I gots a 1991 s5 n/a looking 4 a short ram intake!

Like a k&n or does mazda make any aftermarket intakes 4 these 2nd gens?

 

A "short ram" is just ricer talk for a small intake tube. It is not at all "ram" in any way, shape or form.

There aren't very many complete intakes available for the FC primarily because they're not necessary. However if you want to spend the money, Corksport has them.

Or just search this forum for "prelude intake".

 

Waste of money. Buy a cheap open element air filter if you want to get rid of all the airbox stuff.

 

rotary king eh? i swear these threads are posted every day. here's 2 from the first 2 pages.

https://www.rx7club.com/2nd-generation-specific-1986-1992-17/aftermarket-intake-fc-793132/
https://www.rx7club.com/2nd-generation-specific-1986-1992-17/91-s5-intakes-793611/

 

In my experience;
the stock airbox is just fine, an open element filter will just suck up hot air and is a waste of money if you're N/A, get a K&N drop in filter.

you COULD also fab up your own open element air-box with about $10 in materials (cardboard or contruction paper and a small sheet of aluminum) and about 1 hour of your time. there is one person who did this and his results seem to work but i cant recall their name on here.

 

I went to advance auto and got a civic intake and made it work for my turbo II

 

i dont have any flasher lenses on the front bumper!!

Can i get cold air threw the open hole wher the lense went on the passenger side wher tha air box is?

 

If you go to the search and type in cold air intake, or visit the Naturally Aspirated Forum, you will be able to find plenty of threads of people who made a "cold air" intake. Don't expect much power gain from the money you spend though, a K&N Drop-In is where your allegiance should lie.

 

heres mine on a S4 with carb legal HKS filter



im making a duct that goes where the washer resi. was

 

Here's mine I did for my Bönez, It utilizes the original fresh air duck from the stock box. I have since put in a flex a lite e-fan so i have to re do it. I also made a prototype that I ran for a short period that had a polished aluminum top that bolted on it, nop pics of it though sry. I didn't use that one long because it was a few mill. to high in the fender corner so it rubbed and i never fixed it yet lol. When I get back To massing with the 7 again someday i plan to fab a one piece from fiberglass with fresh air ducts from under the car.

 

^pretty nice looking imo

 

yea thats bad azz ima do that!!!


Ive seen quit a few like that n it looks like u can get sum gain!!


So do yall use around the filter? sheet metal?

Does this require any welding?

 

I used aluminum flashing for mine. I used small nuts and bolts to hold the bottom on mine. I used the stock bolts and mounting holes that the stock air box used as u can see in the pic with the filter off.

 

Although I appreciate the effort and craftsmanship expended on this mod, I'm not sure I see the point.
In essence, you've just made a homebrew version of the stock airbox- wouldn't it have been simpler, and equally effective, to just use the stock parts with a K&N drop in filter?
Relying on the stock feeder tube means that neither the volume nor the temperature of the air available for intake has been changed, so basically this approach assumes that the stock filter box is the main impediment to performance.
This may or may not be true, I lack the equipment to test this theory, so when I fabbed my intake I decided to place more emphasis on placing the filter in the coolest area possible- the nose cavity, in front of the radiator- and, quite honestly, the aesthetics of the engine bay.
I ended up with this...

 

"you've just made a homebrew version of the stock airbox"

Yes I guess it could be viewed that way, but as far as air goes it has a open front to it so what doesn't go thought the rad. and what not gets blown through here. Also my original plan was to use the vented light cover, but i didn't go with it cause it strayed away from the stock look.

Also the Bönez filter mad a big difference in performance over the stock box set-up any how. I mad a big difference in throttle response, and this is even before i got the full racing beat exhaust. I think at the time i only had my header and cat on.

And also in other fact its a Bönez instead of a K&N so it utilize a open ended cone design ans you can just see a little of in some of the pics. The open end is followed up with a molded needle on the inside of the filter to "direct/concentrate" the air and eliminate turbulent and dead pockets of air as it enters the AMM. And also looking at air flow efficiency, the stock box is efficient and a K&N would reduce the restricted air flow. But the "box" design still remains, so it is still sucking air from a rigid designed box witch leaves many turbulent and shifting pockets of air as it enters the AMM.

So you could also conclude the same affect of running a Bönez or similar engineered filter is some what comparable in theory to the "Tornado" inserts that people get at auto zone. The "Tornado Is a slightly different method and result though so We'll leave that for another day lol.

But Don't get me wrong I like what you have don there, clean and simple. Like I posted before I would like to try something like that when I get the time.

 

ok i c wher yall r getting!!! thanx

 

The only way to get a CAI is to cut into your car...right under the stock air box then run a pipe to the brake duct area...nothin but cooler air but i dont see myself cutting into my new to me rx7

 

Well there is another way you could do it....i did it on my old TII a few years ago and I'm prob gonna do it to my TII in a few weeks. I mounted the radiator more vertical. all i did was buy a foot of small conduit and longer bolts from home depot. i tilted the radiator up and with a marker i marked the angles that i needed to cut on the conduit. then i cut the conduit with my rotary tool and slid the longer bolts into the radiator, then into the conduit and screwed it into the radiator support. it gave me enough clearance to have a 2.5" pipe go from the MAF sensor straight to the front bumper and it was never too hot beside the radiator...heck anything is better than it running right across the top of it like stock. I was even pullin one more pound of boost after i did this

 

^^^Also you will have to run an electric fan

 

FYI: if you use the search button, you may need to spell your keywords correctly to get usable results back.

I wonder if the kids in school today write their research papers like they are texting.... any teachers on this board feel like chiming in here?

 

This is my setup. I'm not done yet, still need to install a scoop in the hood and a "box" to block the heat. But this intake on stock S4 NA motor with headers/nocat made 155 rwhp/135rwtq

 

^^^Once you get a scoop on there with a box then that would be awesome!!! Short intake path and far away from the engine, just add cold air haha

 

Wow. My gxl just has a cone filter on the stock intake tube with the afm aft of it.

It sounds rather meaty but i dont see the point. It still gets hot as hell underhood. The stock scoop/duct is there but still.... I didn't do it. Car was like that when i got it. Pics tomorrow.

 

so cool air basically comes 4rm the bottom?

 

No it comes from anywhere but the general area of the engine bay (so separating it from the engine bay space as many have done could also be considered cool/cold air). Easiest place to get it though is closer to the bottom of the car near the front. Anything else is really just for show.