K&N Air Filters - Anyone have any comments on these?

Tegger wrote:
> jim beam > wrote in
> t:
>
>> Tegger wrote:
>>> jim beam > wrote in
>>> t:
>>>
>>>> Tegger wrote:
>>>>> jim beam > wrote in
>>>>> :
>>>>>
>>>>>> Tegger wrote:
>>>>>>> K&N filters also are susceptible to accidental over-oiling, which
>>>>>>> can damage the mass-airflow sensor, a critical part of your
>>>>>>> emissions control system.
>>>>>> that may be true of other vehicles, but not honda. honda uses
>>>>>> pressure sensors and a programed flow map, not a mass sensor -
>>>>>> insensitive to this kind of issue.
>>>>>
>>>>> Some Accords do use MAFs. I ran into this one before so I checked.
>>>>>
>>>> which ones?
>>>>
>>>
>>> Like the '03 and up SULEV ones.
>>>
>>>
>> i looked on majestic's site and see only map sensors - through 06, i4
>> & v6. map is manifold air pressure - not an air mass.
>>
>
>
> http://corporate.honda.com/press/art...=2003112035861
>
ok, i found it - it's in the air filter assembly, not the manifold or
throttle body. kind of hard to believe that maf is more sensitive than
map, but hey.

Okay so what is the verdict? I have a 2005 Accord Ex 4-cyl and its auto. Its
not a SULEV, its only an LEV. Personally I really don't see how having more
free air flow is going to make that much difference and I cant imagine that
it would damage anything, but I'm not a mechanic just a guy who likes
hondas.



>>>>>> Some Accords do use MAFs. I ran into this one before so I checked.
>>>>>>
>>>>> which ones?
>>>>>
>>>>
>>>> Like the '03 and up SULEV ones.
>>>>
>>>>
>>> i looked on majestic's site and see only map sensors - through 06, i4
>>> & v6. map is manifold air pressure - not an air mass.
>>>
>>
>>
>> http://corporate.honda.com/press/art...=2003112035861
>>
> ok, i found it - it's in the air filter assembly, not the manifold or
> throttle body. kind of hard to believe that maf is more sensitive than
> map, but hey.

alfred wrote:
> Okay so what is the verdict? I have a 2005 Accord Ex 4-cyl and its auto. Its
> not a SULEV, its only an LEV. Personally I really don't see how having more
> free air flow is going to make that much difference and I cant imagine that
> it would damage anything, but I'm not a mechanic just a guy who likes
> hondas.

it's not the air-flow, it's the grit-flow that accompanies it. reduced
filter efficacy [marginally] improves airflow. is that what you want?
because that's what you'll get - that's how a k&n filter works.

>
>
>
>>>>>>> Some Accords do use MAFs. I ran into this one before so I checked.
>>>>>>>
>>>>>> which ones?
>>>>>>
>>>>> Like the '03 and up SULEV ones.
>>>>>
>>>>>
>>>> i looked on majestic's site and see only map sensors - through 06, i4
>>>> & v6. map is manifold air pressure - not an air mass.
>>>>
>>>
>>> http://corporate.honda.com/press/art...=2003112035861
>>>
>> ok, i found it - it's in the air filter assembly, not the manifold or
>> throttle body. kind of hard to believe that maf is more sensitive than
>> map, but hey.
>
>

I'm going to keep this car another 9 and a half months, and I am just
looking for some performance as well as getting a new filter. As long as the
car is going to be okay, I would like to use the K&N filter. I am planning
on the Civic Si at the end of this lease in March 2008. The man at the Auto
Zone who sold me the filter seems to think the filter is a great one and
that I would notice a big improvement.


>
> it's not the air-flow, it's the grit-flow that accompanies it. reduced
> filter efficacy [marginally] improves airflow. is that what you want?
> because that's what you'll get - that's how a k&n filter works.
>

On Thu, 24 May 2007 02:41:47 GMT, alfred > wrote:


>Okay so what is the verdict? I have a 2005 Accord Ex 4-cyl and its auto. Its
>not a SULEV, its only an LEV. Personally I really don't see how having more
>free air flow is going to make that much difference and I cant imagine that
>it would damage anything, but I'm not a mechanic just a guy who likes
>hondas.

The damage is not caused by having a free flowing air filter.
The damage is caused by having an air filter that lets abrasive particles
get past it. Leave it stock; it just isn't worth it.

alfred wrote:
> I'm going to keep this car another 9 and a half months, and I am just
> looking for some performance as well as getting a new filter. As long as the
> car is going to be okay, I would like to use the K&N filter. I am planning
> on the Civic Si at the end of this lease in March 2008. The man at the Auto
> Zone who sold me the filter seems to think the filter is a great one and
> that I would notice a big improvement.

er, are you going to declare this when you sell the vehicle???

and you'll notice an improvement with /any/ clean new filter!
seriously, the airflow pressure difference is minuscule. the airborne
particle load is more than double.

>
>
>> it's not the air-flow, it's the grit-flow that accompanies it. reduced
>> filter efficacy [marginally] improves airflow. is that what you want?
>> because that's what you'll get - that's how a k&n filter works.
>>
>
>

On Thu, 24 May 2007 03:04:36 GMT, alfred > wrote:


>I'm going to keep this car another 9 and a half months, and I am just
>looking for some performance as well as getting a new filter. As long as the
>car is going to be okay, I would like to use the K&N filter. I am planning
>on the Civic Si at the end of this lease in March 2008. The man at the Auto
>Zone who sold me the filter seems to think the filter is a great one and
>that I would notice a big improvement.

He was lying to you. The improvement is about 2% tops, not enough to
notice.

Been running a K&N Filtercharger in my 98 civic since 70000kms. I now have
over 275000kms, and compression is still 190 on all 4 cylinders.

I also drive on a TONNE of gravel.

t

jim beam wrote:
>> I just bought a K&N Air Filter for my 2005 Accord EX 4 cyl, and I didnt have
>> it put in yet, but I am soon when I have the oil and filter changed also. It
>> was $35.99 but I am told it can increase HP and make the car run alot better
>> with much better performance and better mpg. There are 33,500 miles on my
>> car and it was due for an air filter, so I wanted to go with one of the
>> best.
>
>don't put it in, just use honda filters. k&n filters let through
>significantly more grit than any other filter - this will decrease your
>engine life accordingly. they're fine for racers as they don't expect
>long engine life anyway, but it's unlikely you'll see much difference in
>performance compared with a clean factory filter unless you do extensive
>engine work. with factory filtration, you can get 300k+ miles out of
>that motor. google is your friend - there's real-life testing reports
>out there on filtration performance. there was a link from tegger.com,
>but it's broken.
>
>> Also I put an STP fuel system cleaner in the tank, and I was wondering if
>> anyone had any thoughts on these also? I hear that they treat up to 21
>> gallons and they are okay to use ever 6 mo or so. I usually use a fuel
>> injector cleaner, but this is a little new to me.
>
>my, you /are/ susceptible to advertising aren't you! it's just a
>solvent/detergent, just like any other fuel component cleaner. use is a
>good idea. paying extra for differentiation that doesn't exist is not.

--
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loewent via CarKB.com wrote:
> Been running a K&N Filtercharger in my 98 civic since 70000kms. I now have
> over 275000kms, and compression is still 190 on all 4 cylinders.

the chance of you having identical compression on all 4 at that mileage
is slim to zero. i therefore have a hard time buying the rest of the
story - particularly as particle ingestion/engine wear is a well known
relationship.

>
> I also drive on a TONNE of gravel.
>
> t
>
> jim beam wrote:
>>> I just bought a K&N Air Filter for my 2005 Accord EX 4 cyl, and I didnt have
>>> it put in yet, but I am soon when I have the oil and filter changed also. It
>>> was $35.99 but I am told it can increase HP and make the car run alot better
>>> with much better performance and better mpg. There are 33,500 miles on my
>>> car and it was due for an air filter, so I wanted to go with one of the
>>> best.
>> don't put it in, just use honda filters. k&n filters let through
>> significantly more grit than any other filter - this will decrease your
>> engine life accordingly. they're fine for racers as they don't expect
>> long engine life anyway, but it's unlikely you'll see much difference in
>> performance compared with a clean factory filter unless you do extensive
>> engine work. with factory filtration, you can get 300k+ miles out of
>> that motor. google is your friend - there's real-life testing reports
>> out there on filtration performance. there was a link from tegger.com,
>> but it's broken.
>>
>>> Also I put an STP fuel system cleaner in the tank, and I was wondering if
>>> anyone had any thoughts on these also? I hear that they treat up to 21
>>> gallons and they are okay to use ever 6 mo or so. I usually use a fuel
>>> injector cleaner, but this is a little new to me.
>> my, you /are/ susceptible to advertising aren't you! it's just a
>> solvent/detergent, just like any other fuel component cleaner. use is a
>> good idea. paying extra for differentiation that doesn't exist is not.
>

On Thu, 24 May 2007 03:48:22 GMT, loewent via CarKB.com <u10197@uwe> wrote:


>Been running a K&N Filtercharger in my 98 civic since 70000kms. I now have
>over 275000kms, and compression is still 190 on all 4 cylinders.

>I also drive on a TONNE of gravel.

So
****ing
What?

A statististical sample of one is less than worthless.

"Ah been running on no air filter at all since I pulled the car out of a lake
twenty years ago and I still have perfect compression on all 4 cylinders. "
Makes you want to run out an emulate the idiot, doesn't it!