was looking at products photo gallery at the sema website had a k&n typhoon intake for the rx-8
www.semaphotos.com/perfstreet/

Product: Typhoon Intake System / 2004 Mazada RX-8
Company: K&N Engineering Inc.
Booth: 23043
Address: PO Box 1329 Riverside CA 23043
Website:
Phone: 909-826-9198
Description: Performance intake that provides up to 12 horsepower includes carbon fiber base filter

Link no worky, try this one instead...

http://www.semaphotos.com/perfstreet.html

Nice big photo of the intake is here...

http://www.semaphotos.com/photos/B_00174.JPG

Yeah, thats the K&N intake that someone had prototypes of. Looks great, but as Chuck of Rotary Extreme mentioned, with the heat the rotary engine produces, a heat shield certainly would be needed. No price mentioned - has anyone phoned?

Ohhh.. Thankx a lot!!

David...

dang
that is huge

Yeah, have a look at the photos of rotaryextreme.com intake - it is the same filter but with heat shields and a polished top cover,

They are both K&N Filters B-Nez, only that this one diameter is much bigger, while Chucks at Rotary Extreme is 7 inches.

Oops, sorry. The whole scale thing...I should've read the posts more carefully. :D

K&N's website finally has a intake for the RX-8 but no luck in finding a way to see the price or order it. Here's the link.....

http://www.knfilterchargers.com/search/appsearch.aspx

I emailed them, perhaps we will learn more soo

Just released yesterday

http://www.knfilterchargers.com/search/appsearch.aspx

it is a typhoon type and it is part number 69-6030TP

Originally posted by tommy12g
Just released yesterday

http://www.knfilterchargers.com/search/appsearch.aspx

it is a typhoon type and it is part number 69-6030TP

Tommy, this is what KC posted already...

Called K&N today - their price for the kit is $289. It will be cheaper through dealers rather than buying it directly through the company.

WHat if instead of changing to a complete K&N CAI system what would be the drop in model ? Im thinking im just going to drop a replacement on my 8, RotaryGod seemed to know what he was talking about in Plelum and stuff like that and that the airbox is well designed and its already Cold air, so im thinking replace stock air filter panel, but does anyone know a part number for just the generic drop in?

when will dealers have it irish

Originally posted by mikeb
when will dealers have it irish

K&N said that it was only released last week, so it would be 'awhile' before it is distributed by dealers. You could pay the high price and purchase it from K&N, personally I am waiting. Need to see some reviews and feedback. Perhaps one of the vendors here will be getting them in...vividracing??

Why does it say "auto"? Is the kit only for the automatic?

-Mr. Wigggles

I had that same thought! Since K&N makes filters for all kinds of things, I think that refers to "automobile."

jds

Socalmotorsports quote me $208.99 including S & H to Puerto Rico
They can send it directly from K&N factory. I asked them about delivery time, I'm waiting for respond.............

Anyone have information about HP increase with this K&N filter?

Thanks,


Manuel Valentin

NO dyno charts yet, but i think it will lose power because its not a CAI!! the stock intake is cold air and its a huge filter, the only way anyone is going to get HP increases will be from a better CAI not from a regular Typhoon. In my eyes just a waste of money !!

I want to know what happened to the prototype K&N intake system that someone on this forum was testing. The more I read about this Typhoon thing the more sure I become that this is NOT the same thing. This thing seems like a car show intake to me, rather than a real performance add-on. I could be wrong, and generally speaking I think K&N is an excellent performance-oriented company...but even their marketing propaganda doesn't seem to treat it like a "real" intake.

jds

So is there any Intake out there thats a "real intake" b/c it seems that everyone says the orginal intake is the best becuse its already cai, so whats the point of intake then if this is true?

Yes, there is a "real" intake out there with dyno-proven results: the one by Rotary Extreme. Check out this thread for dyno results and more info... http://www.rx8club.com/showthread.php?s=&threadid=13610

Originally posted by bureau13
I want to know what happened to the prototype K&N intake system that someone on this forum was testing. The more I read about this Typhoon thing the more sure I become that this is NOT the same thing. This thing seems like a car show intake to me, rather than a real performance add-on. I could be wrong, and generally speaking I think K&N is an excellent performance-oriented company...but even their marketing propaganda doesn't seem to treat it like a "real" intake.

jds

JDS, this is the same intake..as shown below. I dont think its a waste of money, SummitRacing gave me a quote of $185 inc postage. What I am concerned about is the heat from the rotary. Rotary Extreme's intake comes with a heat shield, with Typhoon I just dont trust the space behind it. Wont all that heat cause problems...?

Hmmm...I thought the prototype that was being tested did have a heat shield...maybe I was just assuming it was an FIPK-style intake and read that on their site.

Between this one and the Rotary Extreme, I'd have to go with the RE for the heat issue you mention. I think you'll be robbing from your potential gains by taking in hot air.

jds

Originally posted by Irish_in_a_RX8
JDS, this is the same intake..as shown below. I dont think its a waste of money, SummitRacing gave me a quote of $185 inc postage. What I am concerned about is the heat from the rotary. Rotary Extreme's intake comes with a heat shield, with Typhoon I just dont trust the space behind it. Wont all that heat cause problems...?

Just placed my order for the K&N Blue Anodized Typhoon Intake Air System. I have trusted K&N for years now and was most comfortable with this purchase. Not too sure of the 8-10hp / 10ft lbs of torque claims though. Seemed a little high but I guess we'll all see in 5-8 business days :D

I went on the kn site and searched for a filter and or intake on the mitsubishi lancer evolution, which i believe is only offered in manual transmission, and it still listed auto for all of the filters. So the "auto" must be in general refering to all the models, not just for the automatic transmission.

Congrats. :)

cool...be sure to keep us updated with pictures and your thoughts!

Rotor,

How much was it ?

Originally posted by Rotor_Rev
Not too sure of the 8-10hp / 10ft lbs of torque claims though. Seemed a little high but I guess we'll all see in 5-8 business days :D

How are you going to see? Are you planning to do back-to-back before and after dyno runs? (Please???)

Regards,
Gordon

I got the kit for $189 from performancecenter.com. As far as the dynos, any suggestions to where and an approximate cost?

Let us know how the intake performs without a heatshield. Its the only thing that worries me..

I emailed K&N about what they meant by "auto". The auto stands for automotive, and it will fit all model 8s.

It is pretty intriguing for only $185 compared to $260. The setup is almost identical to the RE from what I can tell except minus the heat shield. A concern I had with the RE intake is that the heat shield is metal. It seems like it should be made of ABS plastic or something so it doesn't radiate heat. It is kind of ridiculous to call the RE a "real" intake when the design is so close......Has K&N given any claims as to the HP increase?

When the engine is sucking in air, the air speed is so fast that radiant heat from the heat shield has very minimum effect on air temp. If you don't have any kind of heat shield, the engine will be sucking in hot air directly. The K&N intake should work as well if it comes with heat shields but too bad it doesn't.

Chuck Huang

Originally posted by Brando
It is pretty intriguing for only $185 compared to $260. The setup is almost identical to the RE from what I can tell except minus the heat shield. A concern I had with the RE intake is that the heat shield is metal. It seems like it should be made of ABS plastic or something so it doesn't radiate heat. It is kind of ridiculous to call the RE a "real" intake when the design is so close......Has K&N given any claims as to the HP increase?

Originally posted by Brando
A concern I had with the RE intake is that the heat shield is metal. It seems like it should be made of ABS plastic or something so it doesn't radiate heat.

Well I dunno about you, but I think a polished heat shield looks a hell of alot better then plain ABS plastic. The metal heatshield also doesnt really get that hot either. If you like the stock ABS plastic look, I saw another intake on the forum that looks very stockish except for the K&N filter it uses. But it looked very poorly made to me, and didnt come with a cover for a cold air set up.

Originally posted by Brando
It is pretty intriguing for only $185 compared to $260. The setup is almost identical to the RE from what I can tell except minus the heat shield. A concern I had with the RE intake is that the heat shield is metal. It seems like it should be made of ABS plastic or something so it doesn't radiate heat. It is kind of ridiculous to call the RE a "real" intake when the design is so close......Has K&N given any claims as to the HP increase?

I don't feel that a $75 difference is that significant, especially since (a) RE has published dyno results, and I doubt K&N ever will (They typically don't), and (b) the RE intake DOES come with the heat shield, which IMHO is a big deal.

But I *do* agree with you that RE's heat shield should at least be offered in ABS plastic, both to reduce the cost of the RE intake kit, as well as to reduce radiant heat that the filter is sucking in when you're in slow or stop-and-go traffic.

I had the K&N intake installed about 3 weeks ago. I got it free for letting them do some dyno testing when I first got my 8 in August. The K&N system is a quality unit, and looks great. I could tell the difference in performance immediately. K&N claims 12 to 16 hp. I don't know if it's that much but the difference is noticeable during initial excelleration up into the top end. It really feels like the engine is breathing a lot better. It's as quiet at Idle and during cruising as the stock system, but changes significantly on excelleration. After driving a day or so I noticed that under certain conditions, mostly in stop and go traffic the engine didn't seem to have the same punch to it. I suspected it might be due to heat build up in the engine bay. Well I just got a call from the rep at K&N. They also noticed this reduction in performance and they want me to bring my car back next week so they can design and install a heat shield. I hadn't called them yet with my discovery, but I was impressed that they took it upon themselves to inquire when they suspected there might be a problem. If anyone is interested I will let you know how the heat sheild install works.

I HAVE BEEN RUNNING THIS KIT NOW FOR ALMOST THREE DAYS IN MY AT. HP GAINS ARE REPORTED AT 4-6HP AND BOY WHAT A DIFFERENCE IT MAKES. I DIDNT THINK IT WOULD CHANGE MUCH, BUT IT REALLY DOES INCREASE PICKUP.
THE 6SPD IS GETTING A REPORTED 9HP GAIN, PEAKING AT 15HP. OHHH I WISH I GOT A 6SPD!! THE KIT FOR THE 6SPD AND THE AUTO ARE DIFFERENT DUE TO THE ADDITIONAL INTAKE VALVES ON THE 6SPD(LUCKY BASTARDS!)
K&N SHOULD HAVE DOCUMENTATION POSTED ON THIER WEBSITE SHORTLY AFTER THANKSGIVING.

THIS KIT I'M TOLD IS CLOSE TO THE ONE USED IN THE LATE MODEL CORVETTES. IT ACTUALLY SOUNDS LIKE A REAL ROTORY MOTOR NOW, NO MORE SPACE SHIP EFFECT. AT IDLE, IT HAS THE SOUND OF A JET ENGINE BEFORE TAKE-OFF. WINDING THRU THE GEARS IT CLOSELY RESEMBLES A 13B MOTOR, BUT LOUDER. IN ANY EVENT, IT IS A GREAT ADDITION AS FAR AS I'M CONCERNED.

TO THOSE OF YOU THAT DO PICK THIS KIT UP, I HIGHLY RECCOMEND REMOVING THE RENESIS ENGINE COVER. IT SERVES ABSOLUTELY NO PURPOSE EXCEPT TO RESTRICT AIRFLOW. ALSO, THE STOCK INTAKE IS NOT, I REPEAT, NOT CAI!

PIX BELOW.... HAPPY HOLIDAYS ALL! :o



http://www.imgmag.org/images/jeremylna/MVC-303F.JPG

http://www.imgmag.org/images/jeremylna/MVC-304F.JPG

http://www.imgmag.org/images/jeremylna/MVC-307F.JPG

http://www.imgmag.org/images/jeremylna/MVC-305F.JPG

http://www.imgmag.org/images/jeremylna/MVC-310F.JPG

http://www.imgmag.org/images/jeremylna/MVC-308F.JPG

http://www.imgmag.org/images/jeremylna/MVC-309F.JPG OOOOOHHH... CARBON FIBER :cool:

RX-EVolved-
How much did you pay? and where did you get it from? (also part#).

TIA

Is there anyone out there who has installed this CAI and could post their experience with it? Performance gains most importantly.

Originally posted by Rx-Appreci-8
RX-EVolved-
How much did you pay? and where did you get it from? (also part#).

TIA

FREE... DIRECT FROM K&N. I WAS ONE OF THE CRASH TEST DUMMIES. ALL THE PART# INFO IS NOW AVAIL ON K&N's WEBSITE.

Yo, RX-EVolved, how is the K&N working out for now? Any problems arise yet?

Originally posted by MikeDemo
Yo, RX-EVolved, how is the K&N working out for now? Any problems arise yet?

SO FAR SO GOOD. LUVIN THE NEW SOUND/PICKUP.

Is it significantly louder or is it just a different sound quality?

How's the improvement in the low-end pickup?

I thought that pleople where saying that the open K&N filter was actually making the engine lose power since the filter was breathing in hot air? might be louder but i dont think that its actually giving you performance gains. IMO

On an ebay auction the K&N typhoon claimed 10 hp and 10 lbs torque. Is this tested or just a random figure?

Heres the auction: Auction (http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&item=2445780738&category=33630)

10 lbs of torque??iunno maybe

It is only hurting you in traffic and such when there is no cool air blowing in, at WOT I'm sure the hp gains are present..

The intake went on in about 45 minutes. There does seem to be a noticable hp gain. It will take some getting used to the new resonance under full thottle. This intake is LOUD.

Hey! There is a post above with my name on it that I didn't send.

That's the first time its ever happened to me.

Anyone know how that works?

:p

Originally posted by Rotor_Rev
As far as the dynos, any suggestions to where and an approximate cost? You can find a dyno in your area here: http://www.dynojet.com/ldynocntr.shtml . Cost will be anywhere from $60-$80 per hour. Be sure you get the shop to agree to unlimited runs within each hour, and that they do air/fuel datalogging.

I know all this because I got the Rotary Extreme CAI on my '8 (which is like the K&N only with heat shielding), and plan to get it dynoed versus stock. Results to follow within a few weeks... look for a new thread from me on it.

Hope this helps.

Rotor-rev, don't expect to be in the DFW neighbourhood this week.

WELP, IT AINT NO EXAUST KIT BUT IT DOES MAKE A DIFFERENCE. THE NOISE IS SIGNIFIGANTLY DIFFERENT, MUCH THROATIER. SOUNDS NORMAL AT IDLE AND AT CRUISING SPEED OTHER THAT THE SUCKING NOISE THAT SOUNDS LIKE A JET ENGINE AT IDLE. WHILE ITS NOT CAI, AND IN TRAFFIC IT MAY NOT BE OF MUCH BENEFIT(WHO CARES ANYWAZE, NO ONES GOIN ANYWHERE), PLENTY OF FRESH AIR ONCE YOU GET GOIN.

this kit goes for 189.00 not too bad i guess

ok this damn name thing is getting stupid jhouse posted this message and the one above

you can get the K&N intake on e-bay right now for $205 as well as color choice. Just type in Mazda RX-8 in the search.

Or from SUMMIT Racing for $173.:D

or truckperformance.com for 189

aI can't find it on summit racing man?:confused:

I found the instalation pdf while looking on the K&N website.
Instal guide (http://www.knfilters.com/typhoon/69-6030.pdf)
Has anyone installed it? Is it difficult? Reactions?

desmo,
good find thanks

Originally posted by RX-WillyStyle
aI can't find it on summit racing man?:confused:
You can't look it up by vehicle. You need to type in the part # listed at the beginning of this thread with KNN preceeding it. Or just call.:)

Alright folks - Both are finally available and both look great. They both seem to produce additional hp. and torque.

Which do we go with and why?

I'm under the impression that CAI (Cold Air Intake) is the better way to go but would appreciate some advice. I had a K&N on my last ride and it worked fine but the RX-8 is a totally different animal. I would plan to add the Borla or B&B Exhaust from VividRacing to round out the mods.

I've seen the K&N for $176 at Summitt Racing (search for thread)
and the RotaryExtreme CAI is $260 or a group buy of $230 (which expires 12/31/03)

Links - Should you want to check them out

http://www.rotaryextreme.com/rx8intake.html

http://www.knfilterchargers.com/news/news.aspx?ID=17

Thanks in advance.

I didn't get any intake yet, but I would vote for RE intake. We all know that's a lot of heat under the hood. Sucking hot air into the engine doesn't seem to help the performance.

RE Smaller Filter though I dont know ?

The two intakes are almost identical. The K&N has a larger filter and the RE comes with a heat shield. The K&N is going to suck in hot air in stop and go traffic but in a full throttle run there will be the same cool air blowing in there that the RE intake would suck in. If they were both the same price I might lean toward the RE but for the difference in $ I've got a K&N on the way.

is the RE avaiable yet
and how much is it ?

Mikeb - If you check out the RE link it will answer all your questions. $260 (plus S&H) via Paypal and its available. Any thoughts on either?

do you have a link?

Rotary Extreme link

http://www.rotaryextreme.com/rx8intake.html

sorry
I thought you meant RE the company in japan

Originally posted by mikeb
sorry
I thought you meant RE the company in japan

haha, so did i...RE-Amemiya...

IMHO Both are nice, but... Not worth the money. The stock box is as close to a cold air intake as can be. I'd rather wait for the K&N drop-in which will probably go for around $45 and, I'd wager, give you within 1HP of these two intakes.

Ok here is the deal. Shortly after installation I began experiencing irregular idle and often times the vehicle would stall. I took her into the Mazda dealership to have them take a look at it. They ended up having to reprogram the computer with a new image. They have been receiving several complaints similar to mine. This seems to be fairly common fix.

I'll let you all know tomorrow when I pick her up.

Rotor

IMHO Both are nice, but... Not worth the money. The stock box is as close to a cold air intake as can be. I'd rather wait for the K&N drop-in which will probably go for around $45 and, I'd wager, give you within 1HP of these two intakes.

If true, will it give the improved sound effects of the 2 other systems mentioned?

it would be a negative on the improved sound from just a K&N drop in, i like the RE and K&N also because of the throatier sound they would be producing

It probably wouldn't be as loud as the others, although it has been my experience that there is a slightly louder "whistle" (for lack of a better description) with it. What it boils down to is preference. But at what price sound?

alex where in miami are you? im in the lakes of the meadow (west kendall ) area

I will make you a bet that you gain no more than 5hp tops. Seriously I'll bet you. Your point about performance cars is flawed. I dynoed my modified 11 sec '01 Z28 with a stock filter and a K&N drop-in and gained 2hp. My friend gained 0hp in his 99 Vette, and another friend picked up 3hp in his 00 mustang GT. They just don't flow much better than stock filters.

Brando,
I had a K&N filter in my '91 MR2 Turbo 575hp. My question to you: are you still using the stock mass flow sensor. This would be a huge limiting factor since only so much air can get passed one. We want to control the air intake but we want more oxygen at times. With an after market you can suck more volume when you need it. Now do they make one for the RX-8 yet.

My thoughts on the matter have already been expressed by other members on here. Bigger filter vs heat shielding. No intake will give a huge power gain. Expect less than 10 hp from anybody's intake. This just isn't enough power to be noticable as far as sheer acceleration is concerned. Cold air does help but don't ever try to figure out how to run ram air. I know no one has brought it up here but unless your car can top 200 mph you won't need it. I tend to lean towards the larger filter element although the internal design of the filter plays a huge role too. Some aftermarket "cone" filters (I'm going to refer to this K&N filter as a cone as well) have a very nice gentle bell shaped radius inside them that aid in smoothening airflow into the pipe. Many others do not yet they all physically look the same on the outside. For those of you with the K&N system, find a way to put the stock intake cover back on. It may take a little effort and a trip to Home Depot but find a way to do it.

In the end, I'm sure that it is just a matter of personal preference as to which is right for you. If the only mod you are going to do to your car is an intake, save your money for the gas tank. With such a small gain in power it should really be thought of as a package deal along with exhaust and ecu changes. Every little bit adds up to a big amount but if the only thing you got was a little bit there isn't much point to it financially.

So RotaryGod from what i gather you suggest going with the K&N and then trying to put of the stock cover back on it? what about gettting the RE kit and just buying a bigger filter sort of like the one on the K&N intake? since that one already has the cover built into it?

To Chuck from Rotary Extreme, why didnt you guys use the larger filter that K&N is using?

I think he's suggesting to save your money for something else...

I still think that for the Much lower cost, the Drop in will probably yield within one to two HP of these two.

I don't have a problem with the RE kit. I just favor the largest filter I can get. I would see no problem with fitting a larger filter on the RE kit nor would I see any problem adding some sort of heat shield to the K&N kit. If this is going to be your only performance mod to the car then I say save your money. If you are going to do much more then go for it.

Again, thanks for all the great feedback everyone. Keep it coming, this is a very interesting topic to me.

'Rotarygod' brings up a good point. If the intake and exhaust are the only mods we're going to make, will the minimal gains be worth the $$$! I was only planning to do those two mods myself as I stated in the first part of this thread (i.e. intake & exhaust). I know that there is a slew of things that can be done and I'm sure I'll hear about them on this forum but I just don't have the funds to be able to do them all. I kind of thought that the addition of the intake and exhaust would be enough for me to notice a nice gain in hp and torque without hitting the pocketbook too hard.

What else would those of you suggest I add that doesn't start opening a can of worms. Computer upgrade, etc.? If in fact that gets done does something else have to be done to complement that mod.

'93rdcurrent' mentions something about a "mass flow sensor". Is this something that should be added to take true advantage of aftermarket intakes and exhausts?

Originally posted by 93rdcurrent
Brando,
I had a K&N filter in my '91 MR2 Turbo 575hp. My question to you: are you still using the stock mass flow sensor. This would be a huge limiting factor since only so much air can get passed one. We want to control the air intake but we want more oxygen at times. With an after market you can suck more volume when you need it. Now do they make one for the RX-8 yet.
I not really sure if you are referring to the camaro or the 8 in regards to the MAF. I know in the Camaro the stock MAF was sufficient for upwards of 600hp applications on seriously built cars. The aftermarket ones that were offered were found to cause it to run too lean and therefore cause the ECU to retard the timing to prevent detonation creating lost power. It provided small gains for some people, but since I was spraying the last thing I'd want to do is run lean. As far as the drop-in K&N is concerned, I seriously challenge someone to provide evidence of it gaining more than 5hp. Don't think that I am saying that you can't make big power with a modded car and a drop-in filter, I'm saying that the difference between the drop-in and the stock will be negligible. I predict these short ram systems for the 8 will make in the 10-12hp range at the peak. RE has dyno charts that show increases of like 16hp in the mid RPM range. I personally would say that is worth it and I expect the K&N would have similar gains.

Originally posted by success07
What else would those of you suggest I add that doesn't start opening a can of worms. Computer upgrade, etc.? If in fact that gets done does something else have to be done to complement that mod. I'd suggest the only other thing you get is Canzoomer's ECU fuel controller... $500 for 25-35 WHP is a hell of a deal, and will make a significant impact on your 8's performance. See these threads for more info: http://www.rx8club.com/showthread.php?s=&threadid=14823 and http://www.rx8club.com/showthread.php?s=&threadid=15950

Omicron - Thank you for the tip! It does sound like a great $$$ to hp ratio!

According to many of the above claims: For around $1300 we can gain roughly 55whp give or take. That's about $23 per hp or a round of beers for your boys during Monday Night Footbal. Worth it - I say yep!

I would agree. :D

THose are prob the only 3 mods i would do, intake , exhaust and ECU

The only other thing I'd like to see sometime soon is a header. That should round out a nice package of mods. Especially with the Stage 2 kit that Canzoomer is going to have(50-60hp). We could seriously see 80-90hp with just a couple thousand worth of bolt-ons. Most aftermarket turbo kits(for other cars) don't even give you that for twice the cost.

There are a few companies making headers, but the gains from them are disappointing UNLESS you get some exhaust port work done. The angle of the exhaust ports is too sharp for headers to help as much as they normally do.

Originally posted by Rotor_Rev
Ok here is the deal. Shortly after installation I began experiencing irregular idle and often times the vehicle would stall. I took her into the Mazda dealership to have them take a look at it. They ended up having to reprogram the computer with a new image. They have been receiving several complaints similar to mine. This seems to be fairly common fix.

I'll let you all know tomorrow when I pick her up.

Rotor

It's too bad your dealer did not check their online technical information. There is information regarding how some aftermarket intake systems either create turbulent airflow across the MAF, or oil from the air filter contaminating the MAF element. Both can cause a rough idle concern. BTW- there is not a reprogram for rough idle.

Is this real??? Click here... http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&category=38634&item=2448558503

Got to Have

Yeah, it's for real. I've dealt with that vendor before, and they're good people.

However, you might want to rethink that intake... it sucks an awful lot of hot air into the engine.

one thing that i hate is when people use the rx-evolve and the rx8 concept as photos for the production rx8, damm do these people have eyes??

Socal Motorsports called me up on the cold air typhon. He was reely nice and quick to call back. I did order it and I will post a how to section when I get it in in about 2 to 3 weeks.

Thanks P-Rock....looking forward to your finds, including any changes in pwr feel and sound.

Kevin

Which would be better? The Typhoon or RotaryExtreme's Cold Air Intake?

IMHO, the Rotary Extreme is better because it has great heat shielding. Yes, the K&N has a larger filter element, but it's overkill. If an engine flows (for example) at 300 CFM and you only need a filter that can flow 300 CFM. You use a filter that flows 2000 CFM is not going to give you more power. The filter that comes with the RE unit is capable of flowing far more air than the intake can pull... and the proof of that is that it's been used on RX-7s that produce 800-900 WHP.

Another thing: if you look at the K&N setup closely, you will see that the top of the filter blocks the fresh air duct. This mean that it pulls ALL of it's air from the (hot!) engine compartment. Also due to it's large size, if you were add a back heat shield, the filter pretty much occupies the whole compartment and there is really no room for air flow. I'm not even sure there is room to add a back shield.

Just my 2 cents. :)

There are also ways to reroute the air to allow better flow, but it is all in how you use it. I am going to press a heat sheld and bend another pipe to relocate the filter head in to the front grill like rotary extreme did the first time. You can buy some thing good and with a few small steps you can make it great, but becareful you can allso make in the worst thing on earth.........

Originally posted by Omicron
IMHO, the Rotary Extreme is better because it has great heat shielding. Yes, the K&N has a larger filter element, but it's overkill. If an engine flows (for example) at 300 CFM and you only need a filter that can flow 300 CFM. You use a filter that flows 2000 CFM is not going to give you more power. The filter that comes with the RE unit is capable of flowing far more air than the intake can pull... and the proof of that is that it's been used on RX-7s that produce 800-900 WHP.

Another thing: if you look at the K&N setup closely, you will see that the top of the filter blocks the fresh air duct. This mean that it pulls ALL of it's air from the (hot!) engine compartment. Also due to it's large size, if you were add a back heat shield, the filter pretty much occupies the whole compartment and there is really no room for air flow. I'm not even sure there is room to add a back shield.

Just my 2 cents. :)

I have done dyno testing between cold air intakes and open intakes that take in engine air. There is almost no HP difference between the two. As long as an intake is less restrictive than the stock intake you are going to pickup more HP either way. The gains from a cold air intake are not going to be noticable while driving on the street.
Testing I have done is on an RX-7 not the 8.

Jason

Dyno testing isn't really going to accurately portray the effects of getting cold air at speed, though. Fans don't cut it.

jds

Jason:

You forgot that rx7 has the intercooler to cool down the charged air. As long as the intercooler is big enough, cold air intake will not be as important but rx8 doesn't have an intercooler.


Chuck Huang

Originally posted by Jason
I have done dyno testing between cold air intakes and open intakes that take in engine air. There is almost no HP difference between the two. As long as an intake is less restrictive than the stock intake you are going to pickup more HP either way. The gains from a cold air intake are not going to be noticable while driving on the street.
Testing I have done is on an RX-7 not the 8.

Jason

have done dyno testing between cold air intakes and open intakes that take in engine air.

As already mentioned...the dyno doesn't cut it for portraying differences between a traditional short ram and CAI setup.

The best way to accurately get information on the differences would be sensor readings at speed from the PCM/ECU.

The Mazda6i and 6s both currently have intakes available from K&N, Injen, and AEM in both short ram and CAI configurations.

Of the companies providing these intakes, Injen's 6i CAI actually is a combination Short Ram/CAI and can be reverted back and forth between the two.

Members who have swapped to the short rams have noticed a definite decrease in power after a good 5-10 minutes of driving.

When sitting idle, the CAI and Shortram's show similar intake temperatures. The CAI's a bit less (around 95F vs 110 F+) for the short ram, but not significantly so.

However once moving, the CAI temps drop to basically ambient, while the Short Ram maintains its heat level, or rises.

Here's some CAN Bus captured information.

http://gcubed.sytes.net/gcubed/captureinfo.pdf

Note the first set of information is at idle, with the CAI at 98F.

The second set, while the car is moving, has the intake temp at 45F...a massive difference.

With the General rule of thumb being 10F = 1% Extra HP...

You can imagine the effect of 45+ F difference between the two pipes.

Here's a url with more information.

http://www.musclecarclub.com/library/tech/intake.shtml

Typically when you dyno you have the hood open and a large fan directing air to the engine. I have put a fan right on the intake. Its going to get more air than forcing air thru a small hole in the bumper. My experience is with the RX-7 so it may vary with the 8, but even it there is a 5 HP difference its not something you are going to feel on the street.

Jason

Just installed the K&N on our car -- just letting everyone know. No data on power and do not want to get into the hot air versus cold, etc. etc. discussion at this time.

It is REALLY LOUD - drowns out the exhaust completely! But sounds soooo cool!!

Do they offer a Big Asian discount?

Zerohour,

Can you give us any details on what they are doing differently with their CAI?

I have no info. on what the ram air intake will be. Hopfully some one else will

Alright, there has been a lof of talk on hear about this intake, whether or not it really can produced the HP increase that K&N states, well I intalled one on my 8 about 3 weeks ago and I could tell the difference right away. But I was able to pull this off the K&N site so you don't have to take my word for it...