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A bit different hood scoop

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Old Apr 17, 2011 | 05:58 PM
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A bit different hood scoop

Dont want to be the exact same as everyone else so im gonna make my own. And yes, i do plan to make this functional kind of like a mopar "shaker" scoop (except the scoop will be bolted to the hood) but with a plastic pipe to the air box. I started off with a piece of hard craft foam 2"X12"x18".


I used an orbital sander with 80 grit to get the rough shape.



Looks like most other scoops now, so i tried a new trick to give it a bit more character. Took a piece of 3/4" pvc and wrapped it with sticky back sandpaper.


Then used that to sand a groove down the middle of the scoop.



Then i hand sanded the sharp lines on the channel i grooved.


That is as far as i got with the shaping of it today. now i need to figure out what to coat the foam with to prevent the fiberglass resin from deteriorating it on the first coat or two. Im leaning towards some sort of wax or a similar product so i can re-use this mold. If anyone has any suggestions feel free to speak up please. By the way, what's the vote for which position on the hood?

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Old Apr 17, 2011 | 06:07 PM
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center for sure dont make it tacky
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Old Apr 17, 2011 | 06:10 PM
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I'd personally center mount it and angle the sides a little to give it more blend with the factory bodylines in the hood.
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Old Apr 17, 2011 | 06:14 PM
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Originally Posted by wd21_sr5
angle the sides a little
i was thinking about that too.
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Old Apr 17, 2011 | 06:18 PM
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What are you going to do about water getting into your intake?
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Old Apr 17, 2011 | 06:29 PM
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so cal doesnt see to much rain and i dont bomb the puddles so that concern is little. after i seal the intake box i do plan on drilling two 1/8" holes (one in each rear corner) to allow any water to escape that may get in. after that im sure it will take alot of mother nature to build up a few inches of water in the box to reach the intake tube.
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Old Apr 22, 2011 | 05:24 PM
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The center looks way better, so any more progress?
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Old Apr 23, 2011 | 05:03 PM
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progress will resume this monday. got the resin today but have my 4 year old till sunday night so ill dodge the fun of the kid getting into the mess with me. that stuff does'nt come off the skin to easily and i dont want to see her face go when i try to remove it from her skin.
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Old Apr 24, 2011 | 07:11 AM
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nice, I have been thinking about fabbing up a scoop also. tierd of looking at the intake plentum sticking out of my hood.
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Old Apr 25, 2011 | 05:06 PM
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got a little progress today. reshaped the sides a bit to go with the hood lines better.


and then started laying glass. gonna be a slow process since the weather is cool right now, so ill do a layer or two per day to alloww sufficient drying times.

updates will continue.
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Old Apr 25, 2011 | 05:22 PM
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What did you end up coating the foam with to prevent the fiberglass from sticking?
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Old Apr 25, 2011 | 05:34 PM
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i tried syran wrap and that was mission failure. didnt have any thing else on hand except petroleum jelly, to which im gonna dodge being the first person to make that mistake! so i just went for it on the foam and its actually not melting "too" much from what i can tell so far. if worse comes to worse ill use fiberglass bondo to get things smooth.
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Old Apr 25, 2011 | 06:57 PM
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FYI for future use wax the mold, that's what we did in the fiberglas shop i worked at.
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Old Apr 26, 2011 | 07:28 AM
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looking good, i need to use fiberglass more often
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Old Apr 26, 2011 | 06:02 PM
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Originally Posted by worshipmentor
FYI for future use wax the mold, that's what we did in the fiberglas shop i worked at.
your advice WILL be used for the next thing i make. the mold did deform just enough to make it wavy so im gonna go get some glass bondo to smooth it up and drop a few more sheets on to finish it out. and thanks for the input people!
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Old Apr 26, 2011 | 06:04 PM
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Originally Posted by Outsane
looking good, i need to use fiberglass more often
its good stuff but takes patience. lol
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Old Apr 27, 2011 | 04:29 PM
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so heres the wavy outcome.


and then i got happy with the fiberglass bondo.
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Old Apr 28, 2011 | 07:18 AM
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progress!

looks like your going to be sanding for awhile
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Old Apr 28, 2011 | 09:06 AM
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The sanding might not be that bad with the right power tool, I'm thinking a hand held belt sander would make short work of that (don't forget your breathing mask!)

I thought you were still making a mold - like where you pull the foam out and then lay the fiberglass for the finished product inside the "negative" you just created.
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Old Apr 28, 2011 | 04:10 PM
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Originally Posted by corax
The sanding might not be that bad with the right power tool, I'm thinking a hand held belt sander would make short work of that (don't forget your breathing mask!)

I thought you were still making a mold - like where you pull the foam out and then lay the fiberglass for the finished product inside the "negative" you just created.
gonna use an orbital sander on it. as far as keeping a mold..... that kinda went out the window when i didnt coat the foam. oh well. easy enough to make another one.
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