It's called placebo effect and it's the reason tests and studies come in handy
plus the extra noise, like an aural illusion
It's called placebo effect and it's the reason tests and studies come in handy
plus the extra noise, like an aural illusion
i think u r just gettin arsey because u r using an open cone filter and everyone is slagging them off
when i had the K&N i could feel slight flat spots under acceleration at times,, normally when i had been sat in traffic or something, so i made a heat shield for it which slightly improved the problem,, so with that that in mind i then made fully enclosed sealed box for it, fed it with an air feed from down by the bumper which completely solved the problem,, so thats my testing done under 3 different stages using the same filter, and the only thing that has changed from step one too step 3 is that it could no longer draw air from the engine bay, its not a placebo effect.
what extra noise? its enclosed?
You can have the same issues with non oiled filters. Its the Air flow through the Maf with a K&N or other filter the air rolls as it is sucked through the filter causing the MAF to mis read. If you google apexi filters you will see they have a cone on the inside of the filter which smooths the airflow through the MAF and into the intake.
I can't remember where but one of the big tuners did a lot of testing on the different types of filters and this issue was brought up.
![]()
What a load of billy ball bag.
It says absolutely nothing about "swirling air" or MAFS on that site.
It's quite common and a simple google will find you all the info you require.
No, google will find a heap of crap marketing like that graphic you just posted made to fool people such as yourself in to buying inferior filtration devices for their cars thinking that my magically smoothing and caressing the passing air in to a happy and uniform flow will result in added horsepower and increased internet bragging rights.
Bed you wear one of those 'power balanace' bands don't you - the ones that smooth your blood out with intergalactic crystals to instantly make you stronger and more flexible so you can nosh your own weiner.
Oh dear such an angry little man just because someone says somethig you don't agree with. When you have grown up a little then feel free to discuss why you think that it is all rubbish rather than just posting insulting rubbish. But I imagine you are one of these I'm 22 and know it all types so we will get nowhere fast...
Has anyone actually done any decent testing when it comes to heat soak on a naturally aspirated car?
who do you post as on CGTI?
Ok now I'm confused!!!!
Air filter performance varies depending on the car/engine/bay layout etc.
It's not correct to say cone filters are rubbish full stop. The tests done in the thread I linked to showed a marked improvement using a cone filter over a standard airbox setup.
My advice would be to read up on what people have spent a fortune trying out on the car you have!