Progress pic of my CF NACA duct
 

After I cut the hole, I still have to attach it and bondonto gaps, sand and paint
Attachment 199996

This reminds me....I gotta finish mine too. Too bad mines not carbon.

Looks good. You should have made it bigger.

Yeah I wish I go the 4" one instead of the 3" but it doesn't look as bad in person, it will still flow enough air for the intake I think.
Cspence go work on it so we could all do that meet by apr/may.

hey you didnt let the cutting tool go wild on your paint, nice job. I've done two and both times I've slipped once and it made me a sad panda.

I had to cut the 4" down and make it .5" shorter, it's still larger than your 3" but it was too long and hit the headlight when mounted.

The paint is a little messed up and there's a little section that I cut a little too much, but a little touch up paint, some wet sanding and a new clear coat will make it look nice I hope.

Looks good, where did you pick it up?

I'm pretty sure the NAs had single stage paint (no clear coat) except for the metallic colors. If the rest of your car is single stage then I wouldn't bother clear coating the lid.

I bought it of some dude on CR...
My car was re-painted by the previous owner so I'm not sure if it was CC or not

here's a pic from today, glued it on with PL
Attachment 199935

I've rocked the car without the headlight lid long enough. It definitly would'nt stop me from going on a cruise ;)

Looks great! You did a smooth cutting job on that lid.

He got it off me.
Looks great btw!

You can get em at mckinney corp website for like $40-50 per duct

Well you motivated me. Ran out to lowes and picked up some adhesive and glued mine on....bout time I finished that project anyways, thanks!

Yeah thanks man

Whats the website to buy these ducts?

I think I would have put the lip of the duct on the outside to cover the curvy/not smooth cut. Otherwise it looks pretty good. Larger would be more win.

Filled it with bondo
Attachment 199916
Sanded
Attachment 199916
Taped and ready for paint
Attachment 199918
A coat of primer
Attachment 199919

How did that PL adhesive do for you....I used it on mine last night and today when I was checking on it I noticed that it was basically lifting off my naca duct. After 18 hours of curing I was able peal it all off in one huge sheet. I'm not sure what the problem was...I mean I roughed everything up and cleaned it with acetone prior to application. Maybe its the type of plastic my duct is made out of. O well, I am redoin it right now with epoxy. Yours is comin along good though!

Really? I used that stuff on everything, I basacly did the same as you scuffed it up, acetone and applied.

Got the black on
Attachment 199908

Attachment 199909

Attachment 199910

nice, I just used a sharpie to "paint" mine still have yet to need to retouch it!


http://www.mckinneycorp.com/

oh shit you going to gain 40whp

Wow, pricey. Is there any fiberglass or plastic ones?

:fawk:

And the finish product
Attachment 199907

I need your hood....

Here's a pic of the whole car... new bumper should be here Tuesday and hardtop will be painted red or black in spring
Attachment 199902

not a big fan of the wizard body kits, liking the headlamp lid, but i love those wheels, how much did they cost you?

I bought them last year I can't remember how much they were tho...

18psi I don't know if that was a good or bad comment

Your bumper is hurtin, what are you replacing it with? I vote black for the hardtop. Naca duct came out quite well.

My thoughts exactly!

Im assuming the same one? They dont look that bad. Isnt there supposed to be a piece across the bottom of your bumper?

Same bumper but made out of duraflex which is supossed to be more flexible than fiberglass and it won't break with any little bump I hit

Here's my beauty...:giggle: It looks like hell now, but its going to look decent, I swear!

Attachment 199799

I used JB weld to attach mine and fill the small gaps. +1 on the sharpie touch up too.

Attachment 15658

I'm not sure why you guys aren't using jb weld or gorilla glue?

I used loc-tite marine epoxy...

I used expoxy to secure the flast side to the bottom of the lid, then fiberglassed the fuck out of it.

JB weld is a pathetic excuse for a product.

Naca Duct 3" Single Hole : eBay Motors (item 160404322716 end time Mar-15-10 15:36:23 PDT)

For 18 bucks, could i just use this and paint it body color? Sorry, I'm not balla enough for the CF.

Thats basically the same one I have....only mines black

I don't think so, unless you take your headlight out like cspence did. You need something flat to fit between you headlight and the lid

STOP TALKING ABOUT HIS LINK and TALK ABOUT MINE!

Fuck your link :giggle:

Will add my carbon fiber NACA duct DIY to this thread, hope you don't mind.

Bought for 10 bucks of craigslist.
http://www.t-netzone.net/miata/nacalid/_MG_6190.jpg


Made scratches on the lid where bondo will go onto.
Then taped the duct side where it will bondo to the lid (so I can lift it off later after the bondo). Then taped it onto the lid.
http://www.t-netzone.net/miata/nacalid/_MG_6203.jpg


Taped the opening.
http://www.t-netzone.net/miata/nacalid/_MG_6200.jpg


Side shot of the gap that needs to be filled with bondo.
http://www.t-netzone.net/miata/nacalid/_MG_6201.jpg


Filled the gap with bondo, then took off the duct.
http://www.t-netzone.net/miata/nacalid/_MG_6206.jpg


Wet sanded to a smooth surface.
http://www.t-netzone.net/miata/nacalid/_MG_6207.jpg


Epoxied glue the NACA Duct to the bondo surface. Then can spray painted it with a few coats at a time.
http://www.t-netzone.net/miata/nacalid/_MG_6214.jpg


Wet sanded the paint and then layed 3 layers of clear coat afterward. Then wetsanded again to smooth out bumps. Then compound waxed it to a glossy shine.
http://www.t-netzone.net/miata/nacalid/_MG_6232.jpg


Peeled off the taped section.
http://www.t-netzone.net/miata/nacalid/_MG_6233.jpg

http://www.t-netzone.net/miata/nacalid/_MG_6234.jpg

http://www.t-netzone.net/miata/nacalid/_MG_6241.jpg


Used the small net grill section that came with the bondo for the rear, (bent the piece to a soft corner "S" shape) and used epoxy to hold it to the back of the lid piece.
http://www.t-netzone.net/miata/nacalid/_MG_6244.jpg


Laid down some more glossy wax and "Ready for my close-ups."
http://www.t-netzone.net/miata/nacalid/_MG_6245.jpg

http://www.t-netzone.net/miata/nacalid/_MG_6246.jpg

http://www.t-netzone.net/miata/nacalid/_MG_6248.jpg

Since this is the unofficial "post your NACA ducted headlight lid" thread, here's mine.

- 3" duct
- JB weld as adhesive and filler
- flat-blacked the sides of the duct

It came out just okay. If I were truly baller I'd have done like Pharo_X did and repaint the lid.

https://fbcdn-sphotos-a.akamaihd.net...68746291_n.jpg
https://fbcdn-sphotos-a.akamaihd.net...97619443_n.jpg
https://fbcdn-sphotos-a.akamaihd.net...06552942_n.jpg
https://fbcdn-sphotos-a.akamaihd.net...82278580_n.jpg

Looking back through the thread, most aren't as inboard as mine. Mine's about as far back and as inboard as you can get too, I had to cut the bolt the housing pivots on for clearance..

How are you guys tracing the naca hole onto the lid?

Observe my first pic, I just cut a template from the duct and plopped it onto the lid.

I was lookin at that pic but coudnt figure it out.. it all makes sense now though... ignore me and continue posting pictures! haha

Just make sure to place yours further toward center than I did, lest you have to trim your bolts for clearance.

That seems to be a great idea and I think I should try it in my one too.