which intake?
 

i have both the aem and k&n typhoon intakes for my 8, i have used both but cant seem to get a huge power difference. the aem feels like it could be more powerful than the k&n, but it seems to have problems revving quickly sometimes. (i have removed the mesh screens)

1st response! Get your flame suit on buddy!

Since you are from Texas I will take it easy on you. Use the search function. This type of question has been asked a million times on this forum.

Read.

http://blackhaloracing.com/technical/rx-8-intake-tech/

I wonder why one would remove the meshes...

The K&N will actually rob you of power. The mesh screens are required to ensure uniform airflow. Removing them will also rob you of power and cause airflow issues.

the aem was causing a flapping sound and seemed to have less power than stock.. and when i removed the screens it stopped. i recently put on the greddy sp2 exhaust and was wondering which intake was better with it.

You need to train your search skills a little more then!

I have my flame suit on whenever I log onto this site so I will speak both freely and openly. Someone prove to me with concrete evidence (dyno results) showing that the K&N Typhoon short ram intake actually causes a loss in power. I have had mine installed for years and never experienced a loss in power. Furthermore I only drive my car in the warmer months so you would think the intake is drawing in only "hot air". The fact of the matter is that unless you are at a stand still and idling air is constantly being forced into the engine bay. If you are driving air is being forced into the engine bay in relation to the speed in which you are traveling. Who cares if the intake is drawing in hot air at idle! The whole "hot air" intake theory is simply BS started by haters and AEM intake advocates. I will stand my ground until which time someone proves me wrong with actual findings from some sort of testing.

Just log your ltft and intake temperatures vs ambient temperatures, you don't need a dyno.

If the air temp isn't significant enough to effect performance it's a moot point!

What if it was significant indeed?
Todd\Flashwing posted some datalogs some time ago, they made it clear.
I also switched from that POS intake to an AEM one and my fuel trims got back to an optimal range :)

There are dynos around proving that K&N loses power. When i first joined this site i was looking for intake. And read all about them here. I do remember seeing a dyno proving K&N did worse than stock. AEM has only be a minimal hp gain 3-5 if your lucky (with a good tune). The point being if you can pull in cooler air from the AEM then why not do it. No matter what, you are defiantly pulling in hotter air on the K&N then the AEM. Pointless to me. All in what you prefer, you will not "feel" a HP gain or loss off of something this minimal.

bse50 to each there own. I will show you respect as long as you do the same. Obviously you are an advocate of the AEM intake and thats all good and fine. The fact of the matter is you have not shown me any concrete proof that states the the K&N typhoon intake directly relates to a loss in power. Flashwing if your out there I would love to see the datalogs you posted. I know flashwing has alot of experience with our cars. The fact of the matter is "I" have not recognized any loss in power. Keep in mind I modifed my K&N somewhat and also relocated my battery and removed the stock intake tray. This being the case I have probably increased air flow into the engine bay.

I should mention that prior to these modificactions I still had not noticed any loss in power. I will state that both my water and oil temps have dropped by an average of 5 degrees since the modificactions.

This is a starting point, i found it with a search:
https://www.rx8club.com/showpost.php...1&postcount=15

Just do a datalog and see for yourself...

to be fair it's not his place to. It's your car, what should he care? luckily there are members here like him who as lesser assholes than I, who will point you in the right direction
And you wont recognize any change in power with ANY intake. Such losses or gains are simply too small. But for folks who want to be interested in those miniscule changes for whatever purpose, the information is out there. bse's link to flashwings logs are from 1.5 years ago, but this had been known for far longer than that and shown on the dyno. it's old news

Interesting but I would like to see how those temps directly relate to a loss in power. That is at those temps how much power is being lost. Furthermore, his climate seems to be way hotter than what I experience in NJ. 95 degrees is a very hot day, for the most part our Summer temps. range between 80 and 90 degrees.

Paul I never stated that it was bse50's responsibility to show me any results relating to loss in power when using the K&N intake. I have done alot of research in regards to intakes and as you mentioned none of them are really going to make a difference one way or the other. They are basically noise makers. I like the noise that my intake makes and once again "I" have not "noticed" any loss in power. The bottom line is eveyone should do what they want to their car. I don't come on here looking for approval. I do my research, come to my own conclusions,and than do what I want to my car. But in the same token I don't come on hear and bash someone for the intake they use. There are some shitty exhausts that people put on their cars too but no one seems to make as big of a deal about that!

go looking back a couple years in the forum. its there. or alternatively, gain a very solid understanding of how the PCM works, and what a change in intake temperature means to power production that way

it has nothing to do with any specific temperature. it has everything to do with a difference in temperature



make your own decision though, i doubt anyone will be willing to go digging through 2+ year old forum stuff to hand you what you seek. besides, as far as power is concerned you'll never be able to tell anyway.

Paul I'm not looking to be spoon fed information like so many other members here are. I enjoy doing my own research especially when its in regards to something that I have to drive and enjoy driving so much. Thanks for your input though. I'm really not trying to piss in anyones corn flakes.

I understand that you're not pissing on anyone's corn flakes but do you notice how you transitioned from a "it doesn't lose power" to a "anybody can do whatever he wants" statement?
Imho spending 300$ to lose 3-6hp is idiotic. So is spending 350$ to gain the same, I only have an AEM intake because of the weight savings and engine bay venting :)

bse50, I'm not backing down I'm simply stating everyone should do what they want to do to "their" car. Now your quoting hp losses of 3-6 hp, where are you getting these numbers from? I'm just curious I'm in no means trying to be argumentative! And if your just concerned with weight savings mine is probably lighter than yours.

https://www.rx8club.com/picture.php?...ictureid=22447

https://www.rx8club.com/picture.php?...ictureid=22449

That's a rough estimate given the temperature Delta etc.
I had your intake before moving to the AEM and the 2 things i didn't like were the MAF placement and diameter (maybe.. it's been almost 3years) and the intake temperatures even when cruising.

Not sure about 2-3 horsepower. There are dyno sheet results here somewhere and someone tested the Injen, Revi and K&N and the Revi made 10 more horsepower to the wheels than the injen and K&N. That's pretty significant. I don't recall what the baseline with the stock intake was, but IIRC the stock was the same or better than the K&N. And the guy who did the dyno was actually trying to show the Injen was a good intake and was proven wrong.

One thing not being discussed is the fact that these aftermarket high flow filters (all of them) allow a ton of dirt into the engine and reduce the life of the MAF sensor. There is a reason the speedsource and other RX8 race cars run an OEM style paper filter. That reason is sand in the oil pan on certain tracks when using the K&N filters. But I do agree that it is your car and you can do what you like.