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

Planning on converting to efi

  • Thread starter Thread starter 91foxbod50
  • Start date Start date Sep 10, 2010
9

91foxbod50

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Sep 26, 2007
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Sep 10, 2010
#1
  • Sep 10, 2010
  • #1
I'm converting to efi on my 85. Has anyone ever had experience doing this?

I need to know what i'll need in accessories to get the job done. I dont know where to start. Car has CFI now.
 

1987LXragtop

Member
Jan 26, 2008
837
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18
Just outside Philly PA
Sep 11, 2010
#2
  • Sep 11, 2010
  • #2
91foxbod50 said:
I'm converting to efi on my 85. Has anyone ever had experience doing this?

I need to know what i'll need in accessories to get the job done. I dont know where to start. Car has CFI now.
Click to expand...

Funny...I just converted to carb
 

Shaolin Crane

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Kommiefornia
Sep 11, 2010
#3
  • Sep 11, 2010
  • #3
your best bet is to get a whole engine out of an 88, and i mean everything, harness, computer, all the smog equipment and do it that way.
 

Mustang5L5

That is…until I whipped out my Bissell
Mod Dude
Feb 18, 2001
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Sep 11, 2010
#4
  • Sep 11, 2010
  • #4
He doesn't need the entire engine. He just needs the efi intake. We put an 85 engine in my friends '88 and retained the entire '85 bottom end, heads, cam and just put the efi manifold on top.

Of course, he will need all the wiring and all that.
 

Shaolin Crane

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Sep 11, 2010
#5
  • Sep 11, 2010
  • #5
Mustang5L5 said:
He doesn't need the entire engine. He just needs the efi intake. We put an 85 engine in my friends '88 and retained the entire '85 bottom end, heads, cam and just put the efi manifold on top.

Of course, he will need all the wiring and all that.
Click to expand...

I know. Im just saying if he's pulling all that crap out of a donor car, it would be cheaper and easier to go on a 50% off day and just grab the whole thing. If you start pulling parts then they will charge you individually(grabbed an entire engine for $100), that way he gets the better heads of the areo cars and make the swap a whole lot simpler
 

1987LXragtop

Member
Jan 26, 2008
837
3
18
Just outside Philly PA
Sep 11, 2010
#6
  • Sep 11, 2010
  • #6
Shaolin Crane said:
I know. Im just saying if he's pulling all that crap out of a donor car, it would be cheaper and easier to go on a 50% off day and just grab the whole thing. If you start pulling parts then they will charge you individually(grabbed an entire engine for $100), that way he gets the better heads of the areo cars and make the swap a whole lot simpler
Click to expand...

x2
 
9

91foxbod50

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Sep 26, 2007
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Sep 11, 2010
#7
  • Sep 11, 2010
  • #7
Well whats everything im gonna need. I have a lx at the shop just collecting dust. I need Engine harness and the dash harness? What about everything for the fuel pump etc? it has central fuel injection now so im not sure if i'll just need the engine harness and thats it. thats the point im confused at
 

Shaolin Crane

Banned
Oct 6, 2008
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Kommiefornia
Sep 11, 2010
#8
  • Sep 11, 2010
  • #8
91foxbod50 said:
Well whats everything im gonna need. I have a lx at the shop just collecting dust. I need Engine harness and the dash harness? What about everything for the fuel pump etc? it has central fuel injection now so im not sure if i'll just need the engine harness and thats it. thats the point im confused at
Click to expand...

You'll need all of that, all the smog equipment, trust me you'll want to be able to smog the car, sharking it is not fun. You'll need the ECU, probably the 02 sensors. If you go on a 50% off day just pull the engine and leave all that **** attached, all the way to the ECU and you'll get it MUCH cheaper, unless you already have a whole care then just start pulling **** out.
 

Mustang5L5

That is…until I whipped out my Bissell
Mod Dude
Feb 18, 2001
43,265
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Massachusetts
Sep 11, 2010
#9
  • Sep 11, 2010
  • #9
Why not just ditch it for a 4v carb setup? I'm all for fuel injection, but in this case it would be cheaper to go true carb and not efi.
 

Shaolin Crane

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Kommiefornia
Sep 11, 2010
#10
  • Sep 11, 2010
  • #10
Mustang5L5 said:
Why not just ditch it for a 4v carb setup? I'm all for fuel injection, but in this case it would be cheaper to go true carb and not efi.
Click to expand...
Cause he lives in cali and it probably wouldnt pass smog
 
9

91foxbod50

Member
Sep 26, 2007
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Sep 11, 2010
#11
  • Sep 11, 2010
  • #11
I was debating on carb, but after dealing with a carb car for a couple of days i just hate it. Sucks to start throttle response is **** compared to efi. Just runs like crap most the time. Nothing beats a nice calm steady ride that goes when u want it to. Plus i wouldnt mind gaining some knowledge in the process.

Plus what shaolin said lol
 

Mustang5L5

That is…until I whipped out my Bissell
Mod Dude
Feb 18, 2001
43,265
17,952
224
Massachusetts
Sep 11, 2010
#12
  • Sep 11, 2010
  • #12
Good enough reason.

Unsure what fuel pump the CFI setup has, it might be good enough. Does the cfi have a return fuel line setup like efi? If not that will need to be added. You'll need the harnesses, and entire efi top end. If ypu start with stock 5.0ho parts it will be cheaper since intakes and injectors and stock mafs and etc are cheap. Get it running and then upgrade.
 
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