Any opinions???

 

i LOVE the apexi filters if you have the pockets to get one get one, if you dont then i would go with the cone

 

I'm a personal fan of the cone just because they don't seem to look as dirty sometimes. I know that seems like a weird statement but it's just something little I noticed. BUT the mushroom filters seem to be much more of a space saver. Other than that a filter is a filter as long as it's constructed right and you keep it oiled.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by b18sihatch &raquo;</TD></TR><TR><TD CLASS="quote">i LOVE the apexi filters if you have the pockets to get one get one, if you dont then i would go with the cone</TD></TR></TABLE>


apexi filter is a cone filte too.

 

Compare surface area's first, and then compare manufacturers for quality

 

functionally is there any difference in performance? I have never really noticed any difference between the two... Anyone know anything I dont here? lol

 

i think you should look more at airflow charecteristices, most mushroom filters incorporate a velocity stack, like the hks and greddy ones (some cone filters do also like apexi), aside from that, dont think too much im sure most good filters are within 1hp of each other.

 

as sayd above; look for a velocity stack on the filter. that makes a difference

 

i wouldnt really say people get filters for the sake of gaining power. but for the safety they bring

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by b18sihatch &raquo;</TD></TR><TR><TD CLASS="quote">i wouldnt really say people get filters for the sake of gaining power. but for the safety they bring </TD></TR></TABLE>

cars already have filters, people replace them with high flow filters, so uh.. they are doing it for power.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by blinx9900 &raquo;</TD></TR><TR><TD CLASS="quote">i think you should look more at airflow charecteristices, most mushroom filters incorporate a velocity stack, like the hks and greddy ones (some cone filters do also like apexi), aside from that, dont think too much im sure most good filters are within 1hp of each other.</TD></TR></TABLE>

Thats true there are other filters besides mushroom filters with velocity stacks built inside them but most mushroom filters have foamish element which have very very poor filtration. The cone filters with the cotton gauze elements have very good filtration and even when they are very dirty they still flow like they are brand new. All cone filter's aren't created equal. Stuff like lenght, diameter, pleat size and count, layers of cotton gauze, angle of velocity stack etc. have a factor on how much a filter can flow so there could be more than 1 hp difference from each other...sorry but I'm talking like I'm Injen Technology's Engineer.

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by mmuller &raquo;</TD></TR><TR><TD CLASS="quote">as sayd above; look for a velocity stack on the filter. that makes a difference</TD></TR></TABLE>

This might sound stupid but it's really true. We do tons of test on different filter designs and velocity stacks do help smooth out turbulence when tested on a flow bench.

 

Whitfield racing will be doing a test on different filters. So far it's:

Racing Sport Akimoto's velocity stack + filter
bPi VS with K&N Filter
Apexi VS/filter

https://honda-tech.com/zerothread?id=1804634

 

i think the shroom look a little ricey.. get a HIGH qualty cone...

 

it seriously astounds me that so much time and effort is put into something as simple as an air filter What are some recommended buys?

 

I have a HKS mushroom on my 180sx and it flows great but it does get very dirty very fast. The only difference in the other filters is in how many layers of filter material like in a good quality filter they most of the time run 4 layers but in a cheaper knock off (apc/ractive etc) they only use 2 layers.

Ralphie

 

the number of layers in the filter i would assume helps in the filtration process, but wouldnt that impede airflow?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by xjreazyx &raquo;</TD></TR><TR><TD CLASS="quote">the number of layers in the filter i would assume helps in the filtration process, but wouldnt that impede airflow?</TD></TR></TABLE>

Believe it or not and it might sound a little weird but the higher the pleat count (layers) the higher the flow rate and your right, better filtration.