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Just wondering if a lot of you guys remove the MAF screen. Since i have a turbo i got to thinking that maybe it is a restriction to the BOOSTED :drool: air going through it. So if someone has done it and noticed a difference and didn't get a MIL, then let me know. Thanks!
don't mess with it!
Dont do it, youll end up just wanting to put the screen back in.
<div class='quotetop'>QUOTE(chrisj6 @ Jan 25 2006, 10:37 AM) [snapback]42184[/snapback]</div>thats what i ended up doing. dont do it...Quote:
Dont do it, youll end up just wanting to put the screen back in.
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I'll do it!!!........ I mean Thanks i'll leave it be!
DONT EVEN THINK ABOUT IT!!!!!!!!, i had to buy 2 more mafs cause i descreened mine, couldnt get it back in, the tune was bad cause the screen was out, bought a used one, it didnt work good, so i had to buy a new one , if id had just left it alone.......................... :cry:
i would not do it either,that is one of those little so called mods that peoplke think helps.That screen helps direct the air flow.
Exactly what kind of problems have you guys run into by removing it? All I ever hear is don't do it but no real explanation of why, except it will mess with your tune. Mine is removed and I'm having minor issues at startup but I'm not sure if this is the cause.
It will lean out your tune tremendously.
OK that's probably my problem then. When I had the truck dynoed my A/F ratio was about 14.2:1, I wouldn't really call that severe though would you, but enough to lose hp. Also at cold startup it runs funny kinda like it has a vacuum leak. I'm assuming the computer is searching for the correct ratio until the O2's get heated up. Does this sound like a descreened maf problem to yall?
Are you saying your AF ratio was 14.2 at WOT? If thats the case then yes thats severe! Put the screen back in! But if you are talking about it being that at part throttle when you are a hair on the rich side.
Chris
Yes that's at WOT. I can't put it back in it's long gone.
I have heard that the screen is to "smooth" the airflow through the MAF. If the screen is out i guess it "swirls" through the MAF and causes an inaccurate reading.
I pulled the screen out of my vortec 350 and bored the casing out to 75mm. I also cut the MAF supports off so it only has vertical supports. This is pretty much the same as the GMS MAF now. I never ran lean, in fact it helped out with the NOS. As far as the GenIII motors go, I don't know so listen to these guys since they have more experience. I agree the screen is for directing flow because of the honeycomb direction. I guess I was lucky LOL
OK so I lied! I went and looked through the pile of parts left over from my swap and there it was, moderately damaged. I was able to reinstall it with the old maf ends and I went and drove the truck, hard to tell if it made any difference performance wise but it started and ran good and smooth(no cycling like their was avacuum leak like before). I think I'll drive it around for a couple of days and check my plugs. I checked my plugs after a few K-miles with it descreened and they were super clean not lean looking just super clean almost new looking.
yeah checking plugs is a good way to tell about your A/F mixture and if its burning cleanly or not.
Chris