celbii

iTrader: (2)

Could anyone reccomend me an Air filter for my NA 88? I was working on it today and lifted up the unit housing the filter and it was shot. The rubber was like jelly, it was fun to clean up .

Anyways what is the best brand of air filter for it? I've heard K&N but want to confirm that.

RB_eater

iTrader: (1)

I got a K&N and it works well, don't expect any extra perfomance though, it's just a filter. You could just a well replace it with a generic paper one, it does the job.

WadeMCarter

K&N. hands down. but do your research. Some places charge waaay too much for kits. I got the adapter off of ebay for 10 bucks with shipping included and then got an s2000 K&N filter from autopartswarehouse for 30 bucks. instead of paying 70 dollars or whatever for the same dang thing.

fc808vert

http://cgi.ebay.com/ebaymotors/K-N-A...spagenameZWD1V

SpooledupRacing

the stock air box is functional and can be modified a touch on the inside use a stock K&N u will deffinatly be in better shape then u are now!

synergy7

iTrader: (20)

I like the blitz sus, very fine steel mesh never has to be cleaned and oiled

CarzArKoo1

K&N indeed, just got my oil change and that thing is in there.

CarzArKoo1

sorry wrong topic, not K&N oil filter, i mean K&N air filter

CarzArKoo1

i heard of HKS are good too but those you need to search around for.

Sideways7

iTrader: (7)

No, HKS and Blitz filters are not even close to as good as K&N or similar (Bonez, Apex'i). They all have nearly identical power gains but the blitz and HKS don't filter as well as the oiled ones, which as as good as you can get.
If you are going to go with a cone filter, get the Bonez kit. It is good quality (much better than most ebay stuff) and cheaper than the apex or K&N units but functionally the same.
If you wish to stay with the stock filter location, get a K&N. They are more expensive but pay for themselves in a relatively short amount of time since they are reusable. If you don't get a K&N, get a wix or something of similarly good quality. Whatever you do, don't get a fram.

That said, if you still want the HKS filter (looks?) I have a used one for sale for 40 plus shipping without the filter.

synergy7

iTrader: (20)

K&N is **** Blitz or Apexi are the way to go

http://www.mkiv.com/techarticles/filters_test/2/

NoRotor,NoMotor

K&N is the best hands down, i bought the K&N drop in when i first bought my car then after that i bought the K&N filter injection preformance kit for $100 retail was $150 so i grabbed a great deal. Do your car good and get a K&N

celbii

iTrader: (2)

I swear, why do people feel the need to necro threads like this?
Btw, I bought the K&N about 5 months ago XD

Evil Aviator

The stock Mazda filter will have the best filtration. K&N products filter nearly as well as the Mazda filter, but flow a little better.

HKS is fine, but the filters get dirty pretty fast (about 10K miles in my case) and then you need to buy another one. There is a false rumor that the foam types disintegrate, but I think this would only happen when used way past their intended useful life, as I have never seen this happen when used properly.

Unfortunately, that article is ****. It is an infomercial written by Apexi vendors, and of course they didn't bother to use the proper SAE J726 test procedure... go figure, lol.

Mechanic

let us be real honest now... paper or knn or cone filters... nothing flows less than the afm (s5 atleast).. so.. whats the point of 50+ filters? ill stick with my papers..

until rtek comes out with something to eliminate the afm.

13b_cookie_monster

iTrader: (14)

oiled filters are known to cause problems with sensors... maf sensor's are really sensitive but any filter will do. k&n's are a bit pricey but everyone had their opinions on what work best. try one and tell us how it goes

Evil Aviator

It's not whether the filter flows more or less than the AFM, it's how much a given filter reduces the airflow to the engine. This is the case even when the AFM is eliminated, as well as with carburetors.

The point of high-performance air filters is to increase performance (go figure, lol). This is why you may have noticed many professional race cars with K&M or similar filters.

Why wait on Rtek when Microtech, Haltech, Motec, Wolf, Megasquirt, Electromotive, SDS, Autronic, AEM, and Link have been able to do this for years?

Our cars do not have a hot wire type MAF sensor. It is a myth that all oiled filters cause problems with hot wire MAF sensors, although I am sure that an over-oiled filter would at least cause a temporary problem. More about the myth here:
http://www.knfilters.com/MAF/massair.htm

incubuseva

iTrader: (13)

Evil is pretty much spot on. I just want to reiterate the fact that rotary engines are VERY sensitive to particles coming in through the intake. You will kill your engine if you get a shitty filter.

I run an apexi cone, had a K&N drop in before that. Both are awesome quality filters + I highly recommend either to anyone. I would stay away from anything else, even stock filters.

Mechanic

.... first off... i am not rich like you... and the rtek is pnp.

but thanks for letting me know what i knew already.

psychotic7

ouch it was just a sugestion. and you dont have to be rich, just good at budgeting your money or just get a second job

here are my two favs, they both have a down side but i tend to use the HKS because i believe that foam will flow a tad better than paper or cotton.
KnN years of proven excellence but a pain to maintain(cleaning and messy oil)
HKS just as good but more expensive in the long run(always having to buy replacement foam)

InGroundEffect

Sure, use a manufacturer document to disprove it is a myth. Isn't that like trusting Marlboro when they told you that cigarettes are not addictive and certainly do not cause cancer? I know for a fact that K&N filters can cause problems with the Hot wire MAF. It happened to me. After numerous trips to the dealer to diagnose a throttle hang and surge issue they informed me that the K&N was the problem. Replaced the MAF and I put a factory filter back in. The problem went away and never came back. The problem started shortly after installing the K&N. I will never use one of their filters again on a car with a Hot Wire MAF.

gear_grinder

iTrader: (4)

if its stock just get a k&n drop in replacement

dw89s5

u said u replaced the maf could that not have been the problem all along not the filter?
i just kno that stealerships near me always try to blame faulty machinery on aftermarket modifications

anyway back to the subject since we dont have hotwire maf sensors we do not need to worry about it k&n is a high quality filter for a reasonable amount of money if u wanted to save money u bought the wrong car

InGroundEffect

Replaced under warranty. Problem started and ended with installation and removal of K&N. They replaced the IAC several times before replacing the MAF.

back on topic.

I am currently using a POS Autozone Cone airfilter. Used an HKS for many years. Replaced it when the filter element fell apart and have not ordered a new one (had a track day the next morning and needed an immediate replacement). I noticed an immediate increase in low end power when I put on the HKS and removed the stock airbox. It also makes and awesome sound from the intake. My HKS though was over 11 years old when the filter element died.

Slideways FC3S

iTrader: (1)

Dude if your planning to do a TII swap or any other swap meaning not using your motor you have now. An Ebay kit for less than $20 shipped will work. personaaly i have found the ebay filters to run better than my messy K&N but its all up to you all performance will be around the same. the only way u could get more power would be dealing with the intake pipeing wich would have to be custom and a cold air box custom also. the only time i have seen any difference in power between cone air filters was when i ran with out a filter but it doesnt do much and i would not advise it at all.