R.J. SEESE DISCLAIMER
I do not have the credentials to offer automotive advice. The modification experiences that follow, and any I might offer on
this web site in the future, explain how I chose to approach a modification
I wanted to make to my personal car. I am not suggesting that anyone else make this modification to his
or her vehicle. In the event
anyone chooses to accept the responsibility of initiating a similar vehicle
modification, they should do so with the understanding it could result in
undesired damage to their vehicle and could void the warrantee provided by
the vehicle manufacturer. In
addition, I wish to point out that undertaking any vehicle modification without
proper knowledge, experience, tools, and safety equipment can result in personal
injury.
HOOD SCOOP AND
HOOD STRIPE
By Robert J. Seese
APPLICATION: My car is a 1996 V-6. This hood scoop is designed to
fit a 1999 up Mustang. I found the scoop fits the curve of the 1996
hood perfectly, but the scoop grill insert and fastening system required
modification.
TOOLS REQUIRED: Basic mechanical tools plus a Dremel power tool to
install the scoop. For the stripe, a tape measure, scissors, Xacto type
knife, spray bottle, rubber squeegee, and masking tape.
TIME REQUIRED: Allow a full day. This modification has many individual
operations and requires a large dose of time and patience.
COST OF THIS PROJECT: The scoop is a Ford factory part I found for a
best price of $97.50. Shipping was $16.50 and you should plan another
$12.00 or so for fasteners and a trim molding. The striping material will
cost in the area of $20, so you are looking at something close to $150 for
everything.
WHERE TO GET THE PARTS: I purchased the hood scoop from Gene Evans Ford
in Atlanta. To order from Gene Evans phone 1-800-992-9801 or go through
their web site at
www.getracing.com. I ordered by phone. The service was great and
delivery took only a couple days.
WHY MAKE THIS MODIFICATION?
Strictly for looks. For my money, this is the best looking modification I
have made to my 3.8 so far.
WHAT I ACCOMPLISHED:
I really like this hood scoop and stripe treatment. It makes my car look
very unique.
PHOTOS:
>
1. The underside of the hood scoop with the grill removed. Note that the
grill is a honeycomb design, which coincidentally matches the 1996 Mustang
grill perfectly.

2. The upper side of the scoop with the finish protected against possible
installation damage.

3. Remove this guide pin. No sense drilling a big hole in your hood when
it is not necessary.

4. The scoop being fitted to the hood.

5. Cutting the scoop grill to the proper angle and size.

6. The scoop grill trimmed to size and the rubber molding used to finish
off the cut.

7. The underside of the scoop with the factory mounting bolts in place.

8. The factory fasteners are too short for the '96 hood. This is the
hardware I purchased to create a new mounting system.

9. A close-up of the mount I fabricated slipped in place on one of the
scoop mounting tabs. To achieve a proper fit, I later had to reverse all
the slip nuts so that the turned down (up in the photo) portion visible
here was on the top of the scoop mounting tab rather than the bottom.

10. My final mounting system in place.

11. The hood pad.

12. The pad has a ground cable. I learned why when I started to drill.

13. Using a template, I marked and drilled the holes. That was when I
learned the hood on my car is - FIBERGLASS!

14. The underside of the hood with the holes drilled. You have to be sure
that you locate the hood scoop far enough forward to miss the framework.

15. The hood scoop installed.

16. While I had the liner off I painted the horse silver. The paint bled
around the edges, but it still looks good.

17. The hood scoop looks great, but I had mixed emotions about the black
scoop mounted on a different color hood.

18. Yet, I like it black because most the muscle car scoops including
those on Mustangs were black.

19. Still, it still needs something...

20. Wait, I know! Some black striping to carry the black color of the
scoop down the hood.

21. These are the supplies you will need to install a stripe on your
car.

22. I started by drawing out some possible designs.

23. I laid out a first design and didn't like it.
 24. Back to the drawing board for a single stripe design.

25. This one I like.

26. Some trimming is required to achieve a proper fit where the stripe
meets the grill of the scoop.

27. Cutting the concave curve necessary to fit against the grill of the
scoop.

28. Leave at least a couple inches of extra length to wrap under the
hood.

29. The wide center stripe squeegeed into place.

30. The side stripes squeegeed into place.

31. The excess material is trimmed and folded under the hood.

32. The finished job after it dried and was polished.

33. Another view of the finished job.
HOW I COMPLETED THE MODIFICATION:
This is not a job for the faint at heart. Read carefully and proceed only
if you are confident in your ability. On the other hand, don't be scared
off. It just takes time and patience.
The photos pretty much explain the procedure. The scoop is a very
flexible plastic material, not fiberglass. It is available as a Ford
factory part for prices of just under $100 finished in various production
run colors. Since I was installing the scoop on a 1996 car, I chose black
thinking that it would be the only color I might not want to repaint (my
car is Pacific Green).
The scoop came wrapped in a protective plastic material. I cut that
material to fit the upper portion of the scoop and taped it in place to
protect the very slick black finish during the installation process.
The honeycomb grill and the rear of the scoop have protruding mounting
guide pins molded in. I used a Dremel power tool fitted with a cutting
wheel to remove the pin on the scoop (don't forget to wear safety
goggles). The one on the grill was removed in the process of shaping it
to fit the convex curve of a 1996 hood when it is designed to fit the
concave curve of a 1999 up hood. The scoop itself fits the 1996 hood
perfectly.
Let's talk about the grill. I decided that it had to be removed from
the scoop to be shaped. The folks at Ford clearly installed this grill to
remain in place at warp speeds. It is a snap fit that I finally overcame,
but I am still not sure how. Reinstalling it was a little easier, but not
much. You may elect to shape the grill without removing it and I think
that could be done, but only with increased danger of damaging the finish
on the scoop.
The next thing I did was create an exact pattern of the hood scoop by
tracing around it on a piece of thin poster board. I then turned the
scoop upside down and marked holes for the preinstalled factory
fasteners. A note of caution here - the front two fasteners are mounted
to the scoop on tabs canted to fit the center indentation on the 1999 up
hood and must flex flat during installation on an earlier hood (see photo
10). If you do not hold each tab down even with the base of the scoop
while creating your pattern, your mark for those holes will be off a
half-inch or so.
Once I completed the pattern, I drew a line down its exact center. I
then measured from the top of the hood to where I wanted the hood scoop to
mount. Be sure that is a point at least one inch forward of the back
brace of the hood frame (see photo 14). Don't worry about the underside
center brace because there are no center mounting holes required.
Remove the silencing panel on the underside of the hood. The retaining
clips pry out and if you are gentle in the process will be reusable.
Don't forget to remove the ground cable at the right (from the driver's
seat and left as you will be looking at it) corner of the hood. Ground
cable? Why? We are about to find out.
Lay the pattern on the hood and align it to the precise center of the
hood. This will take some measuring and items such as a cloth tape
measure and a T-square are a big help. Tape the pattern in place and
check all the measurements. Also, be sure your holes are going to miss
all the underhood bracing.
Now, center punch the holes for drilling. Wait, the center punch is
just bouncing back with no indentation. Strange... Well, let's try
drilling a hole. Man, this is the softest metal I have ever drilled
through. Wait, this ain't metal, its FIBERGLASS. I have a fiberglass
hood. O'boy, I'll bet the factory screwed up and gave me the light-weight
racing version of the V-6. On the other hand, all Mustang hoods may be
fiberglass. I really don't know, but I was shocked to find my hood was
not metal. Well, it does explain the need for the ground cable.
Ok, the holes are drilled. The next thing is to get the grill of the
scoop shaped to fit the hood. Do this by placing the scoop in place and
measuring the distance from the top of the scoop opening to the top of the
hood at the centerline and on each side.
Using some of the thin poster board, draw a precisely straight
horizontal line that is at least as long as the hood scoop is wide.
Consider this the top of the hood scoop opening. Draw three lines down
from the straight line based on your measurements from the top of the
scoop opening to the hood. Join the bottom of those lines into a curve
that duplicates the top of the hood. Cut out this pattern and make sure
it fits perfectly against the hood.
Tape the pattern to the grill and use a hacksaw blade to cut off the
excess material. Well, I actually recommend you cut about a sixteenth of
an inch below the line. Shaping it to size after the first fitting is
more work, but safer. I doubt that Ford services this grill as a separate
part. I used a Dremel tool with the grinding wheel attachment to finish
shaping the bottom of the grill, checking the fit many times as I
progressed. When I got close, I finished the job with a file.
The plastic of the scoop grill is very hard to work with. Partly
because it is a honeycomb design, but mostly because it is made of a soft
almost waxy plastic that makes a perfectly smooth cut near impossible.
So, after I was satisfied with the fit, to cover the less than perfect cut
I glued on a piece of trim molding (see photo six). But, I made a
mistake. This molding is about 1/8th of an inch (compressed) wide at the
bottom. When I tried to bolt the hood scoop down the first time, the
thickness of the molding interfered with achieving a flush fit in front.
So, off with the scoop, remove the grill a second time, remove the molding
and cut it down further. Don't make that same mistake.
We are now ready to talk about the factory scoop fastening system. It
is too short for the 1966 Hood. The threaded rods do not protrude far
enough through the hood to properly install a fender type washer and nut
combination. You need the washer to spread the stress, especially
bolting against fiberglass. Something longer was needed, so I headed for
the local hardware. Not a "home center", but a good old-fashioned
neighborhood hardware where there are real people with ideas to help you
solve a problem.
The solution is shown in photo eight. I purchased these slip-nuts and
bolts and installed them on the scoop mounting tabs just the way they are
intended to be used (flat side up and curved edge down). This did not
work because the curve on the lower surface held the scoop just slightly
away from the surface of the hood. I flipped the slip-nuts upside down,
screwed the bolts in backwards and reinstalled them. The flat side was
now down and the problem solved.
Before you start putting the scoop in place on the hood, tape the ends
of each bolt so that if you accidentally run one across the hood no damage
will be done. Remember to reach under the side of the scoop and apply
some pressure to the bottom of each of the front fasteners. If you
drilled properly, these bolts will match the holes only when the tab they
are on is pushed flush with the bottom of the scoop.
Once the scoop is in place, fasten it down with masking tape (the easy
release blue type is safest). A generous strip across the scoop from top
to bottom and another side to side should do it because the two front
canted fasteners tend to hold the scoop even without tape. Because you do
not want the scoop to fall off when you raise the hood and assuming you
have no one to hold the scoop in place, do this: hold a fender washer and
nut combination in one hand and lift the hood just far enough to reach
under and install the first washer and bolt finger tight. You can then
raise the hood fully, install the hood prop and thread a washer and nut on
each of the fastening bolts. Tighten them finger tight, then use a socket
to tighten them lightly (snug plus a half turn) in an X-pattern. The hood
silencer panel can now be reinstalled. Don't forget the ground strap.
Except, if you intend to install a stripe or other tape treatment, do
not tighten the scoop or reinstall the hood silencer panel. You will see
why later.
Over the next couple days, I decided I not only liked the scoop black,
I wanted it black. I could envision the black scoop on any color Mustang
and I still liked it black. Still, something was needed to give it a more
finished "factory" look. I decided a gloss black decal design might do
the trick.
I took a picture of the front of the car (photo number 18) and blew it
up on a copy machine. I then traced it with a black marking pen and
started drawing out some possible decal designs. I then did some
measuring on the hood and decided on a two racing stripe design with each
stripe being 9-inches wide. A local sign shop cut the gloss black
material they use to letter trucks into two panels 9-inches wide and
30-inches long. Since the material is 24-inches wide, this left a section
six inches wide and 30-inches long. I had them cut that into quarter inch
stripes.
I cut the 9-inch panels apart leaving a border of the backing material
and taped both to the hood. I didn't like it. Next, I tried a centered
single 9-inch stripe and that, to my eye at least, looked far better.
In fitting the stripe I realized the grill of the hood scoop is
slightly curved, necessitating that there be a slight concave cut to the
top of the stripe. The other and better option would be to slip the vinyl
material under the grill, but this has to be done prior to tightening the
scoop into place. Unfortunately, I did not plan that far ahead. My
recommendation would be that the stripe be applied before the scoop is
tightened down. But, not wanting to go through the process of removing
the silencing panel and loosening the scoop, I trimmed the top of vinyl
stripe to fit the grill. I then trimmed the excess on the bottom of the
stripe leaving two inches beyond the front of the hood. This overhang
will be tucked under the leading edge of the hood.
A word here about cutting vinyl on the car. Don't do it! If you watch
a professional, you will see that use a very sharp fine blade and trim the
vinyl in place on the car. Even with a light hand, this will mark at
least the clear-coat portion of the paint. If you plan to leave the
stripe in place forever, it probably does not matter. But, if you want to
retain the option of removing it in the future, trim the vinyl off the car
(see photo 27) so there are no marks in the paint.
There is no special preparation of the hood paint required prior to
striping, except that the surface must of course be completely clean. You
do not have to prep the area by removing the polish or any thing like
that.
Installing vinyl decal materials on a car in any format is not all that
difficult as long as you use liberal amounts of the "magic formula" - a
dishwasher soap and water combination (about five drops to the average
spray bottle). It is also important not to drive the car for at least
several hours or attempt to clean off the mess left by the solution for at
least eight hours.
You do not want to try to install vinyl material on a surface that is
hot from the sun or at a temperature less than 65-degrees Fahrenheit.
You also do not want a windy day that will blow your material around while
you are trying to lay it in place. The best place to install vinyl is in
a well-lighted garage.
Prior to starting your vinyl installation, use small pieces of masking
tape with a line drawn down the center to designate the precise center of
the hood scoop grill and the hood. In fact, it is not a bad idea to go
even further with these tape reference marks by placing several per side
4½-inches from center left and right to mark the sides of the stripe. In
addition, placing a piece of tape on the top and bottom of the vinyl
stripe to indicate its centerline is helpful.
Now comes the fun part. Working on a large flat surface (I used the
kitchen counter at a time my wife was not home), carefully separate the
9-inch stripe from the backing material, stopping about every six inches
to spray the back (adhesive side) of the stripe liberally with the
soap/water solution. If you do not do this the stripe will fold back on
itself and stick together. No, you will not be able to pull it apart.
Holding the dripping wet stripe in one hand, spray the area where it is
to be installed liberally with the soap/water solution. Yes, it is making
a mess of your nicely polished hood and yes it is dripping down all over
the bumper, etc. You just have to worry about that later.
Now, lay the stripe on the hood and unfold it. Obviously, you want the
adhesive side down. The stripe will at this point float easily on top of
the water/soap solution. That will only last a couple minutes though, so
work quickly but carefully to center the stripe. If you sense the vinyl
becoming difficult to move, lift the material at various points and spray
more solution under it.
Lineup the top and bottom center line marks on the stripe with those on
the scoop and hood. Use a piece of string if you do not trust your eye.
Once you are certain the stripe is properly positioned, remove the tape
centerline markers and place the protective material you removed from the
underside of the stripe (gloss side down) on top of the stripe. Use a
hard rubber squeegee (a credit card, body filler applicators, etc. work
but I worry that they will scratch) to lightly smooth the stripe into
place.
Discard the protective material and spray the top of the stripe with
the soap/water solution. This will protect it from scratching and make
the smoothing down process easier. Starting at the top center of the
stripe, smooth first from center to one edge and then from center to the
other edge, continuing down the entire length of the stripe. Be sure to
remove all the air bubbles. When you get to the front, smooth to the
curve of the hood. The couple inches of extra material will distort
slightly, that is not a problem. Do not try to fold that excess material
under the hood yet. That will come later.
Look at the stripe with a very critical eye. Be sure it is as perfect
as you can get it and then leave the whole thing alone for at least a
couple hours. Do not move the car into the sun during this drying process
to try and hurry things along. Yes, professionals do continue with the
design while the main decal panel is still drying in place. We are not
professionals.
After the couple hour wait, you can complete the design by installing
the side stripe or stripes if you want more than one. The process is the
same, but the thin side stripes are a little more difficult to work with.
A pro will not use solution on these thin stripes, but I did. I then used
a tape measure to adjust the stripe a precisely even distance from the
main stripe. When I had both sides in place and smoothed down, I walked
away from the car for another couple hours.
After those last couple hours have passed and the striping has adhered,
you will find the excess material at the front of the hood has dried and
the adhesion has returned. You will also find that the distortion created
by mating the wide stripe to the front curve of the hood has caused the
excess material to develop waves. With some sharp scissors, make a cut up
the excess material at intervals of about one inch. Starting in the
center, fold that excess material under the hood and press it down, then
fold the ends of the thin stripes under the hood. Resist the temptation
to polish every thing up and let it dry over night.
The next day, wax the hood treating the stripes as you would any fine
paint finish and the job is done. Wait, you found a bubble of air right
in the center of the large stripe. Use a fine pointed instrument to
lightly prick the vinyl material in the center of the bubble. Spray the
area with solution and smooth the bubble from all sides towards the small
center pinpoint opening. This will force the air out.
You now have a black stripe treatment that carries your eye to a black
hood scoop clearly intended to be a different color to emphasize the fact
this is not your run of the mill Mustang.
|