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MAF screen?

  • Thread starter Thread starter mustang70
  • Start date Start date Nov 3, 2004

mustang70

Founding Member
Nov 15, 2001
2,445
2
48
San Diego
Nov 3, 2004
#1
  • Nov 3, 2004
  • #1
Has anyone removed the screen inside the MAF on their car? And what about the bar running down the middle? I was wondering if it would be a worthwhile and cheap mod.
 

Jackie Chan

I didn't read this.
Founding Member
Oct 17, 2002
2,507
4
48
Orlando, FL
Nov 3, 2004
#2
  • Nov 3, 2004
  • #2
leave the screen and the bar. they are there for a purpose. if you want to learn the reason why, look on modulardepot.com in the 2v tech section. It is all answered there by one of the best mod tuners in the business
 

Blev

New Member
Aug 17, 2003
1,295
1
0
So. Cal. V-Town
Nov 3, 2004
#3
  • Nov 3, 2004
  • #3
mustang70 said:
Has anyone removed the screen inside the MAF on their car? And what about the bar running down the middle? I was wondering if it would be a worthwhile and cheap mod.
Click to expand...
Several people here have removed the screen and have had no problems. I myself still have it in.
 

mustang70

Founding Member
Nov 15, 2001
2,445
2
48
San Diego
Nov 3, 2004
#4
  • Nov 3, 2004
  • #4
I know there was a screen in the MAF I had in my T/A. It was there to straighten the air as it entered the MAF from an elbow. But GM used the same MAF in the trucks and that was where the screen was needed. I pulled the screen and ported the MAF and there was a big difference. That's what made me think of doing it to the Stang.
 

Blev

New Member
Aug 17, 2003
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So. Cal. V-Town
Nov 3, 2004
#5
  • Nov 3, 2004
  • #5
mustang70 said:
I know there was a screen in the MAF I had in my T/A. It was there to straighten the air as it entered the MAF from an elbow. But GM used the same MAF in the trucks and that was where the screen was needed. I pulled the screen and ported the MAF and there was a big difference. That's what made me think of doing it to the Stang.
Click to expand...

I say go for it!!, you just can't remove that little bar deal because I think that has a sensor in it.
 

Jackie Chan

I didn't read this.
Founding Member
Oct 17, 2002
2,507
4
48
Orlando, FL
Nov 3, 2004
#6
  • Nov 3, 2004
  • #6
go for it Im telling you I did the same and on the same day went from trapping 99mph to trapping 94mph. Its a great idea
/sarcasm
 

Mr GT 02

New Member
Apr 8, 2004
548
0
0
Peabody, MA
Nov 3, 2004
#7
  • Nov 3, 2004
  • #7
That BAR that is in the housing of the MAF is the sensor.
So..DONT DO ANYTHING TO IT!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
 

Gearbanger 101

Straight Outta Locash
20+ Year Stangneter
Aug 10, 2002
9,457
1,377
234
Ontario, Canada
Nov 3, 2004
#8
  • Nov 3, 2004
  • #8
Not based on the Mustang meter, but.....
http://www.mn12performance.com/mn12how-to/maf/maf.htm
 
T

tangerine

Member
Apr 6, 2003
555
0
16
millen, ga
Nov 3, 2004
#9
  • Nov 3, 2004
  • #9
Don't alter the maf in any way. Yes it is possible to gain a litle performance out of it because it could possibly lean the car out but I wouldn't do it. You won't pickup anything at all from it. do something with the tb and plenum if you are in the mood for modifying something.
 

Blev

New Member
Aug 17, 2003
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0
So. Cal. V-Town
Nov 4, 2004
#10
  • Nov 4, 2004
  • #10
Jackie Chan said:
go for it Im telling you I did the same and on the same day went from trapping 99mph to trapping 94mph. Its a great idea
/sarcasm
Click to expand...

Is that just from removing the screen? Are you sure it wasn't just your driving? Not saying you can't drive, only that times from one run to another differ. I honestly don't know exactly what that screen does so can't say. I just don't see how it could improve or hurt anything. If anything I would think it adds more restriction. Have any Dyno's been done with and without???
 

NasaGT

Founding Member
Sep 19, 2002
1,993
2
49
Virginia
Nov 4, 2004
#11
  • Nov 4, 2004
  • #11
Don't mess with the MAF, the calibration is set for that configuration. The screen is there to take any rotation out of the airflow as it passes the sensor. It helps produce a nice smooth laminar flow through the maf so you get a reliable reading. As stated above, there is an excellent thread on mafs at the modular depot.

Blev - I think most people here will tell you that Jackie Chan is an excellent driver, look at his mods and his times, with a vert no less.
 

MT1083

New Member
Sep 16, 2003
1,033
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0
Charlotte, NC
Nov 4, 2004
#12
  • Nov 4, 2004
  • #12
I left mine in. I've heard of a few people that had problems with it after removing it. I think I read that its purpose is to straighten the airflow. Any gain in power is not worth it to me (if there is a gain). I would just leave it on.
 

Blev

New Member
Aug 17, 2003
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0
So. Cal. V-Town
Nov 4, 2004
#13
  • Nov 4, 2004
  • #13
NasaGT said:
Blev - I think most people here will tell you that Jackie Chan is an excellent driver, look at his mods and his times, with a vert no less.
Click to expand...
I'm not saying he isn't a good driver in any way shape or form and I believe I stated that clearly. I was only saying maybe his times/MPH differed from one run to another.

Also, thanks for the explanation of the MAF screen.
 

JonJon

Founding Member
Aug 16, 2002
4,801
1
68
back in Marylands
Nov 4, 2004
#14
  • Nov 4, 2004
  • #14
Blev said:
I'm not saying he isn't a good driver in any way shape or form and I believe I stated that clearly. I was only saying maybe his times/MPH differed from one run to another.

Also, thanks for the explanation of the MAF screen.
Click to expand...
er, I think Jackie was exaggerating about the MPH?

It sure didn't make a lick of difference on my car but I put in a C&L MAF. I didn't even realize there was a screen (since it was stuck to the stock MAF) until a few weeks later when people were posting and asking about the screen. I was like "wtf? "

That was around the time I ran my best 1/4...
 

road rage

New Member
Dec 14, 2003
433
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R.I.
Nov 4, 2004
#15
  • Nov 4, 2004
  • #15
Took mine out when I installed a densecharger cai no problems what so ever.
 

downsouthman1

Member
Dec 16, 2003
643
0
16
Texas
Nov 4, 2004
#16
  • Nov 4, 2004
  • #16
I've been running w/out my MAF screen for some 5 months or so now. The only difference I noticed was a slightly quicker SOTP reading, not really noticeable.
 

Jackie Chan

I didn't read this.
Founding Member
Oct 17, 2002
2,507
4
48
Orlando, FL
Nov 4, 2004
#17
  • Nov 4, 2004
  • #17
ok, sorry i wasnt clear... altering the post in the meter and removing the screen was a friends idea and a very bad one at that and the difference in mph was no exaggeration. There will BE NO GAINS consistently from removing the screen, so leave it alone. SOTP is if you ask me. IMO leave the MAF alone unless you need to upgrade or have a tuner tune the car.
 
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