K&N Filter revisited..
hxgaser
11-08-2005, 02:53 PM
I know that K&N has been around for long time and their reputation is surpassed by almost no one. But did anyone ever run an actual dyno on before and after K&N filter installation? Obviously, CAI of some sort will definitely better than the stock... but how about stock drop-in replacement?
Well, I have been doing some research and no one seems to have this info. Also some claim that better airflow usually is result of larger openings, meaning K&N filters technically allow bigger particles to pass through the intake. In addition, some say oil can possibly damage MAF sensor on your upper intake... Is few horsepower gain worth all this? Or are these statements just BS. :sly: Any input, expecially scientific response would be greatly appreciated.
Well, I have been doing some research and no one seems to have this info. Also some claim that better airflow usually is result of larger openings, meaning K&N filters technically allow bigger particles to pass through the intake. In addition, some say oil can possibly damage MAF sensor on your upper intake... Is few horsepower gain worth all this? Or are these statements just BS. :sly: Any input, expecially scientific response would be greatly appreciated.
civickiller
11-08-2005, 04:16 PM
well hondas dont use a MAF, they use a MAP sensor
hxgaser
11-08-2005, 08:16 PM
well hondas dont use a MAF, they use a MAP sensor
Mass Air Flow, Mass Air Pressure... big difference... :disappoin
Mass Air Flow, Mass Air Pressure... big difference... :disappoin
CivicSpoon
11-08-2005, 08:42 PM
Mass Air Flow, Mass Air Pressure... big difference... :disappoin
Actually, yes there is a big difference of how each works. A filter does exactly what the name says, it filters the air. So don't worry about dirt or dust getting into your engine more with an aftermarket filter. I've never seen or heard of any negative effects of putting in a new filter that's not OEM. As for proof that you'll gain any performance... never seen a dyno sheet myself.
Actually, yes there is a big difference of how each works. A filter does exactly what the name says, it filters the air. So don't worry about dirt or dust getting into your engine more with an aftermarket filter. I've never seen or heard of any negative effects of putting in a new filter that's not OEM. As for proof that you'll gain any performance... never seen a dyno sheet myself.
superbluecivicsi
11-08-2005, 08:51 PM
actually,
the MAP sensor measures the difference between the pressure inside the intake mani as to outside the intake mani as opposed to the MAF sensor measuring airflow entering the motor as to let the ecu know the amount to control AFRs. the main difference is that MAP sensor measures pressure as opposed to the MAF measuring actual air flow. two very different systems.
also, the MAF system focuses on taking measurements for control of the AFRs, as the MAP uses pressure for control of AFRs and timing.
the MAP sensor measures the difference between the pressure inside the intake mani as to outside the intake mani as opposed to the MAF sensor measuring airflow entering the motor as to let the ecu know the amount to control AFRs. the main difference is that MAP sensor measures pressure as opposed to the MAF measuring actual air flow. two very different systems.
also, the MAF system focuses on taking measurements for control of the AFRs, as the MAP uses pressure for control of AFRs and timing.
hxgaser
11-08-2005, 10:18 PM
actually,
the MAP sensor measures the difference between the pressure inside the intake mani as to outside the intake mani as opposed to the MAF sensor measuring airflow entering the motor as to let the ecu know the amount to control AFRs. the main difference is that MAP sensor measures pressure as opposed to the MAF measuring actual air flow. two very different systems.
also, the MAF system focuses on taking measurements for control of the AFRs, as the MAP uses pressure for control of AFRs and timing.
Hey, learn something new everyday. I am sorry "Civickiller". I didn't know what I was talking about.
Anyways, I did some more surfing and found this site.
http://www.bobistheoilguy.com/airfilter/airtest1.htm
It does confirm that K&N filter does let in more particles than stock or paper type air filter. Hence more air flow and slight power gain. But it seems that amount of particles that are getting bypassed is not significant to cause any major damage. Although, some still says the oil can mess up a sensor of any type... Any real world experience out there?
the MAP sensor measures the difference between the pressure inside the intake mani as to outside the intake mani as opposed to the MAF sensor measuring airflow entering the motor as to let the ecu know the amount to control AFRs. the main difference is that MAP sensor measures pressure as opposed to the MAF measuring actual air flow. two very different systems.
also, the MAF system focuses on taking measurements for control of the AFRs, as the MAP uses pressure for control of AFRs and timing.
Hey, learn something new everyday. I am sorry "Civickiller". I didn't know what I was talking about.
Anyways, I did some more surfing and found this site.
http://www.bobistheoilguy.com/airfilter/airtest1.htm
It does confirm that K&N filter does let in more particles than stock or paper type air filter. Hence more air flow and slight power gain. But it seems that amount of particles that are getting bypassed is not significant to cause any major damage. Although, some still says the oil can mess up a sensor of any type... Any real world experience out there?
civickiller
11-08-2005, 10:31 PM
i hear that the oils can mess up a MAF sensor but not a big deal with hondas since we dont run them
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