• Mustang Forums
  • 1965 - 1973 Classic Mustangs -General/Talk-
  • Classic Mustang Specific Tech

EFI Experience

  • Thread starter Thread starter 347Fastback
  • Start date Start date Jan 3, 2006

347Fastback

Member
Nov 30, 2003
340
0
17
Central Coast
Jan 3, 2006
#1
  • Jan 3, 2006
  • #1
I am collecting parts to complete a EFI swap on my 65 fastback and would like to know what others experienced during the swap and what pitfalls to avoid etc...
 

Tubo(2-bo)

Member
Mar 25, 2004
279
0
16
Ft Walton Beach FL.
Jan 3, 2006
#2
  • Jan 3, 2006
  • #2
The hardest part of the EFI conversion, was the harness. The rest is very straight foreward wrench bending. An Exploder(Explorer) 5.0 utilizing ECC-IV would be my choice. Convet to front sump, relocate dipstick. the 5.0serpentine works fine, research "Short Belt". Serpentine WP is reverse flow, good time to utilize an aluminum radiator.
There are many here who will point you to Ron Morris, who to me is way overpriced. Insted I reccommend, http://fordfuelinjection.com/ & Ryan McCormmack (Fireguy 5.0) Study the whole site, in particular concerning the harness, the Fuel Injection Harness Power circuit depicted there. If you are DIY definately use that example. A more simple way would be, to just order a harness from them, and use it in confidence.
I wanted to get a base line of the performance difference, between my old 302(mild built, DOOE heads, 4BBl, etc.) and the new EFI. If you arent really interested in that, study up in the 5.0 area of Stangnet, and choose your MAF, throttle body, & intake in advance, use them in the initial build.
My eventual upgrade will have; 70mm MAF, 65mm tb, an Exploder type GT-40intake, and aluminum head w/ 1.6rr's. Pretty much just up to Cobra specs, I could have just as easily started with these parts vs, the Bone stock 92 engine I'm using.
Pick your headers to fit your trans, AOD is best with shorty's.
Utilize the Stangnet Search feature!
 
You must log in or register to reply here.

Similar threads

D
Yet another v8 swap
  • dulcimerbob
  • Sep 19, 2026
  • 1974 - 1978 Mustang II Talk & Tech
  • 4 5 6
Replies
110
Views
3K
1974 - 1978 Mustang II Talk & Tech Sunday at 2:18 PM
LILCBRA
C
Help with manual conversion
  • CPH89LX
  • Aug 23, 2026
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
  • 2
Replies
20
Views
581
1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- Aug 27, 2026
2000xp8
F
Difference between 83-86 EFI and 87-97 gas tanks?
  • ForeverDrivin
  • Mar 30, 2026
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
Replies
5
Views
507
1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- Mar 30, 2026
ForeverDrivin
F
B
Stuck
  • bshipley
  • Aug 27, 2026
  • 1996 - 2004 SN95 Mustang -General/Talk-
Replies
1
Views
129
1996 - 2004 SN95 Mustang -General/Talk- Aug 28, 2026
squeak93
T
Engine 1970 302 boss block
  • TOM B
  • Jan 4, 2025
  • Classic Mustang Specific Tech
Replies
3
Views
565
Classic Mustang Specific Tech Jan 14, 2025
lqbbe
L
Share:
Bluesky Email Share Link
  • Mustang Forums
  • 1965 - 1973 Classic Mustangs -General/Talk-
  • Classic Mustang 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?