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

Fi Conversion

  • Thread starter Thread starter Old Skooler
  • Start date Start date Sep 11, 2012

Old Skooler

Founding Member
Feb 27, 2012
248
43
39
Sep 11, 2012
#1
  • Sep 11, 2012
  • #1
A buddy of mine called me last night and is in need of some cash fast and wants to unload the following fast: GT 40 tubular intake, pro M mass air, throttle body & spacer, 30. Lb injectors, fuel pressure reg etc.. He's been collecting this for a year but he's selling the car parts everything, his daughter is very sick. That said my car is carbarated and I would have to convert everything over, something I've been toying with a lot. I've been looking at complete wiring harnesses on eBay and they seem reasonable, I haven't checked the local yards yet, but I have couple questions for the gurus..

How do I know I'm getting what I need and not getting ripped off, is there a check list of parts?
How complicated is this conversion? This is my first actual build, I'm very handy and willing to learn, but I don't want to be over my head?
Is there a different way of going about this meaning an after market harness I could look at?

I'm reviewing previous threads but if anyone could offer any additional advise it would be great. I really want to help him out. Thanks
 

TOOLOW91

If you're the village idiot what's that make me?
20+ Year Stangneter
Nov 29, 1999
8,481
8,677
234
S.I.NY
Sep 11, 2012
#2
  • Sep 11, 2012
  • #2
Its not hard. You need an injector harness, Computer harness and 02 sensor harness. To get the right stuff depends on year of your car . Pre 89 uses a different harness body wise than 90-93 and i believe there werre changes besides air bag stuff on the later model cars but i know there are threads that cover that . Other wise its basically laying the harness in the car. Hooking the comp up and grounding it. Swapping the intake, and putting 02 sensors in and plugging it all in
 

88LX5.Oh

15 Year Member
Dec 30, 2011
1,442
204
94
Arkansas
Sep 11, 2012
#3
  • Sep 11, 2012
  • #3
Fuel pump set up. Have to have an EFI set up. In tank fuel pump with a return line.

Also to feed a set up with 30 lb injectors you'll need probably a 190 LPH fuel pump. I have 24's and needed a larger fuel pump so 30's you'll definitely need bigger than stock.


Here's a bad ass harness company that I was going to order through to convert my truck to an EFI set up. But I'm lazy and never went through with it.
http://www.rjminjectiontech.com/collections/50l-efi-harnesses
 

TOOLOW91

If you're the village idiot what's that make me?
20+ Year Stangneter
Nov 29, 1999
8,481
8,677
234
S.I.NY
Sep 12, 2012
#4
  • Sep 12, 2012
  • #4
I forgot about the lines and tank silly me ....
 

Old Skooler

Founding Member
Feb 27, 2012
248
43
39
Sep 13, 2012
#5
  • Sep 13, 2012
  • #5
Thanks for the info but i decided to stick with my set up. I've spent the last 6 months learning how to at with my carb and I don't feel like investing more money. Truth be told I'm pretty happy with the carb set up now.
 

CarMichael Angelo

my rearend will smell so minty fresh,
15 Year Member
Nov 29, 1999
10,641
8,909
234
Birmingham, al
Sep 13, 2012
#6
  • Sep 13, 2012
  • #6
Old Skooler said:
Thanks for the info but i decided to stick with my set up. I've spent the last 6 months learning how to at with my carb and I don't feel like investing more money.
Truth be told I'm pretty happy with the carb set up now.
Click to expand...
Click to expand...

Where were you on the other two threads?
 
Reactions: 88LX5.Oh

Cobra912

Active Member
May 1, 2005
1,777
11
39
Wish I was anywhere but here
Sep 13, 2012
#7
  • Sep 13, 2012
  • #7
carbs are for real men




















take it easy I'm just joking
 
Reactions: HotFox

HotFox

15 Year Member
Jan 5, 2009
1,046
639
164
SE Michigan
Sep 13, 2012
#8
  • Sep 13, 2012
  • #8
Good to see you Cobra912. Last I knew you were sick? Weren't you?
Still have the car Looks like a different car then the yellow car you had? and now a 88 to the stable!

Scott
 

Cobra912

Active Member
May 1, 2005
1,777
11
39
Wish I was anywhere but here
Sep 13, 2012
#9
  • Sep 13, 2012
  • #9
hey, thanks! I was but am better now, long story! Still have the yellow and black car, popped some lifters which wiped out the cam. Mismatched lifters for solid roller springs....lol. Thrust bearing pooped the bed too so I need a crank. Made a few 10.50 passes before it took a vacation. Oh well short racing season. Sold the 88 (gotta update sig) but picked up a a sweet 07 F150 FX4 supercrew. Just haven't been on here much lately, stop in once. I see you are pushing good numbers, I had my stock block 331 / Paxton 1220SL down to 10.60 before it threw a rod through the side of the block, otherwise the stock steel held up fine.
 
You must log in or register to reply here.

Similar threads

S
Fox '87 GT can't get to stay running
  • spilly
  • Mar 29, 2026
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
  • 2
Replies
26
Views
565
1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- Apr 25, 2026
CAMTWO1070
J
New to Mustangs/Fords
  • Joradan93Foxbody
  • Mar 2, 2026
  • The Welcome Wagon
Replies
0
Views
117
The Welcome Wagon Mar 2, 2026
Joradan93Foxbody
J
Z
Progress Thread zeth194 - New Guy on the Block
  • zeth194
  • Mar 19, 2026
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
Replies
10
Views
436
1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- Apr 26, 2026
LILCBRA
D
Buying with a bad motor?
  • djj62478
  • Mar 8, 2026
  • 1996 - 2004 SN95 Mustang -General/Talk-
Replies
8
Views
231
1996 - 2004 SN95 Mustang -General/Talk- Mar 11, 2026
TTSaleen
L
New here from Maine
  • lobster
  • Mar 2, 2026
  • 1965 - 1973 Classic Mustangs -General/Talk-
Replies
19
Views
441
1965 - 1973 Classic Mustangs -General/Talk- Mar 5, 2026
lobster
L
Share:
Bluesky Email Share Link
  • Mustang Forums
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
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?