54 AM   #14
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I cut a hole in my hood and never flew off, but I wouldn't do it. If you want it cooler in the bay buy a cowl hood so heat can escape the bay. The hood scoops were originally for carbs intakes to catch air and flow into the engine. When you cut a hole in our scoops just to catch air it doesn't do much except maybe keep the motor cooler by a few degrees which isn't noticeable plus it is very likely for it to fly off on a freeway. The hood scoop is for looks not functional if you want a functional hood scoop buy the shaker kit or cowl hood. Cutting holes in the stock hood is gonna look like crap and ghetto as heck. Do it right the first time. Plus water and dirt gets in your engine bay even with filters over the holes. It's just a no go all the way.


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Old 05-26-2015, 05:32 AM   #15
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I have to admit to being more than a little leery about cutting holes in my baby's hood. The Terminator hood (Mustang Heat Extractor Style Hood at .com (99-04 All) - Free Shipping) looks like a good option as does the cowl. It will mean more saving and less instant gratification. This forum is good for my character
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