LT1-LT4 Modifications 1993-97 Gen II Small Block V8
View Poll Results: MAF screen in or out
NO screen
55.81%
Yes i have the screen
41.86%
What is the MAF screen
0
0%
I don't care
2.33%
Voters: 129. You may not vote on this poll

MAF Screen IN OR OUT

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Old 01-22-2007, 10:40 AM
  #21  
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Mines in with the original maf. I have a maf off of a ls1 that is descreened but dont use it.
Old 01-22-2007, 10:50 AM
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ported with No screen for about 5 yrs,no problems.
Old 01-22-2007, 02:51 PM
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no screen no problems
Old 01-22-2007, 03:43 PM
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My MAF is tuned out but the MAF is still there. I did descreen it though. MAF is still there only because it helps with fitment of my elbow and aftermarket intake blah blah
Old 01-22-2007, 04:07 PM
  #25  
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Originally Posted by buffman
these arent the MAF ends you're thinking of. A company commonly known as NX makes them for a reason

I think I have seen these somewhere before.....

Last edited by Ray@Nitrous Outlet; 01-23-2007 at 10:56 AM.
Old 01-22-2007, 06:00 PM
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Originally Posted by Hark_Z
My MAF is tuned out but the MAF is still there. I did descreen it though. MAF is still there only because it helps with fitment of my elbow and aftermarket intake blah blah
WHAT??? the only reason to tune out the MAF is to eliminate it as a restriction. Why would you leave it in there? Go by a 3 1/2 piece of pipe cut it to fit and put that in its place.
Old 01-22-2007, 06:02 PM
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its descreened it makes no diff.^
Old 01-24-2007, 07:25 PM
  #28  
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I never tried to take the screen off...I pumped out 474hp on the dyno with my 383
Old 01-26-2007, 07:58 AM
  #29  
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No screen
Old 01-31-2007, 10:43 PM
  #30  
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My last N20 backfire descreened the MAF FOR ME! haha, all the way into my K&N filter and splash panel.

Up until then, It was screened. I have heard and trust, that the screen is used to straighten out any turbulent air charge.

Just leave it, it's not hurting performance in anyway!
Old 02-01-2007, 05:08 PM
  #31  
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madz28 tune asks if it is descreened or not. Ion wouldn't ask if it didn't make a tuning difference...
Old 02-01-2007, 06:19 PM
  #32  
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Here is a article about the resrictions and flow numbers on the LT1 f-body if it doesn't turn out decent I can E-mail if you want to see it.

Old 02-01-2007, 09:27 PM
  #33  
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Originally Posted by onephatZ28
I want to know how many people are running without the MAF screen
Granatelli here, no probs..... Screen who, what?

As long it's not a SLP MAF, yank dat biaaaatch out......
Old 02-01-2007, 10:19 PM
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Yea I have my stock MAF with the screen, and doesnt the computer compensate after running a few cycles for the temporary lean condition caused by the MAF being ported and descreened?

I dont see a point for descreening it, my screen catches a lot of junk. Like said before it makes the air flow more laminar and less turbulent.

Plus my way of seeing it is MAF's are freaking expensive, why take the chance of destroying one for absolutely no gain in Performance?
Old 02-01-2007, 11:08 PM
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De-screened, and pretty much a straight Intake with the LS1 Lid. There is all kinds of opinions here..
Whoever up there had theirs tuned out and still has it inplace, get rid of it, it's smaller in diameter and therefore a restriction..
Old 02-02-2007, 02:11 PM
  #36  
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no screen here and no problems, had it tuned with the screen out.
Old 02-02-2007, 04:39 PM
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My screen is in and I have no intentions of removing it.
Old 02-03-2007, 09:36 PM
  #38  
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Originally Posted by jakesz28
Here is a article about the resrictions and flow numbers on the LT1 f-body if it doesn't turn out decent I can E-mail if you want to see it.

From wich magazine does this article came from?

It seems to give 24cfm when you take out the screen.

By the way mine is out and the pcm is tune for it.
Old 02-03-2007, 11:52 PM
  #39  
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Just leave it in...dont mess with Mass airs, and buy into that upgraded Mass air BS crap.....
Old 02-04-2007, 01:04 AM
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I took mine out after reading of the benefit of removal, the artical is availble online if you google GMhightechperformance free mods. The screen does nothing other than restrict flow, so that the cars will meet federal horsepower, airflow, and emissions regulations. As long as you descreen it using caution ie dont hit the sensors, you will have increased throttle response. As long as you are running a decent air cleaner there should be little to no debris penetration.


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