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Topic: cfi to sfi (Read 1973 times) previous topic - next topic

cfi to sfi

what things would i need to switch for my v6 3.8 cfi to be sfi without trading motors.:cougarsmily: &:birdsmily:
84 el camino ss-daily driver(efi mild sbc,2004r, posi 3:42 rear.)
84 mercury cougar v6- was a v6/ nitrous drag car, going back to mostly stock
81 chevy malibu-protouring/  drag car.( efi sbc supercharged 283 that will rev to the moon, 2004r, 4:11 posi rear)

cfi to sfi

Reply #1
As a guess, Intakes, harness, injecters, fuel rail, fuel pressure regulater and some free time.

cfi to sfi

Reply #2
would the ecu have to be changed?
84 el camino ss-daily driver(efi mild sbc,2004r, posi 3:42 rear.)
84 mercury cougar v6- was a v6/ nitrous drag car, going back to mostly stock
81 chevy malibu-protouring/  drag car.( efi sbc supercharged 283 that will rev to the moon, 2004r, 4:11 posi rear)

cfi to sfi

Reply #3
An 87 or 88 v8 wiring harness  or 88 v6 wiring harness plus injectors intake, sensors etc. What else do you have planned because you'll only be picking up about 20 horspower or so with this swap? I mean if you're going to convert the harness to sefi why not just throw a 302 in and be done with it?

heres a little guide on how too hook up a v8 harness in an 87 v6 car made by bondo cougar. I have yet to finish my project and test this all out but this worked for him. Come spring I'll be using it to hook up my ho v8.

 http://www.filefactory.com/file/f742ec/

Actually this should be put on the site Eric or in a sticky under engine swaps.
1987 Tbird 5.0 swap, go fast mods coming soon....

cfi to sfi

Reply #4
I can email it if anyone wants it. that file upload site is kinda scary..........
1987 Tbird 5.0 swap, go fast mods coming soon....

cfi to sfi

Reply #5
The ECU will have to be changed.

cfi to sfi

Reply #6
which v6 tfi or sefi is better for proformance stuff or turbos instead of switching to a 302 or bigger v8. also
would switching to a turbo coupe motor be easier than a v6 to v8?
84 el camino ss-daily driver(efi mild sbc,2004r, posi 3:42 rear.)
84 mercury cougar v6- was a v6/ nitrous drag car, going back to mostly stock
81 chevy malibu-protouring/  drag car.( efi sbc supercharged 283 that will rev to the moon, 2004r, 4:11 posi rear)

cfi to sfi

Reply #7
Both switching to SEFI or a Turbo-4 would require switching wiring harnesses.

cfi to sfi

Reply #8
Basicaly, no matter what you do involves switching the harness and computer. I had a 5.0 CFI in my car, and you really can't do to much before really getting into it. 5.0 and turbo 4 are the best choice IMO. Turbo 4 would be a good swap. If you ask around, I'm sure you can get info on most if not all of your options.

cfi to sfi

Reply #9
besides the switch off the harness and ecu would basically everything else beside transmission be the same an link up easy?
84 el camino ss-daily driver(efi mild sbc,2004r, posi 3:42 rear.)
84 mercury cougar v6- was a v6/ nitrous drag car, going back to mostly stock
81 chevy malibu-protouring/  drag car.( efi sbc supercharged 283 that will rev to the moon, 2004r, 4:11 posi rear)

cfi to sfi

Reply #10
besides the switch off the harness and ecu would basically everything else beside transmission be the same on link up easy?
84 el camino ss-daily driver(efi mild sbc,2004r, posi 3:42 rear.)
84 mercury cougar v6- was a v6/ nitrous drag car, going back to mostly stock
81 chevy malibu-protouring/  drag car.( efi sbc supercharged 283 that will rev to the moon, 2004r, 4:11 posi rear)

cfi to sfi

Reply #11
besides the switch the harness and ecu would basically everything else beside transmission be the same on link up easy?
84 el camino ss-daily driver(efi mild sbc,2004r, posi 3:42 rear.)
84 mercury cougar v6- was a v6/ nitrous drag car, going back to mostly stock
81 chevy malibu-protouring/  drag car.( efi sbc supercharged 283 that will rev to the moon, 2004r, 4:11 posi rear)

cfi to sfi

Reply #12
I went to carb and everything still works. So I'd say yes.

cfi to sfi

Reply #13
will a v6 tranny work with a 302 v8? since i know that a turbo coupe motor wont fit up to a v6 tranny.
84 el camino ss-daily driver(efi mild sbc,2004r, posi 3:42 rear.)
84 mercury cougar v6- was a v6/ nitrous drag car, going back to mostly stock
81 chevy malibu-protouring/  drag car.( efi sbc supercharged 283 that will rev to the moon, 2004r, 4:11 posi rear)

cfi to sfi

Reply #14
What tranny is in it ( sorry not a V6 guy).