K&n Air Filter
#2
Re: K&n Air Filter
This is funny because I just asked in the thread titled 'How to remove the Air Filter' if there were any aftermarket filters available...LOL
What is the cost of the K&N filter? $40 - $50?
What is the cost of the K&N filter? $40 - $50?
#3
Re: K&n Air Filter
I just went over 15k so it was time to replace the air filter. Bought the K&N on EBay for $31 + $10 shipping. Will tell you after a couple tanks (I go thru a tank a week) if there has been any improvement in power or FE.
#4
Re: K&n Air Filter
I'm really interested to know about this, too. In my 2006 Jeep Grand Cherokee Overland that I traded-in yesterday on my new TCH, I used a K&N air filter. It almost instantly took me from an average of 15 MPG to 17 MPG (hey, two MPG on a Jeep is a HUGE increase), so I'm really curious about how the TCH would behave with one.
#6
Re: K&n Air Filter
33-2260. The K&N site specifically says it fits a 2007 TCH. See http://www.knfilters.com/search/prod...x?Prod=33-2260
#8
Re: K&n Air Filter
FWIW - We dyno (Dedicated Superflow 901 Engine Dyno - not Chassis Dyno) tested the K&N filter against a standard paper element filter on a 650 HP V8. The dimensions of the filter were 14" diameter - 4" tall. There was absolutely no difference in HP or BSFC (fuel consumption).
All else equal (factory filter is of sufficient flow capacity and is in good condition) -
I think that we may modify our driving styles to prove to ourselves that the aftermarket filter made a difference in FE / HP.
I also believe that controlled studies (where the driver does no know what filter is in the vehicle) will bear proof..
All that said -
There is a GREEN side to the story here. The K&N is re-useable after it has been properly washed, dried and re-oiled. That means less cr@p headed to the landfill.
All else equal (factory filter is of sufficient flow capacity and is in good condition) -
I think that we may modify our driving styles to prove to ourselves that the aftermarket filter made a difference in FE / HP.
I also believe that controlled studies (where the driver does no know what filter is in the vehicle) will bear proof..
All that said -
There is a GREEN side to the story here. The K&N is re-useable after it has been properly washed, dried and re-oiled. That means less cr@p headed to the landfill.
#9
Re: K&n Air Filter
FWIW - We dyno (Dedicated Superflow 901 Engine Dyno - not Chassis Dyno) tested the K&N filter against a standard paper element filter on a 650 HP V8. The dimensions of the filter were 14" diameter - 4" tall. There was absolutely no difference in HP or BSFC (fuel consumption).
All else equal (factory filter is of sufficient flow capacity and is in good condition) -
I think that we may modify our driving styles to prove to ourselves that the aftermarket filter made a difference in FE / HP.
I also believe that controlled studies (where the driver does no know what filter is in the vehicle) will bear proof..
All that said -
There is a GREEN side to the story here. The K&N is re-useable after it has been properly washed, dried and re-oiled. That means less cr@p headed to the landfill.
All else equal (factory filter is of sufficient flow capacity and is in good condition) -
I think that we may modify our driving styles to prove to ourselves that the aftermarket filter made a difference in FE / HP.
I also believe that controlled studies (where the driver does no know what filter is in the vehicle) will bear proof..
All that said -
There is a GREEN side to the story here. The K&N is re-useable after it has been properly washed, dried and re-oiled. That means less cr@p headed to the landfill.
What he said....
#10
Re: K&n Air Filter - Results
Well, regardless of the dyno results, I bought one and do so for all my vehicles.
What I did was to install it without telling my wife, who primarily drives the TCH. This was so she wouldn't try to alter her driving habits. My observations were about a 1mpg better economy after two tanks now. What I don't know is what effect if any it would have if I tried to get better mileage over what the technique would yield alone. Give that current fuel prices rising my cost/benefit says it could be worth it especially given the fact that this is a reusable filter (saves $$).
What I did was to install it without telling my wife, who primarily drives the TCH. This was so she wouldn't try to alter her driving habits. My observations were about a 1mpg better economy after two tanks now. What I don't know is what effect if any it would have if I tried to get better mileage over what the technique would yield alone. Give that current fuel prices rising my cost/benefit says it could be worth it especially given the fact that this is a reusable filter (saves $$).
Last edited by TXVTX; 04-07-2007 at 08:21 AM.