theory

iTrader: (5)

Is there enough pressure using a "snorkel" to suck air from the brake duct into a sealed cold air box to provide a significant difference? (I'd prefer to use a type of snorkel and sealed box rather then put my filter all the way down there)

Are there other areas that would be better for more cold air flow from the outside?


P.S. I have a 1987 GXL.

311unity13B

the vented headlight cover

evelhalo

i also have an 87 gxl, i cant really find a good place to put an extra scoop/snorkel. I was thinking about using the headlight-scoop to flow air into it.
otherwise i was looking into an electric fan for the cold air box, or using bottled o2 to cool the box.

theory

iTrader: (5)

Yeah, I've been trying to read up on the whole concept of intakes, pressure, etc..

I don't think that the headlight duct is as functional as I think something else could be. I'm not a professional by any means, it just doesn't seem like such a small duct can be extremely functional.

I thought about maybe some type of scoop in the fender well, that routes to a sealed box through a pipe?

Or a similar idea from the front lip? However I don't know if it would take to much air away from the rad.

311unity13B

alot of air will come in through that vent hole at speed

evelhalo

you definately COULD make something more efficient, but unless youre really good with fiberglass and body work, or ant to spend alot of $$$ youre best bet is probly the headlight scoop, also there is a small hood scoop you could put right where you need it but thats alot of fabrication

Nick86

iTrader: (1)

The vented headlight covers are no good - especially when you factor in the cost! Sure some air will get in there at speed, but not enough at regular speeds.

If you have a sealed box, then using the stock snorkle will be fine. But with a non sealed box, not enough air will get pushed up through the snorkle.

You've probably seen my design before, but here it is again:
https://www.rx7club.com/showthread.p...ghlight=Nick86

Page 5 has pics and writeup.

theory

iTrader: (5)

Yeah I've looked at it a bunch of times actually.

I was thinking of doing something very similar.

Pretty much add a scoop to the end of the intake in the brake duct area and completely seal the box.

But I just wanted to see if there were better options.

evelhalo

I think if you ha the $$ making a snorkel into your sealed box from the headlight cover would suck air in more efficiently than the sock snorkel wouldnt it? anyway if you got like $114 its just the best option for a straight snorkel ino your box, and can only increase airflow, but ya being a broke a** Motha myself, the stock snorkel seems like the best option

theory

iTrader: (5)

Doesn't sound to bad.

I'll just see if i can read up and find anything else on the subject to make for a fun project.

Any other fresh ideas?

evelhalo

not really but i think you and i and many others have this same problem, im gona get under my car tomorow and see if i couold find a plac for a snorkel

personally, i am going to run a snorkel from the headlight cover (when i can afford it) and im going to instal an electric fan (like a turbonator or electric supercharger)

you should post if you come up with anyting, id lilke to purchase or hel you design a new snorkel/scoop/cooling idea

theory

iTrader: (5)

I definately will do that.

evelhalo

maybe hook the snorkel from the vented headligt cover to a mini air compressor, they run off 12v, A double terminal battery is $140. Kinda pricy, but lots of air from the little hole.

or maybe somehow hook up a compressor/comdenser to the side of the box running off pulleys or the batt?

SureShot

There is another high pressure area where the hood & the windshield meet.
Many race cars us that area for ram air/CAI.
The brake cooling duct is a better ram air/CAI location for a street car where brake cooling is not an issue.

cbrinega

My approach was to relocate the washer fluid bottle, greatly enlarge the hole for the bottle neck, and build a custom air box. I also kept the brake duct and removed some plastic above it, so I have not impaired the brake cooling. The pictures don't do justice to the size of the air channel (had to move the air pump silencer too), but it is about 4x6 inches at its narrowest point.

https://www.rx7club.com/2nd-generation-specific-1986-1992-17/latest-mods-fd-alternator-cai-general-status-459942/

theory

iTrader: (5)

I guess there are limited spaces for this. I wonder if a "snorkel" with a split part so air could still get to the brake for cooling, but also get sucked up into a reducer into an air box?

playdeadva

how about spliting the tube that comes out of the air pump and stick it into the air box? the air pump could push air into the box and maybe increase flow??

theory

iTrader: (5)

That does sound like an intriguing idea as well. I wonder if doing that would take away from the original function of the air pump, as in woudl it still have enough flow/pressure to perform it's original task.

Has anyone ever tried any of these ideas? other then a basic headlight cover, or brake duct.

evelhalo

Im gonna go to Home Depot tomorrow, make a col air box, and put that hose into it (off the air pump)
ill post with results

theory

iTrader: (5)

I'm interested to see what happens.

playdeadva

what if you made sorta like a double layered box and ran a tube from the a/c in between the sheet metal. then you have, a cooled cold air box haha.

SayNoToPistons

the opening isnt large enough to create a noticable affect n cold air. ive seen people use the old airduct to lead air into the area of the filter. and they use thin aluminum to block off hot air from the surround area and trap the cold air coming in from the air duct.

SayNoToPistons

take a look at this... this is what im talking abouot ^^^^


http://videos.streetfire.net/search/...15E910B425.htm

DarkKnightFC

Honestly if you wanted the best solution it would be just to have an insulated cold air box. You can buy cheap insulation **** from lowes, which is what I did and glue it to the inside of the box. It keeps my filter noticeably cooler. Ditch your washer bottle neck and run something from the brake duct to that hole. Leave the bottom of your box open. This is also what I did. Even after letting the car sit it doesn't really heat soak. You're not going to "force" more air into the filter no matter what you do, you just allow the filter to breathe the coldest air possible by supplying the cold air box with fresh air.


Chris

Tournapart

iTrader: (4)

you could always go with an E-charger, rofl

if it were more in the 20 dollar range it would be worth it

too bad they want like 300-600 for they're kits

what a waste of money, i feel sorry for the folks that bought that crap