Sourmug's Decklid Vent Build ** 56K Warning!!** (Page 9/69)
Sourmug MAR 28, 01:40 AM
Once the flange was cut to size I flipped the hood over to see how the scoop fits compared to the trunk seal lip. I also want to see where the openings could be cut for air flow:


Once the flange out line and the approximate inside flange edge were marked I grabbed some paper to make a template:

The paper was taped down and I used a lumber crayon to trace the curve of the trunk seal lip:

I used the flange of the scoop to estimate the positions of the curved lines forming the intended hood opening. These lines ate approximately 1" inside the outside edge of the scoop and should be reasonably close to the inside edge of the flange.
The hood was then flipped back over and the front egde of the scoop marked and the template was taped for a trial fit.


Edit : WOOT! I own page three!

[This message has been edited by Sourmug (edited 05-08-2007).]

Sourmug MAR 28, 01:50 AM
Rats, even after trimming, there is still some overlap of the flange with the front/back lines on the hood:



I would like to remain reasonably close to the original contours of the hood. My concern is that when the scoop is attached and glassed in there will be a bulge at this overlap. So, perhaps I should remove a strip down the center of the scoop so that the two halves are close together. This would move the flange further away from the lines and make smoothing the edges much easier.

Any thoughts?

Nolan

[This message has been edited by Sourmug (edited 05-08-2007).]

Sourmug MAR 28, 02:56 AM
I thought about moving the two halves right together so that there would be no gap. pumpkincarriage was kind enough to photoshop this picture:


But I don't think that I like how it looks.

I decided to cut out an 1 1/2" strip out of the center and modify the template so that the holes in the hood are closer together as well:


I marked out the strip and cut the scoop into two pieces. After the cutting is complete I find some gaps between the gelcoat and the fiberglass. Arrgg! I took a ball-peen hammer and started tapping the raised surfaces and this is what I find... Air bubbles:





Shades of the rear deck lid. Is there some reason that people can't get the fiberglass to lay into the mold properly? Or is it just a crappy hand laid job? Man it's frustrating but at least it's fixable.

[This message has been edited by Sourmug (edited 05-08-2007).]

Fiero1Fan MAR 28, 03:01 AM
Remove the center space all together. Leaving either one larger opening or you still have both openings but only a arm coming down to the hood that would look good and support the middle of the scoop.
Like Amber did here.

but then shorten it a bit too.


edit: oops, too late.

[This message has been edited by Fiero1Fan (edited 03-28-2006).]

Sourmug MAR 28, 03:08 AM
Timo:

I though of doing that but it looses some of it's appeal to me. I like the effect of the two separate scoops rather than the single look. I dunno, I guess it's just a personal taste thing. Out of curiosity, why do you think it should be shortened? I assume you mean front to back?

Nolan

[This message has been edited by Sourmug (edited 03-28-2006).]

PaulJK MAR 28, 03:09 AM
nice .... verrrrrry nice ....
Fiero1Fan MAR 28, 03:14 AM
Yes. I think it might look better if the whole piece was shorter. Ignore that it will over hang at the moment and just move the pieces down about 10" and see how that looks. I have photoshop but can't get it to work like I want it to.
Sourmug MAR 28, 03:10 PM
Timo:

I will have a look at it when I get home from work tonight.

Edit: I had a look at what you are saying. I agree that moving the scoop forward would look good as well. Part of what I like about this scoop is that it is fairly long and places the openings about midway on the hood rather than the fairly common front location of most scoops or the rear of the hood openings that are less frequent. I think it looks some what unique or at least different than most. I appreciate your suggestion but I think that I will keep the length, again it's just a personal preference thing. Besides, I had already cut the hood openings but it could still have been made to work.

Thanks
Nolan

[This message has been edited by Sourmug (edited 03-28-2006).]

Sourmug MAR 28, 08:55 PM
I did decide to cut 1 1/2" out between the two halves of the scoop and placing the cut pieces in the hood I traced the overall outline and then using the template I traced the hood openings as well:

I then drilled two holes, one in each of the upper corners just to see how my marks on the top of the hood correspond with the underside. I figured that it's easier to patch two small drill holes than two large holes in case I screwed up. I checked the underside and sure enough the template had been placed too far forward. Darn rubber tape measures
I then re-marked the openings using the correct distance:

And drilled hole in all the corners so that the jigsaw blade could be positioned for cutting. I wasn't nearly as nervous cutting the hood as I was cutting the deck lid. It doesn't seem to be as big of a deal.
Here are the two openings:

[This message has been edited by Sourmug (edited 05-08-2007).]

Sourmug MAR 28, 09:01 PM
[booktext]I trhen taped the scoop onto the hood so that I could checkl the fit from underneath:

Here's how if looks from the back looking forward:

And this is from the front:

And here is a close-up of the gap between the top of the hood and the underside of the scoop:


There is about a 3/4" high gap which gets taller as it moves towards the rear. I am going to cut the top further to create a flap that will be bent down to meet the bottom sheet of the hood. This will give the leading edge an airfoil shape which should assist in air flow.
[/boolktext]
Nolan

[This message has been edited by Sourmug (edited 05-08-2007).]