|
|
|
|
|
|
BMW Garage | BMW Meets | Register | Search | Today's Posts | Mark Forums Read |
|
BMW 3-Series (E90 E92) Forum
>
Carbon filter removal...
|
|
10-15-2010, 12:11 PM | #1 |
Colonel
74
Rep 2,848
Posts |
Carbon filter removal...
Ive read everything there is to know about that damn thing...just wanted to know for u guys running a k&n with the carbon filter gone what have been your experiences with it as time has gone by? I dont know whether or not to hack the thing out of there...
|
10-15-2010, 12:52 PM | #3 |
Private First Class
15
Rep 127
Posts |
i agree do it.. easy mod to free up some air flow.
__________________
2013 Bmw 335 xdrive: Imperial Blue/Saddle/Luxury/Tech/Prem/Cold/BMS Stage 1/RPI GT Exhaust
|
Appreciate
0
|
10-15-2010, 02:12 PM | #6 |
Brigadier General
117
Rep 3,325
Posts
Drives: E90 335i LCI
Join Date: Aug 2008
Location: Orange County, CA
|
it doesn't hurt. just do it
|
Appreciate
0
|
10-15-2010, 06:57 PM | #8 |
Second Lieutenant
40
Rep 259
Posts |
Just did this last night as well as deleting the intake silencer. Easy project and only took about 25 minutes start to finish for both. Free way to free up some flow!
__________________
|
Appreciate
0
|
10-15-2010, 08:39 PM | #9 |
Lieutenant Colonel
28
Rep 1,522
Posts |
|
Appreciate
0
|
10-15-2010, 09:08 PM | #10 |
Banned
85
Rep 2,097
Posts |
there is a diy guide in the diy section, but all u really need to do is unscrew the intake/MAF sensor and take a utility knife/dremel/something to cut the filter out and sand the edges down to smooth it out. then just make sure u clean up everything.
|
Appreciate
0
|
10-15-2010, 09:36 PM | #11 |
Banned
252
Rep 7,089
Posts
Drives: '06 AW 330xi
Join Date: Mar 2009
Location: North Jersey/Philly/NYC
|
I've had an oiled aFe drop in for the last year with the carbon filter/air silencer removed.
Responsiveness increased a bit. Nothing to crazy over. Just make sure you clean the airbox well to make sure no debris gets sucked into your engine and handle the MAF carfully. Also with an oiled filter, you may need to clean the MAF more often...just cleaned mine and had a nice "boost" in power. |
Appreciate
0
|
10-16-2010, 02:36 AM | #12 |
Colonel
77
Rep 2,114
Posts |
Box cutters or a knife work well to cut the CF out. Just use some sandpaper to smooth the rough edges left behind. And please for the love of all that's holy in the BMW world, don't forget to clean out the airbox afterwords (vacuum, hose, etc).
__________________
E92 '08 335Xi 6AT - Cobb AP3 Tuned by MAC Autosport, Original Prototype Xi DOCRace 6266 Single Turbo Swap, VRSF CP w/Synapse BOV, VRSF 7" FMIC, BMS Cowl, H&R Coilovers, Renn Motorsport RS-51's, Stoptech Stage 2 Slotted, xHP Stage 3, Earl's Racing Oil Cooler, Turner Boost Gauge, M3 Lip Spoiler.
Standing Mile Record Holder for Xi over a mile high: 168.2MPH @ 5512'; The Colorado Mile hosted by The US Mile. |
Appreciate
0
|
10-16-2010, 07:45 AM | #13 |
Colonel
74
Rep 2,848
Posts |
Well the deed is done...used a box cutter to cut the filter out and a sander to get all the excess adhesive off. Hosed it off about 3 times and blew it off with a yard blower (10pm Neighbours didnt care for that much). Umm as for improvements? I kept trying to feel something but i didnt. Maybe a very very very slight louder hiss from the box and thats about it. I did notice a bit better response in throttle, but the weather here in fl has been significantly cooler then normal so that might be it. But the concept of more air makes sense so whatever. All in all took about an hr to do cause i wanted the edges perfect. Thanks for all your input guys i appreciate it...
|
Appreciate
0
|
10-16-2010, 09:29 AM | #14 |
Lieutenant Colonel
28
Rep 1,522
Posts |
Ok thanks did find that DIY thread, so this is a permanent layer of air restrictive device just for the US?
|
Appreciate
0
|
10-16-2010, 11:37 AM | #15 |
Lieutenant
21
Rep 495
Posts |
And Canada .... I removed mine, no human-detectable difference, but in some theories you're better off without it. I'll save the environment through improved mileage instead of vapour control ;-)
__________________
"WINDING ROAD FOR 7 KM" ... l |
Appreciate
0
|
10-16-2010, 12:34 PM | #16 |
Lieutenant Colonel
28
Rep 1,522
Posts |
Well that didn't take very long I don't expect to have any noticeable difference, but knowing a piece of unnecessary item is gone is a good feeling.
Took out on a test drive last night, did notice more aggressive intake sound, the pull was stronger too but that could just be that the temp had dropped quite a bit. Last edited by dtc100; 10-17-2010 at 09:14 AM.. |
Appreciate
0
|
10-19-2010, 03:21 PM | #18 |
Lieutenant Colonel
28
Rep 1,522
Posts |
Posted this Q in DIY but got no response, after comparing the pictures of the stock airbox and the BMW PI box, I see the only difference is one split opens, the latter opens from the top, of course the PI has a cone filter.
Did anyone attempt to retrofit a cone filter into a stock airbox? I know someone mentioned the Dinan ram filter kit, am asking if anyone tried a DIY. |
Appreciate
0
|
10-20-2010, 09:23 AM | #20 |
Colonel
74
Rep 2,848
Posts |
Yea I removed all the ridges and got it all smooth. I used an electric sanding block with some low grit paper then worked my way up. I also used a couple of different heavy duty files. Those seemed to worked very well...It takes a little bit of time but I got everything smooth enough for my liking washed it out ALOT dried it with the blower and re installed.
|
Appreciate
0
|
10-20-2010, 09:27 AM | #21 | |
Colonel
74
Rep 2,848
Posts |
Quote:
|
|
Appreciate
0
|
10-20-2010, 10:02 AM | #22 | |
Lieutenant Colonel
28
Rep 1,522
Posts |
Quote:
But fitting a cone fillter in the stock box is definitely doable, just need to find the right size filter. The BMW performace intake is basically a stock airbox fitted with a cone filter. BTW, I finally got my K&N in, noticed some clear differences (unlike just the charcoal filter delete the other night) on my initial test run. The throttle lag on startup was gone, the car pulled harder, the engine was more eager, at redline the sound was more aggressive. I will give it some time to get used to, then make my final decision on a tune. |
|
Appreciate
0
|
Bookmarks |
Thread Tools | Search this Thread |
|
|