K&N filters = CEL
Super Member
Joined: Jun 2012
Posts: 919
Likes: 116
2009 c63
Damn... I got in there and he had k&n filters. I just cleaner them and put them back... If I didn't oil them is that bad?... Should I go back in? I'll return the Weistecs...
Senior Member
Joined: Oct 2011
Posts: 419
Likes: 3
From: Southern Maryland USA
06 E55 AMG, 13 C63 AMG
I would not run K&N filters in my lawn mower.
I think they are the worst filters on the planet. Over the years I have seen nothing but problems caused by the oil blowing off the filters and coating everything in the intake track. Then all the holes in the filters let dust through and it sticks to the oil all down the intake. Coast the MAF sensors and causes calibration errors.
Don't think there are holes in the filters?? Just hold it up the Sun and look at the thousands of holes in the filter much larger than the dust particles you are trying to filter out.
G
I think they are the worst filters on the planet. Over the years I have seen nothing but problems caused by the oil blowing off the filters and coating everything in the intake track. Then all the holes in the filters let dust through and it sticks to the oil all down the intake. Coast the MAF sensors and causes calibration errors.
Don't think there are holes in the filters?? Just hold it up the Sun and look at the thousands of holes in the filter much larger than the dust particles you are trying to filter out.
G
Senior Member
Joined: Jan 2014
Posts: 267
Likes: 0
2010 C63 P30
Anyone have troubles at dealers for warranty with a drop in filter such as Weistec or AFE?
Also what do you guys prefer? I can get AFE for about $50-60 cheaper shipped. But I dont want to cheap out on a bad quality product.
Also what do you guys prefer? I can get AFE for about $50-60 cheaper shipped. But I dont want to cheap out on a bad quality product.
Last edited by AMG Boost; Apr 16, 2014 at 11:42 PM.
Super Member
Joined: Jun 2012
Posts: 919
Likes: 116
2009 c63
Is the weistec a finer membrane because it is dry?
Senior Member
Joined: Feb 2005
Posts: 252
Likes: 1
From: Ashburn, VA
C63 ///AMG P30
Banned
Joined: Jul 2013
Posts: 2,811
Likes: 7
C63 AMG
The ONLY time a filter may give a few HP is at wide open throttle
The rest of the time the throttle plates diff press is much higher than the filters
If one filter has more dp drop than another that is negated by a few more degrees of opening
How often are you at sustained 100% throttle?
For a given power level the intake tract dp is the same although the proportions filter vs tb vs duct friction etc vary
The filter may give a bit more mpg due to lower pumping losses
May. But very little
Oem paper for me
Changed regularly
The rest of the time the throttle plates diff press is much higher than the filters
If one filter has more dp drop than another that is negated by a few more degrees of opening
How often are you at sustained 100% throttle?
For a given power level the intake tract dp is the same although the proportions filter vs tb vs duct friction etc vary
The filter may give a bit more mpg due to lower pumping losses
May. But very little
Oem paper for me
Changed regularly
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Senior Member
Joined: Jan 2014
Posts: 267
Likes: 0
2010 C63 P30
The ONLY time a filter may give a few HP is at wide open throttle
The rest of the time the throttle plates diff press is much higher than the filters
If one filter has more dp drop than another that is negated by a few more degrees of opening
How often are you at sustained 100% throttle?
For a given power level the intake tract dp is the same although the proportions filter vs tb vs duct friction etc vary
The filter may give a bit more mpg due to lower pumping losses
May. But very little
Oem paper for me
Changed regularly
The rest of the time the throttle plates diff press is much higher than the filters
If one filter has more dp drop than another that is negated by a few more degrees of opening
How often are you at sustained 100% throttle?
For a given power level the intake tract dp is the same although the proportions filter vs tb vs duct friction etc vary
The filter may give a bit more mpg due to lower pumping losses
May. But very little
Oem paper for me
Changed regularly
Agree here.
I want the extra flow at WOT
Ya i know it will only be like 5-8hp lol. nothing really. Also yes i agree K&N sucks. Dry filters are way better and thats all I would ever use.
