RX7Club.com - Mazda RX7 Forum

RX7Club.com - Mazda RX7 Forum (https://www.rx7club.com/)
-   1st Generation Specific (1979-1985) (https://www.rx7club.com/1st-generation-specific-1979-1985-18/)
-   -   My Low-Rent Ghetto CAI (https://www.rx7club.com/1st-generation-specific-1979-1985-18/my-low-rent-ghetto-cai-836771/)

DivinDriver 04-30-09 11:25 PM

My Low-Rent Ghetto CAI
 
Seems like intake systems are coming up a lot lately, so I decided to swallow my pride and post up some pictures of my low-rent CAI system.

Worth a laugh from the materials choices if nothing else, but it actually works just fine.

$3.00 plastic 3" flange, cut into the side of the radiator support:
http://img.photobucket.com/albums/v2...f/CAI_0001.jpg


Fabricated aluminum horn replacement - - oval to round adaptor:
http://img.photobucket.com/albums/v2...f/CAI_0002.jpg


Aluminum flexible vent tube, 3" ID:
http://img.photobucket.com/albums/v2...f/CAI_0003.jpg


Assembled system, total cost; about $10 if you count the hose clamp and tape:
http://img.photobucket.com/albums/v2...f/CAI_0004.jpg

The rofls can now begin.

rxtasy3 04-30-09 11:50 PM

cheap mods r always good, especially when they work. nice job.

84stock 04-30-09 11:59 PM

Been there done that with my old 12a (even cheaper, got an intake tube from a caravan at the wrecker. Just add a K&N filter and you're good!

BlackWorksInc 05-01-09 12:38 AM

Billy Sells a replacement radiator mount just like yours so its not all that ghetto? and the Laundry ducting has always been a low budget solution for CAI, so dun feel embarassed?

Hyper4mance2k 05-01-09 12:50 AM

Good work right there!!! Exact same setup I had on my First FB, and very similar to what I ran on my Turbo FB's.

White81Z28 05-01-09 07:11 AM

Man I love the way your engine looks, where did you get that blue tubing for your vacuums and rad drain.

Did you paint your sensors blue also?

Can you give me a pic of the other side?

Even your air pump looks sweet.

DivinDriver 05-01-09 09:14 AM


Originally Posted by DemonSpawn67 (Post 9172339)
Billy Sells a replacement radiator mount just like yours so its not all that ghetto?

Now, don't spoil my fun... I hacked that hole in there myself. Pretty much burned up the dremel tool in the process, too.

I was originally going to fasten the flange with screws at the corners (you can see the holes) but then I realized that the flange on one side, and the hose and clamp on the other, made the mounting screws unnecessary. The flange fits the hole very snugly, too.


Originally Posted by White81Z28 (Post 9172762)
Man I love the way your engine looks, where did you get that blue tubing for your vacuums and rad drain.

Did you paint your sensors blue also?

It's all stock parts in there (30 yrs old), just refinished with an anodize-look lacquer. The original plating has all corroded over the years, & I like a colorful bay.


Originally Posted by White81Z28 (Post 9172762)
Can you give me a pic of the other side?

I haven't taken one with the CAI back on since I just put it back on 9pm last night, but here's some pretty recent ones, from this month:

http://img.photobucket.com/albums/v2...f/P1010012.jpg

http://img.photobucket.com/albums/v2...f/P1010018.jpg



Originally Posted by White81Z28 (Post 9172762)
Even your air pump looks sweet.

Thanks! Scrubbing and painting can make an amazing difference.

White81Z28 05-01-09 09:38 AM

So where do you get the paint and blue tubes?

Thanks, I like the look you have.

lepichichi 05-01-09 10:18 AM

cheap modes that work are always a plus :)
nice engine bay BTW

DivinDriver 05-01-09 03:01 PM


Originally Posted by White81Z28 (Post 9172934)
So where do you get the paint and blue tubes?

Thanks, I like the look you have.

Blue silicone vacuum line: Mazdatrix. Many colors available.
Blue tubes are the stock aluminum tubing, stripped and painted.
Blue- (and red-, and yellow-) anodize paint: Dupli-color "metalcast." Pep boys. Two parts - metallic undercoat, and color clearcoat.
Blue electrical tape: Orvac Electronics, or any good e-lectrical supply store.

ray green 05-01-09 03:07 PM

Cheap and pretty, my favorite kind. I'll be doing that mod, thanks DD!

Ray

Richard Miller 05-01-09 07:03 PM

I understand that this should reduce the temperature of the air intake. This should allow for denser air and more power. Is this really worth doing. Yes it is a cheap mod, but does it really matter. has anyone dynoed with and without the cas? Where is performance most likely to be noticed, Road coarse, Drag strip, driving to the parts store? I am just a little skeptical. When I first heard of cold air intake, It was some Honda kids saying they had an intake. I thought it was high flow heads or some kind of a manifold. Nope just a tube that cost hundreds of dollars.

trochoid 05-02-09 12:10 PM

This is exactly what I suggested within the past week when somone asked about doing a CAI while still using the stock air box. As always, your work is immaculate 'ghetto' perfection. :icon_tup:

mxd 05-02-09 01:00 PM

^ +1

That mod is nice for keeping engine and intake temp consistant. It won't 'force' air into your carb causing it to lean out at high speeds, and allows the carb to draw its air from a cooler source than engine bay while in stop and go traffic.

It changes the sound of the engine/intake a bit. That is the nicest example so far, very clean... makes my 1000mph tape look even worse.... nm the chicken wire...

Rotor_king 05-02-09 01:53 PM

I wanna do this, but am worried about rain. Thinking about maybe turning the tip in front of the radiator so its not directly forward. Also maybe not connecting the other end directly to the filter box, just kinda sitting in front of it so it can draw air in like that.

DivinDriver 05-02-09 02:07 PM

The front open end of the intake tube doesn't face forward - - it's at right angles to the radiator. Hard to tell from the pix.

I wasn't going for a ram-air effect, I was just looking for a cool air source to help keep the charge dense. The stock airbox has weep holes, too, I think.

I wouldn't recommend going thru standing water deeper than the intake hole, but it's a good foot off the ground.

blackdeath647 05-03-09 09:40 AM

very cool, cheap mods ftw! the hose even has ridges to create that "gas-saving tornado effect" :lol:


All times are GMT -5. The time now is 12:23 AM.


© 2024 MH Sub I, LLC dba Internet Brands