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  • 1996 - 2004 SN95 Mustang -General/Talk-
  • SN95 4.6L Mustang Tech

Porting out MAF

  • Thread starter Thread starter mustanggt3685
  • Start date Start date Oct 22, 2005
M

mustanggt3685

New Member
Oct 8, 2005
130
0
0
Illinois
Oct 22, 2005
#1
  • Oct 22, 2005
  • #1
Hey guys,

I am having one of those bored ass weekends here at school and I was contemplating porting out my MAF. I have read a few tech articles on it, but am unsure if this is worth it or not. The damn MAF is kind of expensive and I do not want to ruin it. Is it worth the time or not?
 
V

vld

New Member
Nov 5, 2004
132
0
0
Oct 22, 2005
#2
  • Oct 22, 2005
  • #2
i get the basic idea behind porting the maf but i cant see the real benefit here. seems to me you would get better return on the pipe/tb/intake than from porting the maf. but the is all bs and contemplation from me as i have no experience with either. 2cents
 

jasonh_86

I
May 20, 2005
1,156
2
48
Arkansas
Oct 22, 2005
#3
  • Oct 22, 2005
  • #3
No idea.. go for it if ya want
 

Dark Knight GT

I can't get it up......ok that didn't sound right.
May 26, 2003
3,653
2
56
Ozark, Missouri
Oct 22, 2005
#4
  • Oct 22, 2005
  • #4
I've read that by porting an aluminum MAF meter, you create a bit of a lean condition, especially in higher rpms. For a n/a application, that is more ideal for more efficient combustion, but at the same time, if you don't know what you're doing, you can really damage something.
 

sgarlic

Founding Member
Apr 21, 2001
3,085
1
56
Oct 23, 2005
#5
  • Oct 23, 2005
  • #5
How do you plan on changing the EEC tables for the unmetered air once you port it? Are you going to get a dyno tune? It won't do you any good to port it, so you might as well just buy a new one which may do you good down the road when you have the mods to support needing a bigger MAF.
 
T

Tommy 00GT

Founding Member
Feb 13, 2000
122
0
0
Bay Area, CA
Oct 23, 2005
#6
  • Oct 23, 2005
  • #6
I'm gonna try it on a maf that i bought from ebay for $30
 

Dark Knight GT

I can't get it up......ok that didn't sound right.
May 26, 2003
3,653
2
56
Ozark, Missouri
Oct 23, 2005
#7
  • Oct 23, 2005
  • #7
You bought a MAF meter off ebay for 30 dollars ? Is this MAF meter even designed to be used on a GT ? If so, I take it this piece isn't new, but definately used by the pricing.
 
M

MAXX RS4

New Member
Jun 1, 2005
83
0
0
Oct 23, 2005
#8
  • Oct 23, 2005
  • #8
I bet smoothing it out inside would yield better results than porting it.. But I'm just talking out of my circle mouth behind me.
 

1LowGT

New Member
Sep 4, 2005
294
0
0
st louis mo.
Oct 23, 2005
#9
  • Oct 23, 2005
  • #9
smoothing them out i think males the bigger difference but leave the screen in it,seems like every time the screen is removed here comes the light
 
T

Tommy 00GT

Founding Member
Feb 13, 2000
122
0
0
Bay Area, CA
Oct 23, 2005
#10
  • Oct 23, 2005
  • #10
Dark Knight GT said:
You bought a MAF meter off ebay for 30 dollars ? Is this MAF meter even designed to be used on a GT ? If so, I take it this piece isn't new, but definately used by the pricing.
Click to expand...


Used from a 99GT. It comes with the housing and sensor.
 

Jackie Chan

I didn't read this.
Founding Member
Oct 17, 2002
2,507
4
48
Orlando, FL
Oct 23, 2005
#11
  • Oct 23, 2005
  • #11
dont do it....trust me the car will run like **** and lose 20hp
 
M

MustangLife

Active Member
Jan 5, 2003
1,285
0
36
Chattanooga, TN
Oct 23, 2005
#12
  • Oct 23, 2005
  • #12
Our stock MAF cost $150 - $200 new, this $30 maf is probaly not in good working order. I wouldn't ever put a $30 maf on my car.

Josh
 

Mustang5L5

That is…until I whipped out my Bissell
Mod Dude
Feb 18, 2001
43,371
18,119
224
Massachusetts
Oct 23, 2005
#13
  • Oct 23, 2005
  • #13
The MAF is a calibrated unit. The sample tube port and the main port are sized in a specific ratio to monitor airflow.

If you port the MAF without porting the samply tube port you will increase airflow without the EEC seeing it. You will lean the car out. Since there is no way to accurately determine how much of the samply tube port needs to be ported to keep in ratio with the main port, it's best to leave it alone
 
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