Dragaholic

iTrader: (180)

I know of a few friends that do this when they go to the track, just wondering if it really does help and if so how? Also, what kind of gains? Thanks.

glennster

iTrader: (1)

I use a stock paper fram and my car picks up a solid tenth when removed.I ran the car last weekend after the new kooks and after a 13.04@108.53 with a good 1.90 60' I remembered the damn filter was still in and removed it for a 12 second run.I slightly bogged the car and got a 13.03@108.93 with a 1.96 60',you do the math.

unit213

Just do some mods and save your motor the dirt intake. The tenth you save (if that) isn't worth it.

Turo

iTrader: (23)

, if dirt gets in there you're REALLY going to wish you hadn't done that

taqwache

i tryed it several times and did not gain anything. so i figured why spend $50 for a K&N when removeing it completely didnt do anything. so i just keep buing stock replacements from fram.

Humanoid

iTrader: (3)

I have seen the panty-hose method done but have never tried it.

jfm

iTrader: (4)

I saw 6 rwhp on the dyno removing the Fram and installing a screen in its place.

StreetStalkerZ

iTrader: (1)

Been doing it for 5 years now and i gain a tenth and 1 mph removing it. Just wrap the filter tray with panty hose to keep the dirt out and your good to go!

Classic

iTrader: (3)

I messed around with this on the dyno while tunning this current setup. I tuned the car to my set air/fuel ratio, and then took the filter out. The car actually lost 5hp and the air-fuel was off by half a point. I then made a quick adjustment back to the normal air-fuel/still without the filter, and the car actually picked up 5 hp over the power with the filter. Now that was on the dyno -- so a loss unless it was re-tuned.

At the track I tried removing the filter (but no tuning change) and didn't see any gain. I actually ended up destroying my MAF on my way back to the pits on the last run So my vote is definetly for leaving the filter in.

GeorgeC

It's been awhile now, but I did do some testing a couple of years back, and my car was consistently quicker with a Holley filter in it vs. no filter at all... YMMV...

9secbird

iTrader: (9)

Thats exactly what my car did, I lost 5hp on the dyno from removing it

Dragaholic

iTrader: (180)

Wow, this is a tough one! Ive got half replies saying it works and the other half saying it doesnt. Would this kind of "mod" vary on different applications and if so, why/how? Sorry if this seems like a dumb thread, but Im just trying to find ways to squeeze every bit out of the car. Thanks.

Colonel

I saw a very slight loss on the dyno. So small it's hard to prove. At the track I see a DEFINITE gain (I've tested this back to back to back on numerous occasions with the same result) of about a 1/4-1 MPH (depending on which car I'm in. The big engine benefited more) but it may be helped that I have a FTRA kit. I think it works very well in conjunction with removing the filter.

I pulled the filter part off of a stock airfilter leaving only the metal screen. I use this when I pull the filter just to keep the birds out.

unit213

That's just not worth it to me. 1mph? Big deal. Just add more power to the car.