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> Front hood scoop
Stonepilot
post Jan 4 2012, 02:07 PM
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Anybody done one of these? Got a picture would love to see what it looks like? Thank you
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SirAndy
post Jan 4 2012, 02:16 PM
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QUOTE(Stonepilot @ Jan 4 2012, 12:07 PM) *
Anybody done one of these? Got a picture would love to see what it looks like? Thank you

Scooping for what exactly? (IMG:style_emoticons/default/confused24.gif)
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Stonepilot
post Jan 4 2012, 02:20 PM
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Air across a radiator
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wingnut86
post Jan 4 2012, 02:21 PM
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Stonepilot,

Are you thinking of just visual with a blocking plate in the hole or is this for oil cooling?

The reason I ask is due to not many going top-scoop mount as it creates flow issues over that streamlined hood of ours (IMG:style_emoticons/default/blink.gif)

Most AX'rs, Racers and Street Demons use a vented lower valance up front or something less visual.

Good luck if you find something and please share it here, as I for one have never seen one...
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SirAndy
post Jan 4 2012, 02:24 PM
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QUOTE(Stonepilot @ Jan 4 2012, 12:20 PM) *
Air across a radiator


The hood is too high for a intake scoop.

Usually, you run the intake though a opening in and behind the bumper (See my avatar).

There are several ways for the air to exit and i do prefer the "out the hood" vent. Neither the "original Porsche way" (out the bottom) as well as the "v8 way" (out the fender wells) appeal to me.
The first adds a lot of hot air under the car, the second adds a lot of hot air onto the front brakes.

Do a search here, there are several cars that have gone the exit out the hood route. It's crucial to have a front facing "lip" on the exit to help with air-flow.

(IMG:style_emoticons/default/popcorn[1].gif)
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SirAndy
post Jan 4 2012, 02:27 PM
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I'm currently venting out the bottom, but that's temporary until i can find the time to fabricate a nice shroud for venting out the hood.

http://www.914world.com/bbs2/index.php?s=&...st&p=893543

(IMG:style_emoticons/default/driving.gif)
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bfrymire
post Jan 4 2012, 06:32 PM
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Look for Britain's build thread on adding a suby powerplant to the 914. He has a hood exit for the radiator using louvers.

-- brett
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JmuRiz
post Jan 4 2012, 07:16 PM
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QUOTE(SirAndy @ Jan 4 2012, 12:27 PM) *

I'm currently venting out the bottom, but that's temporary until i can find the time to fabricate a nice shroud for venting out the hood.

http://www.914world.com/bbs2/index.php?s=&...st&p=893543

(IMG:style_emoticons/default/driving.gif)

Now you're talking...venting out the hood is the best way, as long as you don't mind poising cargo space.

I'm trying to think of a way to do a front cooler w/o taking up much/if any cargo space up front...haven't found one yet though.
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SirAndy
post Jan 4 2012, 07:32 PM
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QUOTE(JmuRiz @ Jan 4 2012, 05:16 PM) *
I'm trying to think of a way to do a front cooler w/o taking up much/if any cargo space up front...haven't found one yet though.

Look at some newer model Porsche's. They use a very steep angle right after the cooler that goes almost straight up.
(IMG:style_emoticons/default/shades.gif)

In my case, i'm going to make the shroud a two piece part so when you open the hood, you still have access to the space behind the shroud. Should be enough for a toolbox and other assorted items.
The spare tire is already mounted in the rear trunk. I'm going to leave it a full-size spare but i'll be going down in rim diameter. Right now my spare is a 7" cookie cutter with a 215 tire. A 5.5" with a tire somewhere around 175 should be plenty for a spare.

(IMG:style_emoticons/default/santa_smiley.gif)
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Stonepilot
post Jan 5 2012, 06:53 AM
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could you raise the hood an inch up near the windshield and build a vent under the hood to take the air coming thru the radiator out over the windsheild. of course the air coming in is under the car. is the air coming off the radiator that hot?
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Andyrew
post Jan 5 2012, 07:35 AM
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What engine will you be running?
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Stonepilot
post Jan 5 2012, 07:51 AM
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Id like an EJ20 but any 6 will do, maybe something new
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rnellums
post Jan 5 2012, 08:22 AM
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QUOTE(Stonepilot @ Jan 5 2012, 07:53 AM) *

could you raise the hood an inch up near the windshield and build a vent under the hood to take the air coming thru the radiator out over the windsheild. of course the air coming in is under the car. is the air coming off the radiator that hot?


The problem there is that the base of the windshield is a high pressure zone. It isnt as high as the front of the car where your inlet will be, but you won't get as much airflow as if you vent to a low pressure area.

When I do my conversion I think I will vent to the wheel wells. I still need to do the calculations, but I think the relative heat coming out of the vents should be far less than the temperature of the brakes under heavy use.
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bulitt
post Jan 5 2012, 09:11 AM
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Some pics-

Ferrari 308, 512bbi used louvered grills-

Attached Image

Shelby Daytona- With lip Andy mentioned.

Attached Image

Ford GT-40

Attached Image

Jag XKE used louvers, Dodge viper also louvers.

Attached Image
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brant
post Jan 5 2012, 09:22 AM
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I've ran a vented hood on my oil cooler for 15 or so years
its all steel and pictured in my street car signature below
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Britain Smith
post Jan 5 2012, 12:55 PM
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Vented Carbon Fiber Louvers...works awesome.

(IMG:http://a3.sphotos.ak.fbcdn.net/hphotos-ak-ash2/181041_1538642912578_1430063084_31131848_4143754_n.jpg)

(IMG:http://a5.sphotos.ak.fbcdn.net/hphotos-ak-ash2/179487_1538642992580_1430063084_31131849_4365397_n.jpg)

-Britain
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SirAndy
post Jan 5 2012, 12:59 PM
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QUOTE(brant @ Jan 5 2012, 07:22 AM) *

I've ran a vented hood on my oil cooler for 15 or so years
its all steel and pictured in my street car signature below

That's exactly what i want to do! (IMG:style_emoticons/default/thumb3d.gif)

Well, not the big hole in the hood, but what you had before that. A shroud going up with louvers on the hood for the exit.

(IMG:style_emoticons/default/driving.gif)
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Stonepilot
post Jan 5 2012, 02:09 PM
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very nice thats what I was talking about. thank you
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Andyrew
post Jan 5 2012, 08:49 PM
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With a small engine like that, you could put a small radiator in the front of the trunk, or in with the body and then exhaust it out the front of the hood like the new porsche's. Then guess what, You still have a front trunk!
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wingnut86
post Jan 5 2012, 09:01 PM
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Go Subie and buy this gents hood!

Group discount? (IMG:style_emoticons/default/beer.gif)
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