Aftermarket air filter necessary?
#27
Dam good point Brettus. In this case we can not take one point or fact and run with it. Fact is all filters let dirt in when they are sucking in air, thats why we change them and change our oil to keep the deposits from building up. Be it dirt or metals. On thing I have noticed is; even with all the dirt in Vegass the stock filter and box only needed to be cleaned about every 6 months. My K&Nv2 intake needs to be charged about every 3 months. How ever my oil is still dirty as fruck when I change it lol
#31
Super Moderator
Yeah, like which engine oil to use..
#33
There is a good link on the forum to a Construction owner who tested KN filter verses stcok filters on Catapillar dump trucks bull dozers ect..
His results were K&N you die, stock filter for the win!
More power but more dirt in the engine lead to failures.
there is always a compromise.
His results were K&N you die, stock filter for the win!
More power but more dirt in the engine lead to failures.
there is always a compromise.
#35
SARX Legend
Thread Starter
iTrader: (46)
Okay, check out this article out. Found it in another thread.
http://www.nicoclub.com/articles.php?id=180100
http://www.nicoclub.com/articles.php?id=180100
#39
Registered
But, if not that, what about MAF and SSF issues?
#42
Registered Zoom Zoomer
iTrader: (2)
In my research and experience the K&N does pass more air, but also better filters thanks to its material, construction and thin layer of oil that naturally attracts more airborne contaminants. Of course you need to clean it periodically. There's not enough oil to pass on to the MAF if recharged properly - as Jedi said "less is more."
#43
Registered
iTrader: (3)
no but i am making over 300hp to the wheels with a pull through fi system and i use a paper filter. I dont have the oem airbox but i do have an aem paper filter.
If you think a paper filter is restrictive--just increase the size over oem a little.
I will never run a K&N again with a rotary engine.
If you think a paper filter is restrictive--just increase the size over oem a little.
I will never run a K&N again with a rotary engine.
#45
I want to by a induction filter for my Rex I don't want to pay to much green filter works out cheaper the k&n sounds nice but to expensive where's the cheapest place to get one I would consider a secondhand one as well need help....
#46
Extraordinary Engineering
Does anyone have any independent data showing the real world difference between the stock filter replacements vs. the K&N?
I seriously doubt it makes any significant difference in power. Maybe with other supporting mods?
My only data point was with Cobb datalogs between a dirty stock filter and a replacement filter. No significant difference in airflow at all
Of course my intake had other issues.
I seriously doubt it makes any significant difference in power. Maybe with other supporting mods?
My only data point was with Cobb datalogs between a dirty stock filter and a replacement filter. No significant difference in airflow at all
Of course my intake had other issues.
Last edited by DarkBrew; 10-18-2010 at 08:01 PM.
#47
the giant tastetickles
Join Date: Sep 2005
Location: in the basement
Posts: 2,758
Likes: 0
Received 0 Likes
on
0 Posts
#48
SARX Legend
Thread Starter
iTrader: (46)
Is or did? Thanks for the link I wish they had tested those aftermarket filters against a good OEM paper filter. The K&N may have done okay in that test but I doubt it would be better than an OEM paper filter.
Last edited by 9krpmrx8; 10-19-2010 at 10:46 AM.
#49
Super Moderator
This is what I don't understand with some of you guys, Mazda spent a fortune and time experimenting with Filter material, Box, etc...the compete INTAKE System in fact.
Everyone who "thought" they knew better (including Racing 'Experts') have reverted back to the OEM Filter...as it is the best filter.
So if all these cone and dome shaped filters are "so good", why did Mazda not go down that path?
They could have saved a lot of money..
But hey..what do they know.
Everyone who "thought" they knew better (including Racing 'Experts') have reverted back to the OEM Filter...as it is the best filter.
So if all these cone and dome shaped filters are "so good", why did Mazda not go down that path?
They could have saved a lot of money..
But hey..what do they know.
#50
SARX Legend
Thread Starter
iTrader: (46)
This is what I don't understand with some of you guys, Mazda spent a fortune and time experimenting with Filter material, Box, etc...the compete INTAKE System in fact.
Everyone who "thought" they knew better (including Racing 'Experts') have reverted back to the OEM Filter...as it is the best filter.
So if all these cone and dome shaped filters are "so good", why did Mazda not go down that path?
They could have saved a lot of money..
But hey..what do they know.
Everyone who "thought" they knew better (including Racing 'Experts') have reverted back to the OEM Filter...as it is the best filter.
So if all these cone and dome shaped filters are "so good", why did Mazda not go down that path?
They could have saved a lot of money..
But hey..what do they know.