New "Cool Air inatke" is put on the market in Japan.

Near 3000rpm to torque becomes thick, and town riding becomes very easy.

From the Nakamura racing factory (NRF), it is due to put on the market in February.

It is just going to test the grade of a water temperature rise. It goes up by about 3degrees(℃) (it is cold) at present.

thanks for the news. but Racing Beat already produces a duct only in a much nicer form

http://www.racingbeat.com/photos/18298.1.jpg

That Jiffy Pop intake has GOT to be a put-on!? A shoebox with a dryer duct? Where is Billy Mays to sell this thing to us?

It is designing so that the air which entered from before may whirl around unlike the other company.
Since a wall is not behind an entrance, a smooth air intake can be obtained.

I completely grasp the concept but, sometimes, I wonder about the thought input/effectiveness ratio.

That Jiffy Pop intake has GOT to be a put-on!? A shoebox with a dryer duct? Where is Billy Mays to sell this thing to us?


(・・。)?　what "Billy Mays" ?

Is he? -=> http://images4.wikia.nocookie.net/uncyclopedia/images/0/0f/Billymays.gif

ww

Yeah, that's him. He yells a lot when he does his commercials. I was poking a little fun.

Ehh I want to see a dyno comparision on this and revi

I completely grasp the concept but, sometimes, I wonder about the thought input/effectiveness ratio.

Thanks Charles.

How many air intake efficiency increased, or how should concrete data be taken?

Dynos wouldn't re-create the dynamic effect that these products both seemingly benefit from.

Ehh I want to see a dyno comparision on this and revi

Since an effect does not show up unless neither applies a run wind, it cannot measure by a chassis dynamo.

J, I suppose the only way to assess the effectiveness would be to have a number of drivers drive the car both before and after, in a blind comparison test, and see if they can tell the difference. My guess is that such a mod would be a completely subjective thing and we would never be able to really tell other than to try it for ourselves. We have the same argument, 4 years later, as to whether or not aftermarket intakes of ANY kind work. Strange as it seems, nobody has even placed a vacuum gauge in the factory intake box to see if it really IS an impediment to airflow. Perhaps, since I have two factory intake boxes, should I become bored one day, I'll do it myself and see what readings I get.

yeah, that thing looks home made!!!

yeah, that thing looks home made!!!

A pic is a version under development.

I think home Depo have it in stock

LOLcopter

that's two pieces of duct work... 99 percent of the people on the boards could make that from things in their attic

hell, you can even see the aluminum tape they used.

LOLcopter

that's two pieces of duct work... 99 percent of the people on the boards could make that from things in their attic

hell, you can even see the aluminum tape they used.



A pic is a version under development.


When people make prototypes they have to modify things so for all we know the end product could look much more professional. Or are you just looking for a snazzy sticker on the intake to make it look better?

that isn't a prototype.. it's two guys, a case of beer, and too much time on their hands.

it looks like tin foil.

I kind of like the design. it's clearly a very early development stage but the air path seems much more fluid than racing beats. air doesn't like right angle bends and the RB one is full of them.

J,... Strange as it seems, nobody has even placed a vacuum gauge in the factory intake box to see if it really IS an impediment to airflow. Perhaps, since I have two factory intake boxes, should I become bored one day, I'll do it myself and see what readings I get.

Save you the trouble. Couple years ago I bought some Dwyer Magnehelic Gauges, installed tubing connectors to the factory intake box (I have two boxes as well) and hooked the guages up into the cockpit with tubing. The pressure differential between before and after the filter and the atmosphere is so small so as to be inconsequential. Mazda did a good job, as expected. I was testing only at under 60mph (highway) speeds. That's when I lost interest in commercially available intakes pretty much. I proved to myself they were nearly worthless, except....

If there is any benefit to these type boxes, pressure wise, IMO it likely would only become evident > 90mph where some small 'ram' effect would be "possible" (not guaranteed). I thought what might work would be a large bladder taking up the space behind the bumper. With the intake duct acting to pressurize a bladder it would provide a large enough quanity of pressurized air for the engine intake box to feed from. Too much work, but fun to think about. But I have too much time on my hands, obviously. :lol:

On the face of it, I like Jyariten idea.... and having a deeper box could be better, air flow testing would be needed to prove it out however. What seems reasonable, sometimes isn't or isn't worththe extra trouble. But I applaud you for the effort. And to those that say it looks like Home Depot, etc., so what? Any inventor starts with a mock up or for one offs, it may be the final that looks like it was made of cardboard or whatever.

But if it works enough to try out, who cares? If it can't be seen anyway, what's the problem? Bling/label envy or what? And I'm sure Jyariten had way.. way.. way.. more fun and reward from doing it his way than buying a Revi... which doesn't do much either...really :spank:

Spin, I am sorry as I had no idea you already performed this task. That was awesome and thanks for sharing your observations.

Guilty, myself, on the "Home Depot" variety comments. I was just poking a little fun at J and I am glad he took it in stride. Then again, I have endured my own brand of harrassment from others just fine and my stuff is still out there for others to scrutinize. Perhaps J could have his product injection-molded, eventually.

http://i240.photobucket.com/albums/ff266/spin9k/SN380069-s.jpg

Jyariten, this picture is awesome. Show you really put some thought into the design. This roundness should put a good swirl into the airflow, like you said a Tornado! Why do you think that is a good thing BTW?

Will the final product be made of plastic/carbon fiber/? Cost?

Spin, thank you.
I think that it finally becomes black Colgate finish by FRP.
The price is planning about 25000 yen in Japanese yen.

+ Sipping 3500 Yen and Task .. ww

you'd be surprised at what asian people can do with shitty looking stuff, i couldn't believe my eyes in thailand, they put really wierd shit in their car that you guys would probably consider as "rice" "stupid" "shitty" but........they do go fast @.@ like home made turbo kits with F-con EMS for the rx8......idk how they do it -..-

It still looks homemade. So how much is the price in US... $400? It looks like it was something that was made from some stuff found in home depot and a cheap immitation of the Revi. If it uses those materials, no one will buy it.

What is the point of having the airflow swirl around before it hits the filter.

Isn't it just going to get disrupted and go back to how it normally would flow after the filter?

he's baaaaaaaaaaack

he's baaaaaaaaaaack

Kinda like a bad dream! :lol2:

Better get the turbo post counter all warmed up and ready to go.

wouldnt the screen(s)....if you have them, just straighten the air .....

It still looks homemade. So how much is the price in US... $400? It looks like it was something that was made from some stuff found in home depot and a cheap immitation of the Revi. If it uses those materials, no one will buy it.

Ahhh....:scratchhe he said it was a prototype and the final would be black Colgate finish by FRP

also it would be 25,000 yen. thats $250. +$35s/h.

the duct is huge though. wouldnt it interfere with the radiator?

This TornadoIntake is the first step of an Intake system.

I consider an air filter box to be a silencer.
The air intake chamber of RX-8 exists near a throttle.
However, I think that its accelerator response will also improve if this air intake chamber thinks that it is small one and this is enlarged. Moreover, I think that intake manifold pressure will also be increased by this (dynamic effect).

Although it is expected that the filling efficiency of air increases by TornadoIntake although intake manifold pressure has RX-8 [ 0.05-about ],It is checking that pure 0.05 is going up to about 0.1 (it measures in the intake manifold pressure meter of Defi).

Intake Pipe to an air filter box is the same layout as Normal.
Although 80 phi etc. tried many things, since the thickness of Intake Pipe did not have the good rise of 7000rpm or higher, it is set to 100 phi now.

yeah, that thing looks home made!!!

Ja, it looks like OD's hand made dryer hose and cardboard shoebox on the end.

im working on a new ram air.... ill verify it with a leaf blower on the dyno...

but it will be a racing design also.. sooo expect summer 2008, (if it works), same "tornado" concept...

except think along the lines of the inside the barrel in a gun..

"not the tornado fuel saver" hahahahaha

boy i bet somebody laundry room is nice and cozy with all that warm air coming from the dryer!!

My dad told me swirled airflow will make the engine run smoother. but i dont remember how it could be smoother.

What is the point of having the airflow swirl around before it hits the filter.

Isn't it just going to get disrupted and go back to how it normally would flow after the filter?

Swirling air is suppose to atomize fuel better. A few years ago honda had a civic called the HX. It swirled the air at cruising speeds by allowing 1 intake valve to open normal while the other opened a 1/4 or so. This made the air swirl in the combustion chamber it's self and the car did get better gas mileage then a V-tec for about 5 hp less. At WOT the V-tec-e on the HX would lock the second valve on the same lobe as the first. That should work the best.
Now if you try to swirl air before the throttle body it might help but. The air has a really long way to travel. It has to get passed the throttle body (witch can stop the spin) then break up into other pipes bend and wrap around, then go into the combustion chamber and get fuel and still swirl it.
Only real way i can think to test this is by recording the air speed it's self before and after from various locations on the intake. I wouldnt expect mush if any gain in hp.

Still waiting for this to come out..Not the homemade one. Jyariten.. Where can we purchase this when it does come out? And any exact date as to when it is coming out? Thanks.

Airflow does not work like that in the intake. Laminar flow is the goal but you don't have to swirl the air to get laminar flow. I remember the stupid tornado infomercials where the guy used 2 water bottles to show that swirling the water allowed the water from the top bottle to flow faster into the bottom bottle than no swirl. This was a crap display as the swirl creates a void in the center. With a closed experiment like that 2 things are getting displaced, not one. Air has to move to the top bottle. Water flows faster when swriled because the air in the bottom bottle can now move unimpeded to the top. If you take just one bottle full of water and turn it upside down, it's the same experiment. It just makes a mess. Drill an equally large hole in the top of the bottle instead of swirling it and suddenly the flow is fast again. It's crap.

As was pointed out, air does not continue swirling through the filter. Swirling it after the filter means more of it is concentrated towards the outside walls and less so towards the middle of the pipe. This is effectively making your intake smaller and hurting flow. This is a bad idea and it doesn't work. If you look at "tumble generators" such as those in Subaru intakes, air tumbles. It doesn't swirl. Air swirling into a cylinder is a different matter altogether and it's still a different direction than swirling it in the intake in this manner.

In a carburated system, the point of swirling air like this may be benefical to helping fuel atomization although dyno testing proved on a 1st gen RX-7 that it actually lost power so go figure!

On the RX-8, swirling air in this manner is the result of a guess based by those who have never done any airflow testing and also by listening to the propaganda of every other air swirling product out there that doesn't work.

I think Rotary God just gave the middle finger to the NRF tornado... I'm assuming that's a +1 for that Racing Beat air flow part huh?

How much is the revi intake system and where can i get it? Any one selling 2nd hand?

Wow..His first post and it's definantly in the wrong area...Dude..You don't post looking for other people's products when someone is talking about another intake duct.. -_-;; and we're talking about intake ducts..not airboxes or the system as a whole (persay) you should read next time before posting...:suspect:

How much is the revi intake system and where can i get it? Any one selling 2nd hand?

www.racingbeat.com and next time use search

If anyone is planning a move from stock to any aftermarket intake mod, can I please have some before and after data so I can look at (and post) the mod's affect on long term fuel trim (better known as MAF calibration)?