K&N cold air intake milage diference frome stock?

[rangerhjs]

I have a 2000 XLT Ford Ranger 3.0L extended cab 2WD with an automatic transmission. I would like to put a K&N cold air intake on it. I have heard it will help with gas mileage. I would like to know if anyone has put a K&N cold air intake on a similair truck to mine and if you have how much has your mileage increased? And what was your stock mileage?

 

[Sasquatch_Ryda]

Just plain no. And air filter is NOT going to improve mileage in any way other than lightening your wallet.

 

[Froggmann]

Your stock intake setup is a cold air intake. Don't waste your money on the K&N kit. If you want to do any intake mods, remove the stock air silencer and install a K&N panel filter in the stock air box. I doubt it will improve fuel economy, however you might pick up 2-3 horsepower.

 

[03ranger30]

It did nothing at all for me

 

[Airmaster]

Not enough of an increase for the money. Don't install a K and N for power increase and mileage. Buy it for throttle response, that's the only place it made a difference. Even at that it isn't really worth it...

Buy it if you want to, that's what I did. I mean, I still like it but it's nothing spectacular.

 

[jrpdash9]

Run a specter filter they r thing same thing but only like $21. I put one in mine. I also moded my maf housing so I don't have a true test but it does make a difference

 

[--weezl--]

do not buy k&n filters!

first, when they are brand new (or freshly cleaned) they DO flow more air than a stock paper filter, however, the restriction on the intake is not enough to starve the truck's engine to the point where you will have a noticeable difference in fuel economy, power, or throttle response... you will typically not even notice a difference, while driving, between a DIRTY paper filter and no filter... trust me, i ran with no filter on my mustang for years, after not changing mine for the longest time...

second, while it does flow more air, it filters significantly less than a paper filter (don't believe me, ask K&N, they publicise that they should be dirty to work properly)
the point at which the k&n flows the same as a paper filter, is not too long after it is cleaned, and is at a point where the filter still looks perfectly clean. the point where it filters the same, is when the filter is significantly dirty, and at this point flows much less than a paper filter.

third, if you were to cut open the filter, and stretch the pleated material out so it is a flat piece of fabric, and do the same to a paper filter for the same vehicle, you will find that the K&N actually has less than half of the filter media that the paper filter has, thus creating less surface area for the air entering the engine to pass through, and more restriction

fourth, there have been several independant tests conducted on many brands of filters, including paper, foam, oil bath and virtually any other style you can think of... in the test that i most recently saw, they used a panel style filter that was available from all manufactures. they tested the filters by running a control of no filter, and finding the restriction at a certain air speed, this was deemed to be "no restriction" they then installed each filter individually, and started the test, while testing, they introduced a controlled amount of dust, measuring how much was released into the air, and how much passed through. the test was ended when the filter reached 80% restriction. the K&N filter let significantly more particulate through the filter than the mean data from the paper filters (average of all filters) and additionally reached the 80% restriction mark sooner than the average paper filter. in this test, the K&N was not the worst filter tested, but scored in the bottom 20% IIRC. the top performer was a paper filter, and IIRC, it was AC Delco brand. i will see if i can dig up the link to the info i am remembering this from

moral of the story... K&N suck, it's a good mod for ricers who want to put stickers on their car and have a flashy engine with shiny metal parts...

you want something that works as a "cold air intake" better than the stock? install an intake tube that insulates, to keep the engine heat out of the intake air, this will give you a denser charge, and theoretically will help with economy, and power, though in practice, i doubt you will see any measurable gains...