Good, cheap power gains for 4.6?
#1
#5
The K&N or any oiled air filters have proven problematical on these engines. The oil makes its way to the Mass Air Flow sensor and causes trouble.
As was mentioned, cheap is not the way to go. Even the programmers and exhaust systems will give only incremental gains.
The 4.6 makes reasonably good power and if properly maintained will last a long time. It is very common to start having problems with an engine when you start tinkering with it. If it ain't broke, don't fix it.
Good luck,
Doc
As was mentioned, cheap is not the way to go. Even the programmers and exhaust systems will give only incremental gains.
The 4.6 makes reasonably good power and if properly maintained will last a long time. It is very common to start having problems with an engine when you start tinkering with it. If it ain't broke, don't fix it.
Good luck,
Doc
#6
#7
The K&N or any oiled air filters have proven problematical on these engines.
It is very common to start having problems with an engine when you start tinkering with it. If it ain't broke, don't fix it.
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#8
There are other threads on the oiled cotton gauze filter issue. As a user of K&N filters for many years on many different vehicles with no problems whatsoever, I refuse to accept the criticism. My '97 5.4L Expedition was sold a few months ago with 107,000 miles. It had a drop-in K&N since the first week I took it home from the dealer.
Over oiling the filter can theoretically foul the MAF, but under normal around town or highway driving conditions you don't need to oil the thing for many years and if you follow the instructions, it won't get over oiled.
Now, having said that, these filters, including the AirCharger type are not going to produce much extra benefit unless you also go with a good free-flow cat-back exhaust and a programmer. The cone-type filters will make a LOT, read this LOT of noise and make you think it is producing more power. It is highly unlikely that if you do a before and after with a stop watch or an accelerometer like the G-Tech Pro Competition, that you will gain even one tenth of a second in the quarter mile with just a filter change.
I like the K&N, not because it produces more power, but because I drive in very dirty, dusty conditions and these filters work better when caked with dirt than paper filters do.
Over oiling the filter can theoretically foul the MAF, but under normal around town or highway driving conditions you don't need to oil the thing for many years and if you follow the instructions, it won't get over oiled.
Now, having said that, these filters, including the AirCharger type are not going to produce much extra benefit unless you also go with a good free-flow cat-back exhaust and a programmer. The cone-type filters will make a LOT, read this LOT of noise and make you think it is producing more power. It is highly unlikely that if you do a before and after with a stop watch or an accelerometer like the G-Tech Pro Competition, that you will gain even one tenth of a second in the quarter mile with just a filter change.
I like the K&N, not because it produces more power, but because I drive in very dirty, dusty conditions and these filters work better when caked with dirt than paper filters do.
Last edited by Armada; 01-31-2005 at 10:05 PM.
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