Excellent idea and job! I like to see ideas turn into facts.
Glad my '73 hood has it already built-in.

I fabbed a CAI for my '94 Vette that uses a 6"x15" pleated filter. It draws air from in front of the radiator and condenser, from the bottom via the airdam, either/or both, the original and/or CAI together. A year and no trash build-up.
I need to disassemble it and make drawings for anyone that would want/need it for their C4. Cost was little to nothing.

 

Mind? I would be honored. Good luck and send some pictures.

 

Nice job. I may have to think about something like that for mine when I do my 383 next year.

 

Great idea. I made one out of sheet metal, but yours looks much better.

 

Isn't it interesting what develops when the other half wants us out of their hair for a while? That turned out real nice, Clint.

Couple questions: is there enough circumference for a 14" dia element to fit without affecting airflow against the upright wall, front (of car) and sides?

Also, I'm guessing the cardboard is the "core" with the fiberglass covering upper & lower surfaces? The carb base is simply molded in now and remains fixed to cardboard/'glass?

I like it and one day next spring, give credit where credit due if I can replicate.

 

Really cool idea!!!

 

The 14” air filter and flow through lid I ordered just arrived. There is not a lot of extra room around the sides, I looked for a 12” base and lid but did not find one. I figure most of the air will flow through the top and there is about the same amount of room between the sides and the filter as there was with the old school air filter boxes. Remember the ones with the snorkels?



[QUOTE=Dustup7T2;1572303002]

Also, I'm guessing the cardboard is the "core" with the fiberglass covering upper & lower surfaces?

Exactly!!

The cardboard is the core and the glass laminates are the skins of the sandwich structure. It is surprisingly strong, stiff and light. Commercial and military aircraft have lots of sandwich structure in their designs including the sandwich floor panels we walk on. An illustration of the sandwich principle:






Yes, I first bonded it to the cardboard with 3M weatherstrip adhesive, which was probably not necessary but I did not want it moving around. I cut a hole in a continuous layer of glass fabric, fit it over the base and applied resin. I used extra resin around the edge of the base to fill in the air pockets.

I received a few PMs asking for more detail, this may help:

If you need to cover a hole or build a structure, I would cut a piece of card board or poster board the correct size and glass over it. I like the woven cloth better than the chopped matt. I used 1 layer on the top, bottom and sides and an extra layer on the inside corner. Cut the dry cloth, use large pieces if possibe, not strips like paper mache', to cover the card board or what ever you are glassing and then add the resin. I like to use plastic mixing cups to mix the resin and hardener and a small brush to apply the resin. A squeegee works well too if you have a flat area. Don’t mix too much at a time. You can apply in stages. Keep plenty of acetone around to clean your hands and tools.

I used a small rectangular power sander with 80 grit paper to rough sand after cure, then filled the surface with glazing putty and finish sanded by hand with 120 grit.

Fiberglass and resin can be messy and it is a bit of an art form. Take your time and you will be successful.

Good luck,

Clint

 

Very nice, I've been thinking about sheetmetal but this looks much better lighter and easier.
Great job

 

Not completely satisfied with the air cleaner options for the CAI. I decided to fabricate a custom cover to fit on an oval K & N filter.

The 284 style (twill) carbon fabric is available from
http://www.fibreglast.com/showproduc...+Tapes-15.html

You need to start with a smooth surface as the laminate will pick up the finish of the mold. I scored a mirror from Wal-Mart for $8.00 and took off the frame.

First wax (any car wax will work) the glass surface so the laminate will release. Apply the resin to the glass followed by the dry fabric and squeegee the resin through the fabric.

After cure you have one good face skin. Repeat process for second side. At this point you can trim the laminate to shape with tin shears. I cut the lower skin about 3/8 smaller, around the perimeter, than the top skin. Then use resin to bond the upper and lower skin to cardboard cut to the correct shape to add stiffness. Add weight as the resin dries. Fill the edge of the panel with black sealant, the top skin hangs over about 3/8 “so you can’t see the sides. Drill hole for the air cleaner nut and enlarge as required by sanding or use a Dremel tool with an abrasive bit.

All done! You can use this method to make a carbon laminate for any purpose, gauge mounting etc.

Steps:

Making laminate.



Laminate and cardboard after trim



Skins being bonded to carboard. Oil bottles are for the weight.



Round top finished


Oval K & N filter



Oval top finished

 

Great job
What distributor is under there? HEI?
I wonder if the cardboard core sheet can be glued /attached to the bottom of the hood, so that most of the air box lifts with the hood ala L-88, or like the '73 cold air units that leave the air cleaner on the carb?
I have a high rise hood laying around. This may be something I will copy. Cold air is good air. All of the Camaro road racers used cold air from the bottom of the windsheild until the Gen IV came out. The windshield was laid back too close to horizontal and didn't creat the high pressure needed.
Bee Jay

 

Hey Bee Jay,

The distributor is an MSD Pro billet with a 6A box. You can see the box in the windshield wiper well.

I’m sure you could figure out a way to mount the CAI to the hood. I wanted to be able to take off the CAI and replace with a chrome air cleaner for car shows but anything is possible with cardboard, fiberglass and/ or carbon cloth, resin and a little patience and creativity!

Good luck! Send some pictures of your project.

Clint

 

I have the cowl induction hood. I got this idea from a fellow forum member. I can't use it anymore because of my super tall single plane.

 

sweet

 

Very Sweet.
George, you need to ship that to me since you forgot my Christmas present. Did you get the 1/2" Craftsman 19.2 volt Cordless impact wrench I sent you?
Bee Jay

 

I'd be happy to buy it from you. Ron

[QUOTE=gkull;1572695131]I have the cowl induction hood. I got this idea from a fellow forum member. I can't use it anymore because of my super tall single plane.

 

Wow, I like that!

I'd like to see a complete set-up with the carbon fabric! The complete CAI and cover!

Is the base of the CAI 100% flat?

Then you could definitely use the carbon fibre/mirror to get the desired finish on the top face. I would still want the outside painted as you did. Just wondering; how you would get the same finish on the inside of the side walls (cut a piece of plexi heat and bend to desired shape), and then you could just glass the outside areas as you already did. Run a bead of black sealant or epoxy on the inside where the sides meet the base; and you're done! Might try a radius cut on the rear upper corners of the sides to have uninterrupted seal. OK, now...

Damn it! Another project!


Thanks, Good job!!

 

Wow, that is awesome! What is it they say about "great minds think alike"

Also, "more than one way to skin a cat"

 

If you wanted to get fancy and/ or go into production, you could either use a female, concave, mold for a smooth outer surface or a male mold, (plug) for a smooth inner surface. There are lots of tooling materials you can use but some are quite expensive. Finish makes all the difference. Then lay up the carbon saturated with resin and apply vacuum.

If you really want to get fancy, or build an Formula 1 car, use prepreg and an autoclave like the big boys.

Lvrpool32 came up with the idea of using a vacuum sealable clothing bag from Bed Bath and Beyond and a shop vac for vacuum, curing inside a homemade oven.

 

yup..simple and effective. Use a hair dryer as a heat source. You dont want it to get too hot, too quickly. I just use a regular hair dryer on medium setting for 15 minutes or so and its cured (as opposed to 4 - 6 hours air drying)

 

All these guys are building their own. I'll bet u could sell a good carbon fiber CIA for $300 a pop. Yep, anything u can just bolt on for hp will sell easy.
When vendors sell an air flow divider air foil for a throttle body at $70 each ya know there's a market here. At least it would be nice to sell to sell'm to your friends here on the forum and make it worth your while.

Thx for sharing everyone,
cardo0