Descreened my MAF

clayton04chevy · #1 11-02-2005, 07:11 PM

I was detailing (cleaning) my truck and had some time on my hands and decided i'd descreen the MAF. Very simple mod, and despite what others have said, there's was a small gain IMO. Has anyone else tried this mod?

Cool pic looking into the K&N

97cavalier · #2 11-02-2005, 07:33 PM

[quote=clayton04chevy]I was detailing (cleaning) my truck and had some time on my hands and decided i'd descreen the MAF. Very simple mod, and despite what others have said, there's was a small gain IMO. Has anyone else tried this mod?

Cool pic looking into the K&N

[/QUOTE
I have not done it because it would make it go bad or if i did i would break something. did it make any lights come on on your dash? and how did you take it off?

clayton04chevy · #3 11-02-2005, 07:36 PM

Quote:

Originally Posted by 97cavalier

I have not done it because it would make it go bad or if i did i would break something. did it make any lights come on on your dash? and how did you take it off?

No lights came on on the dash thank God.

How I took it off?
http://www.sshotrods.com/fullsize/99up/maf/

maxwedge · #4 11-02-2005, 07:48 PM

Removing the screen may affect your maf inputs to the pcm as most screens are designed to straighten out are flow over the sensor wire for more accurate air flow inputs. Time will tell if this will harm or improve your perforamnce.

kenny-1907 · #5 11-02-2005, 08:10 PM

If it is the case that the screen needs to be there to straighten out the air flow for a more accurate reading, then why do aftermarket MAF's not have the screen ?

LongIslander26 · #6 11-02-2005, 08:48 PM

Quote:

Originally Posted by kenny-1907

If it is the case that the screen needs to be there to straighten out the air flow for a more accurate reading, then why do aftermarket MAF's not have the screen ?

K&N says one of the benefits of using their filters is that it straightens out the airflow, so if this is indeed true and you have one of these, the MAF (Or PCM) may not notice that the screen is gone. Just a thought.

Faze2183 · #7 11-03-2005, 04:10 AM

ive talked to 2 people that have done it and about a couple days later their tranny started slipping, but only because they dogged it, i did it to mine and didnt notice anything, and allen at nelson performanance tuned it to work and etc...

jeverett · #8 11-03-2005, 08:35 AM

I did this to mine and it started pinging like shit. I think it's leaning the air'fuel mixture so I put my screen back in. I felt absolutely no gain at all.Not worth the time IMO.

kenny-1907 · #9 11-03-2005, 10:39 AM

I was thinking of removing the secren on mine but i did about 2 hrs worth of reading last night in various forums just by doing a google search on "descreened maf" and there were more against this mod than were for it. Alot said they had problems after, some even said they had stuff sucked into their engine ,although how something of any size big enough to harm the engine can get past the air filter is beyond me. On one forum i read that they have a "Looking for things" forum or something like that and they said that alot of people are looking for the factory maf's WITH the screen still in them. Some people say there was a noticeable gain but more say there was no noticeable gain at all. Not worth it imo, just my $0.02

Sonny01 · #10 11-03-2005, 11:16 AM

I descreened mine about a year and a half ago and can't tell a difference...I read that is was to keep chunks of stuff off of the sensor.

clayton04chevy · #11 11-03-2005, 01:53 PM

I want to put it back on now damnit. Anyone know where I can get another screen? Mine might be to damaged to put back on.

BlenderWizard · #12 11-03-2005, 04:14 PM

call a junkyard

TexasF355F1 · #13 11-03-2005, 08:09 PM

It's never actually been proven to help or hurt the truck. I've had mine out since '01 and no problems that I can tell.

maxwedge · #14 11-04-2005, 11:28 AM

More anecdotal " tricks" that don" work.

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