• Mustang Forums
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
  • 1994 - 1995 Specific Tech

getting bummed...help somethings wrong

  • Thread starter Thread starter blksn955.o
  • Start date Start date Sep 27, 2005
Prev
  • 1
  • 2
First Prev 2 of 2

blksn955.o

Founding Member
Mar 15, 2002
3,263
0
66
st.louis mo 314
Sep 28, 2005
#21
  • Sep 28, 2005
  • #21
Yes, I plan on doing it this winter while its cold out.

I had just pulled the intake back in april and wanted to get some driving time to break it in. I have a set of 1.7rr awaiting to go on.

I need to do another driving loop in the next day or so and see if the j4j1 maf transfer feels any diff, than no tweecer I realy hope so... I will be dataloging this for sure.

it started raining just as I left so I realy couldnt drive much.

Is it possible for the connection at the j3 to be partial? I mean I find it very, very wierd that the drivability sucks but power is gained with the tweecer off, and that the only thing the tweecer does is give me some drivability with much much softer perf. even with timing and fuel made better.
 

blksn955.o

Founding Member
Mar 15, 2002
3,263
0
66
st.louis mo 314
Sep 29, 2005
#22
  • Sep 29, 2005
  • #22
final5-0 said:
OK



btw...what is the most airflow you have seen in your dlogs?



Grady
Click to expand...


I datalog the MAFV for the EA program, and I see 4.53621 @ 5135.5 (the highest I reved it to on the datalog wot, due to traffic). EA sug. a new MAF curve and from my datalogs there is a dip in the mid range of the curve not much but there is one below 2.8v (the only part that does not follow the exact same j4j1 part of the curve) and just above 2.3v. I wouldnt think this would make it soo soft perf. wise at the track??? were else should I look at in the tune?

I also made a T4M0 5spd gt tune and am going to see if there is a noticable diff. I need to get to a dyno...this sucks.
 

final5-0

Mustang Master
Apr 6, 2003
6,817
12
79
DFW Texas
Sep 29, 2005
#23
  • Sep 29, 2005
  • #23
blksn955.o said:
I datalog the MAFV for the EA program, and I see 4.53621 @ 5135.5 (the highest I reved it to on the datalog wot, due to traffic).
Click to expand...

WOW ... 4.5 maf volts ... not a lotta room left in the old maf curve.

EA sug. a new MAF curve and from my datalogs there is a dip in the mid range of the curve not much but there is one below 2.8v (the only part that does not follow the exact same j4j1 part of the curve) and just above 2.3v. I wouldnt think this would make it soo soft perf. wise at the track??? were else should I look at in the tune?
Click to expand...

What about your airflow?
How many kg/hr do you see in your maf column at max wot rpm?

I also made a T4M0 5spd gt tune and am going to see if there is a noticable diff. I need to get to a dyno...this sucks.
Click to expand...

I know about getting to the dyno frustration

Ever since the little woman lost her good paying job, I've had to really cut back on playing with the Stang

Grady
 

blksn955.o

Founding Member
Mar 15, 2002
3,263
0
66
st.louis mo 314
Sep 30, 2005
#24
  • Sep 30, 2005
  • #24
final5-0 said:
WOW ... 1.5 maf volts ... not a lotta room left in the old maf curve.



What about your airflow?
How many kg/hr do you see in your maf column at max wot rpm?



I know about getting to the dyno frustration

Ever since the little woman lost her good paying job, I've had to really cut back on playing with the Stang

Grady
Click to expand...


wouldnt that be .4639 volts left as its on a 5v scale? A local guy has a 80mm 99 lightning maf for sale for like 65$. I have been looking real hard at that.....

I have no idea with the kg/hr are I have never logged that, let me do another log tomarrow (later today actually) and see.
 

blksn955.o

Founding Member
Mar 15, 2002
3,263
0
66
st.louis mo 314
Sep 30, 2005
#25
  • Sep 30, 2005
  • #25
just in case here is a thread I started on the eectuning forums.

I am off again tues. and if the weather is nice I am going to try and get back to the track.

http://eectuning.org/forums/viewtopic.php?p=32839#32839
 
Prev
  • 1
  • 2
First Prev 2 of 2
You must log in or register to reply here.

Similar threads

Engine Hiccup at full throttle
  • keel
  • Jun 2, 2026
  • Fox 5.0 Mustang Tech
  • 2
Replies
30
Views
447
Fox 5.0 Mustang Tech Jun 10, 2026
Noobz347
D
No start
  • dkrupp79
  • May 31, 2025
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
Replies
3
Views
178
1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- Jun 1, 2025
dkrupp79
D
SN95 Desktop 363 Engine Combination - Looking for input
  • WhiteCobra95
  • Sep 8, 2025
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
Replies
11
Views
1K
1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- Oct 6, 2025
Habu135
M
Engine Unexplainable Exhaust Pop and Gurgle
  • Mrnissen122
  • Feb 14, 2026
  • Fox 5.0 Mustang Tech
Replies
12
Views
515
Fox 5.0 Mustang Tech Feb 18, 2026
Noobz347
Engine 1990 LX 5.0L EFI Mustang Fuel Management Problems - HELP!
  • 5.0LXStanger
  • May 25, 2025
  • Fox 5.0 Mustang Tech
  • 2 3
Replies
45
Views
2K
Fox 5.0 Mustang Tech Jul 11, 2025
5.0LXStanger
Share:
Bluesky Email Share Link
  • Mustang Forums
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
  • 1994 - 1995 Specific Tech
Menu
Log in

Register

  • Forums
  • What's new
  • Media
  • Resources
  • Contact
  • Sponsor
X

Privacy & Transparency

We use cookies and similar technologies for the following purposes:

  • Personalized ads and content
  • Content measurement and audience insights

Do you accept cookies and these technologies?

X

Privacy & Transparency

We use cookies and similar technologies for the following purposes:

  • Personalized ads and content
  • Content measurement and audience insights

Do you accept cookies and these technologies?