K&N filter, is it killing the MAF on toyota?
- Thread starter DocLX450
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NLXTACY
Wits' End
i dont think you are going to find too much of a fan base for K&N here.
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There is good reasoning behind it:
Over oiled gauze type filters have caused MAF damage. Many tests have shown that K&N filters allow more dirt into the motor, most have shown a slight increase in flow per square inch of surface area when clean.
The stock Toyota cyclonic air cleaner assembly is very well designed to handle debris, it's properly sized for the motor and pulls air from the coolest spot under the hood. The stock Toyota filter has over three times the filter area when compared to the K&N. They are washable, reusable and well proven. I have never seen any reliable test that shows any measurable benefit from an after market filter or assembly. So see no reason to run anything but a stock filter?
I don't know why anyone would consider a K&N on a Cruiser. How many times do you hear about excessive engine wear issues on these or early failures? There is no reason to try and fix something that isn't a problem.
What Tools said.
my 96 came with a K&N, replaced it with a OEM filter, no performance change at all. did some math in a previous thread, found that due to the K&N's small surface area compared to stock it may actually cause more resistance than OEM while letting more dirt in.
my 96 came with a K&N, replaced it with a OEM filter, no performance change at all. did some math in a previous thread, found that due to the K&N's small surface area compared to stock it may actually cause more resistance than OEM while letting more dirt in.
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NLXTACY
Wits' End
I think the only two modifications to the intake that provide more/cooler air are a snorkel and Landtank's MAF housing (95-97). I guess a third would be forced induction, but it's not for everyone
what about porting the Throttle Body from RC Engineering? Do they still do that/ I did the TB on my 4Runner and wow what a difference!
Everything helps, but the real restriction on the intake side if the MAF sensor. It takes the 3" tube and reduces the flow down to something similar to 2" because of the size of the sensor in that housing.
x3 on the stock filter. no oil more surface area and washable. Seems like a good choice to me. The perfrmance gains claimed will probably not be noticeable on a truck that weighs around 6k lbs. I'm running stock. I would be willing to look at the dry filters however and run a snorkel.
NicksFJ40
Doesn’t read post longer than two paragraphs.
How would you go about washing the stock filter?
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There is a sticker on them with directions, I kinda follow them.
I first blow most of the dust out, soak it in a bucket of water, agitating it up and down occasionally, then rinse with the hose until it's clean and set in the sun to dry. The biggest deal is they take a long time to dry, so I have two and rotate them.
Cool! I learned something new today. Thanks Tools.
There is a large and small OEM filter right? Which one to choose and why?
There are large and small oil filters, but only one air filter.
I don't know about damage, but oil and the grime that it attracts in your MAF sensor. Ran one in my tacoma with the cold air intake for over 100,000 miles with no noticeable issues (haven't run my used oil through a mass spectrometer). I simply blew some CRC electronics cleaner through it every once and a while.
Bracing for impact.......
Bracing for impact.......
Performance isn't worth the cost, plus to keep a K&N working to it's peak you need to clean and re-oil every 10k or less (recommended after any high dust driving) if you don't you void that million mile warranty too.
OEM is probably the best, but I just got with the $8 Advance specials. Feels, looks, performs the same as the OEM (IMO), a fraction of the cost, and if you screw it up just throw it out and get a new one.
OEM is probably the best, but I just got with the $8 Advance specials. Feels, looks, performs the same as the OEM (IMO), a fraction of the cost, and if you screw it up just throw it out and get a new one.
More would only help if more is needed.
Do you know how make intake flow is needed throughout the RPM range and do you know for a fact that the stock/OEM doesn't supply that ?
Fred
Interesting info from K&N about the MAF. They don't seem to cover offroad use in this article. I switched back to OEM after seeing the amount of mud that went through the filter into my intake. Can anyone point me towards some documented research and test that shows how it effects the MAF?
K&N Response to Mass Air Flow Sensor Concerns
K&N Response to Mass Air Flow Sensor Concerns
