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CFI is not cool.

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    #1

    CFI is not cool.

    And I have a solution.

    Before I get too ahead of myself... I want to know what's involved!!

    What needs to be done in order to swap out for an HO? I don't want the conversion to an HO, I want to swap it. I converted over to an electric fan, and I do have an underdrive pulley set in my garage somewhere too. I'd be swapping my Hedman's over to it also. I do have my 3.55's sitting in my room aswell.

    This is something I may be looking into NEXT winter, when I'll have the money. I just need to know what's involved so I can plan ahead.

    Can't take CFI anymore... she's a slug!!
    1984 Ford Crown Vic LTD, The Murphmobile (RIP)
    1985 Ford Crown Vic LTD, The Murph Deuce (SOLD)
    1978 Chevrolet Caprice Classic, The Crapiece (current project)
    Tags: None
    #2
    What do you mean by a HO? As in an EFI HO motor from an 87-93 Stang, or a carbed HO from an 83-85 Stang?
    88 Town Car (wrecked, for sale)
    Walker OEM duals with muffler deletes

    Comment

      #3
      EFI HO, i'm sure.

      Mostly having a wiring harness from a newer panther, as well as other bits.

      My suggestion? Find a parts car.
      1983 Grand Marquis 2Dr Sedan "Mercules"
      Tremec TKO conversion, hydraulic clutch, HURST equipped!

      Comment

        #4
        Yea, it's the EFI HO swap I want to do. I basically would just need the wiring harness off a newer LTD then?

        I suspect some of the connections would be different too...
        1984 Ford Crown Vic LTD, The Murphmobile (RIP)
        1985 Ford Crown Vic LTD, The Murph Deuce (SOLD)
        1978 Chevrolet Caprice Classic, The Crapiece (current project)

        Comment

          #5
          Well, noone has done it, so this is speculation for the most part. So far, from research and guessing, you'd need this:

          from an 86+ car:
          EFI wiring harness. THis is completely self-contained
          oxygen sensor harness, its the short Y shaped section that unplugs from the main harness

          upper and lower intake
          fuel rail
          fuel lines that run from the fuel rail down the side of the engine
          some high pressure fuel line or a double flare tool and union to couple the frame line to the engine line. EFI cars use a quick connect different from the CFI type. I'd whack the CFI and EFI line just above the connector and couple them together.

          That should be about it. The only interaction between the EFI/CFI harness and the body harness is made at a small electrical plug near the brake booster. This has the ignition wire and the fuel pump wiring. Its in the same spot on an EFI car, no promises that the connectors are the same. I really don't think it will be that hard, it's gonna be the small details that will become time consuming.
          86 Lincoln Town Car (Galactica).
          5.0 HO, CompCams XE258,Scorpion 1.72 roller rockers, 3.55 K code rear, tow package, BHPerformance ported E7 heads, Tmoss Explorer intake, 65mm throttle body, Hedman 1 5/8" headers, 2.5" dual exhaust, ASP underdrive pulley

          91 Lincoln Mark VII LSC grandpa spec white and cranberry

          1984 Lincoln Continental TurboDiesel - rolls coal

          Originally posted by phayzer5
          I drive a Lincoln. I can't be bothered to shift like the peasants and rabble rousers

          Everything looks like voodoo if you don't understand how it works

          Comment

            #6
            I'm alright with time consuming... it'll be in a garage over a season while I'm doing it, lol.
            1984 Ford Crown Vic LTD, The Murphmobile (RIP)
            1985 Ford Crown Vic LTD, The Murph Deuce (SOLD)
            1978 Chevrolet Caprice Classic, The Crapiece (current project)

            Comment

              #7
              I would suggest doing a 1986-1989 EFI-only car, the 1990-1991 CV got an airbag, and extra wiring to boot....from my own comparison, I believe most of the wiring is in the same place, but you are going to have to get essentially the entire underhood harness from the donor car to switch to EFI. I know the ECM is under the power-brake booster on the 85 CFI car, but I can't remember where it is on the 86-up, so you are going to have to do some research on this. I originally asked about this same project about 10 months ago, and got zero feedback, as nobody I know of here or anywhere else has done that swap.

              Comment

                #8
                the ecm is in the same location at least on the 85's

                1986 lincoln towncar signature series. 5.0 HO with thumper performance ported e7 heads, 1.7 roller rockers, warm air intake, 65mm throttle body, 1/2" intake spacer, ported intakes, 3.73 rear with trac lock, 98-02 front brake conversion, 92-97 rear disc conversion, 1" rear swaybar, 1 3/16" front swaybar, 16" wheels and tires, loud ass stereo system, badass cb, best time to date 15.94 at 87 mph. lots of mods in the works 221.8 rwhp 278 rwt
                2006 Lincoln Town Car Signature. Stock for now
                1989 Ford F-250 4x4 much much more to come, sefi converted so far.
                1986 Toyota pickup with LSC wheels and 225/60/16 tires.
                2008 Hyundai Elantra future Revcon toad
                1987 TriBurner and 1986 Alaska stokers keeping me warm. (and some pesky oil heat)

                please be patient, rebuilding an empire!

                Comment

                  #9
                  the wiring for the 90-91 cars is more compact, and there is less junk of the fenderwells (you will need to harvest this junk too) is the airbag wiring part of the ECM wiring harness??? that would be shitty, becuase I plan to use 90-91 wiring on the 85
                  Pete ::::>>> resident LED addict and CFI defector LED bulb replacements
                  'LTD HPP' 85 Vic (my rusty baby) '06 Honda Reflex 250cc 'Baileys' 91 Vic (faded cream puff) ClifFord 'ODB' 88 P72 (SOLD) '77 LTDII (RIP)
                  sigpic
                  85HPP's most noteworthy mods: CFI to SEFI conversion w/HO upperstuff headers & flowmasters P71 airbox Towncar seats LED dash light-show center console w/5 gauge package LED 3rd brake light 3G alternator mini starter washer/coolant bottle upgrade Towncar power trunk pull underhood fuse/relay box 16" HPP wheels - police swaybars w/poly rubbers - budget Alpine driven 10 speaker stereo

                  Comment

                    #10
                    Originally posted by 85crownHPP* View Post
                    the wiring for the 90-91 cars is more compact, and there is less junk of the fenderwells (you will need to harvest this junk too) is the airbag wiring part of the ECM wiring harness??? that would be shitty, becuase I plan to use 90-91 wiring on the 85
                    No. There should be a separate computer for the airbag...it's just a pain to separate the airbag wiring from the rest without a good wiring diagram.

                    Comment

                      #11
                      well, if they did it in a smart way, the efi harness will be totally seperate from anything else. The earlier ones have the efi harness in it's own bundle that comes out independant of the rest of the mess. With some luck thats true on the bomb models too.
                      86 Lincoln Town Car (Galactica).
                      5.0 HO, CompCams XE258,Scorpion 1.72 roller rockers, 3.55 K code rear, tow package, BHPerformance ported E7 heads, Tmoss Explorer intake, 65mm throttle body, Hedman 1 5/8" headers, 2.5" dual exhaust, ASP underdrive pulley

                      91 Lincoln Mark VII LSC grandpa spec white and cranberry

                      1984 Lincoln Continental TurboDiesel - rolls coal

                      Originally posted by phayzer5
                      I drive a Lincoln. I can't be bothered to shift like the peasants and rabble rousers

                      Everything looks like voodoo if you don't understand how it works

                      Comment

                        #12
                        Alright, cool, this does answer some questions for me pretty easily...

                        I read in some posts, not sure what anyone is talking about, lol, not even sure what I'M talking about... but is there anything you have to do with the intake manifold??
                        1984 Ford Crown Vic LTD, The Murphmobile (RIP)
                        1985 Ford Crown Vic LTD, The Murph Deuce (SOLD)
                        1978 Chevrolet Caprice Classic, The Crapiece (current project)

                        Comment

                          #13
                          yeah, intakes are totally different. Need an upper and lower intake from a SEFI motor, the fuel rail, and the injectors. If you're not swapping the cam, just use the lopo 14# injectors. Lowers are the same, HO upper is a bit bigger, need to bore the lopo egr spacer and mod the throttle body to use it properly.
                          86 Lincoln Town Car (Galactica).
                          5.0 HO, CompCams XE258,Scorpion 1.72 roller rockers, 3.55 K code rear, tow package, BHPerformance ported E7 heads, Tmoss Explorer intake, 65mm throttle body, Hedman 1 5/8" headers, 2.5" dual exhaust, ASP underdrive pulley

                          91 Lincoln Mark VII LSC grandpa spec white and cranberry

                          1984 Lincoln Continental TurboDiesel - rolls coal

                          Originally posted by phayzer5
                          I drive a Lincoln. I can't be bothered to shift like the peasants and rabble rousers

                          Everything looks like voodoo if you don't understand how it works

                          Comment

                            #14
                            If I was swapping out motor for motor... would I have to worry about any of that?
                            1984 Ford Crown Vic LTD, The Murphmobile (RIP)
                            1985 Ford Crown Vic LTD, The Murph Deuce (SOLD)
                            1978 Chevrolet Caprice Classic, The Crapiece (current project)

                            Comment

                              #15
                              well, you'd still need the intakes from a SEFI engine. If you were going to do a full HO swap, you'd still need to modify the throttle body and EGR spacer so the intake could be spun. If you run the intake facing the same way it does on a Mustang, you'll have problems with the AC plumbing being in the way, and the battery in the way of the air filter box. If you were doing a full HO swap, I'd still suggest a fuel rail from a Panther since the fuel lines would be in closer to the right spot. Fox (mustang, mark vii) lines are both on the passenger side, instead of the one on each side like a Panther uses. You will need 19# injectors for an HO motor.
                              86 Lincoln Town Car (Galactica).
                              5.0 HO, CompCams XE258,Scorpion 1.72 roller rockers, 3.55 K code rear, tow package, BHPerformance ported E7 heads, Tmoss Explorer intake, 65mm throttle body, Hedman 1 5/8" headers, 2.5" dual exhaust, ASP underdrive pulley

                              91 Lincoln Mark VII LSC grandpa spec white and cranberry

                              1984 Lincoln Continental TurboDiesel - rolls coal

                              Originally posted by phayzer5
                              I drive a Lincoln. I can't be bothered to shift like the peasants and rabble rousers

                              Everything looks like voodoo if you don't understand how it works

                              Comment

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