chrs1313

iTrader: (24)

On monday at work i will run some pressure drop tests on both a K&N element and a stock Paper element...this will be the true test of which is more restrictive and by how much...

going to do the flow at various CFM...

probably 100-700CFM...

REFERENCE: For my cam only at WOT the max mass flow i saw at my throttle body was 330g/s using the density of air you get around 591CFM...

make some guesses i am going to use pressure of inches of water column just so it is more accurate...

Ref again: around 28" H2O is 1 PSI

I am going to guess at 600 CFM the K&N will have around 3-4" less pressure drop...

Hopefully we will be able to quantify these results into rear world hp numbers of some sort...

Carter01

iTrader: (11)

Sounds like a good test, let us know what type paper filter you decide to use.

FASTFATBOY

iTrader: (23)

My car showed no gains with the K&N taken out of the car.

chrs1313

iTrader: (24)

so the pressure drop should be minimal then

James Montigny

iTrader: (13)

What? the pingpong ball demo in every parts store in the country isn't good enough for ya? LOL

chrs1313

iTrader: (24)

haha yeah but this will be an exact flow for our specific engines...

gator's 99TA

iTrader: (2)

no gains with KN filter vs no filter for my car.

butler

My 99 z28car went from 13.16 @ 106.5 to 12.92 @ 108.5 without k&n.

chrs1313

iTrader: (24)

i highly doubt that was a result of only the filter...i.e. da conditions

butler

No it wasn't the conditions. Ran first past 13.16 took out air filter and ran 12.92. I also have a 10 second mustang that has made 400 passes and the camaro is my new project. I've made this same test several times before and have even switched from a stock to a slp lid on consecutive runs with no changes.

chrs1313

iTrader: (24)

both filters flowed about the same if anything the paper filter was about 1 percent less restrictive...

looks like K&N is all marketing...I am going to test at the track too...I am still intrigued with this...

dlove

iTrader: (23)

what butler is saying is that, he went 13.1 with a filter (k&n) and then went faster without any filter

not k&n vs stock

NHRAFORMULA00

iTrader: (2)

my car has never run any faster( MPH )after removing k&n filter.I have done it on at least 4-5 times trying too squeeze out a higher trap speed.If your running faster without a filter,then clean it or replace it.

butler

It was brand new wiseass. I'm 51 not some child

NHRAMAN

iTrader: (1)

You tell 'im pal.

chrs1313

iTrader: (24)

well i guess you get more stupid with age because you are not going to get 24rwhp or 2.4 mph from just removing a clean air filter...

if that were true would that be a free mod everyone would do...

gator didnt recieve any gains either...

dlove

iTrader: (23)

i have seen the same gains by taking out the airfilter time after time. do a search, many others have as well. and yes I had a clean filter, and I know his was clean as well

ps watch the comments

FlashLCD33

iTrader: (8)

Running no filter SHOULD be faster than running with a filter. Less restriction, no matter how clean the filter is. I don't know why anyone would argue this.

tee-boy

iTrader: (8)

Based on experience, I feel pretty strong that taking off air filter will allow for better mph in the quarter mile.

However, I would suggest more frequent oil changes.

gotta pay to play!

chrs1313

iTrader: (24)

i agree that it helps but not 24rwhp...looks like i am going to have to make another test at the track...