EFI,(my head is spinning, its starting to slow down.)

[Mark]

I read, re-read, and then re-read 40 times the Bronco Driver magazine articles that were recently re-printed.
Here's a linky link.

http://www.fordfuelinjection.com/?p=62

Once you've done it, it all makes sense ... kinda, then when you do it again, it makes better sense! lol

 

[Pedestrian]

Just send me your Bronco and about $2K. I may or may not have it running correctly by Christmas.......






2011;D

 

[ransil]

you need to make a lot of decisions. most are made by what you find and how much you want to spend.

1. motor use current or get complete with the EFI.
need to consider the imbalances of the flex plate , fly wheel and harmonic balancer with both choices.

2. accessories are you gonna use the serpentine or stock V belts.
most stock EFI serpentine will have radiator clearance issues, Explorer accessories fix the issue, v-belt you will still need to address #1.
removing the AC & smog pump will need creative belt routing and or eliminator pulley's or brackets.

3. MAF or Sd
speed density you should be able to find at least a dozen setup in any junk yard, MAF you will need to check a dozen yards to find one.

4. harness
buy the RJM for $500 or Ford motor sports ( or what ever there name is today) or get the donor and strip it down , inspect , reroute wire to make it fit the bronco. time vs money here time will be about 20 hours & $50 vs $500 off the shelf. built you own you will learn something, screw it up along the way you will learn alot.

5. Fuel delivery
need to add high pressure EFI lines from the HP pump to the motor and add a return. decision to use a stock tank and adapt a return line to it or buy an EFI tank from a vendor. also some use a LP & HP pumps some only use a HP pump, got dual tanks need to work that in too. for fuel lines you can get fancy braided stuff with -an fittings buy rubber EFI line from and auto parts store $6 a foot or get some EFI lines from a 90's Ford and work them in. either way the Ford fuel rails need a fitting to adapt to what ever you are using. you will also need a LP filter and a HP EFI fuel filters. canister purge is also nice feature to have, come free with a doner motor or you can throw it in the "I don't need all this government mandated smog stuff pile"

6. Pin 30 (NSS) figure out what it does, why it does and how its hooked up, every other EFI system has this screwed up. This pin should be listed on snoops with all the misinformation out there on it. ;D

 

[ransil]

for those of you that are above average in installing EFI from scratch who wants to do an EFI TECH article like was done with the explorer tech article.

PM me..

I made lots of notes and took pics on my last install. just need to get them into the computer and organized with inputs for different options. This will be a winter project when I have more time.

Sorry about the hijack... back to your thread..

 

[stupidboy]

for those of you that are above average in installing EFI from scratch who wants to do an EFI TECH article like was done with the explorer tech article.

PM me..

I made lots of notes and took pics on my last install. just need to get them into the computer and organized with inputs for different options. This will be a winter project when I have more time.

Sorry about the hijack... back to your thread..

Damn you hijackers, lol, thanks for the info.

 

[stupidboy]

ransil, what are you running for your set up?

 

[NYLES]

Yours runnin yet? This really a fun learning experience, have fun!!!!!

 

[Greg_B]

Best way to do it is to find a complete donor first. Then take everything from that. Best single donors are '88-'93 mustang. Otherwise you'll be piecing it together and that will require some additional research.

This is exactly what I did... I went to a Mustang junk yard and bought a complete wreck 93 mustang with about 36k miles on it. (this was at least 10 years ago) I used a lot more parts from the mustang than I thought I would. I wish I had kept the transmission now because I want AOD. I even used the gas pedal.... A lot of relays... emergency fuel shut off... all kinds of stuff. It was really simple doing it this way. I had never even pulled a engien let alone done a complete engine EFI swap.

Lots of smart people on this board and the old Bronco.com list.

Greg

 

[itsabronco]

I just finished the conversion on my '72. Not completely finished but running and driveable. Donor was a 1991 stang 5.0 auto. . Conversion went sweet with the help from everyone on this site. IMHO, it is way way way way way easier to find your donor,
( a stang ) and have all the parts you need right there. I searched for several months till I found the right one. Didnt care what body looked like, I just wanted the good stuff. Found one that was sitting for awhile, bought it for a grand, stripped it, sold chassis for 700, bought RJM harness with that and a few other goodies. First try, it fired right up. Scared the crap out of me because I only had the headers on it and it was loud. I was only priming the fuel syst. and decided to crank it alittle and it came to life instantly. If your interested, I can give you specifics, its still fresh in my mind. a bit time consuming for the first time, but worth it. You just have to pick a direction and stay with it or you WILL go nuts.

 

[ransil]

ransil, what are you running for your set up?

First one I did I got everything from a 92 mustang with 18K miles on it.

My trail bronco, first round was a speed density setup , I got everything from an 88 Cougar, ran it for 2 years block was bad, sold the efi stuff to a guy that had a shitty carb, he is lovin' life now..Picked up an almost complete 89 mustang motor and pieced together what was missing.

 

[stupidboy]

First one I did I got everything from a 92 mustang with 18K miles on it.

My trail bronco, first round was a speed density setup , I got everything from an 88 Cougar, ran it for 2 years block was bad, sold the efi stuff to a guy that had a shitty carb, he is lovin' life now..Picked up an almost complete 89 mustang motor and pieced together what was missing.

So the speed density swap can be done as easy as maf?

 

[ransil]

So the speed density swap can be done as easy as maf?

YEP and you can find at least a dozen of them in any junk yard vs the maf which you would need to check a dozen junk yards before you find one.


EFI on a bad day will out preform any carb on a good day.
I'm sure a carb guy will jump in here and argue this, I have only seen 2 good carb running on the trail both were stock motorcrafts and they ran great.
I have seen plenty of bad carbs..However for a street Bronco that never see's the trail I could see a carb being used.

 

[NYLES]

Well Im a carb guy and love my Demon on the street.....but for that one single trip a year to OCBR....Gotta have EFI!!!!! Seems I could get carb to do pretty good on the trail except when you get in that tight spot .....and I swear itll die everytime when ya need it the most! Then its no brakes no power sterrin and pray itll fire back up....Ill get slammed that I swore never go EFI but man I cant wait to get it done.

Im going MAF and just rounding up a part at the time right now got it down to needing new sensors and a wiring harness only thing holding me up is Ive gotta do a cam swap Comp tech stumbled a lil but was concerned with idle surg enough to tell me to swap it out.

I know youve read my EFI thread I was scared of EFI but after all the info Ive gotten on here I think itll be pretty simple conversion....IM ready!

 

[stupidboy]

Well Im a carb guy and love my Demon on the street.....but for that one single trip a year to OCBR....Gotta have EFI!!!!! Seems I could get carb to do pretty good on the trail except when you get in that tight spot .....and I swear itll die everytime when ya need it the most! Then its no brakes no power sterrin and pray itll fire back up....Ill get slammed that I swore never go EFI but man I cant wait to get it done.

Im going MAF and just rounding up a part at the time right now got it down to needing new sensors and a wiring harness only thing holding me up is Ive gotta do a cam swap Comp tech stumbled a lil but was concerned with idle surg enough to tell me to swap it out.

I know youve read my EFI thread I was scared of EFI but after all the info Ive gotten on here I think itll be pretty simple conversion....IM ready!

Yeah, I read your thread and thats where my head began to spin with all the input, but now it is getting clearer and I,m ready too. I have a buddy that has a junk yard with nothing but ford stuff, he,ll have everything I need when I decide sd or maf, He hates efi and changes everything over to carb, so he may even have something off all ready, I just need to be clear on what to look for so that I'm not buying the wrong parts. Thanks for the input.

 

[NYLES]

Hey if you go SD Ive noticed that the aftermart harness is about a $100 cheaper.

 

[matt w]

Just send me your Bronco and about $2K. I may or may not have it running correctly by Christmas.......






2011;D

And I almost got in line!

 

[stupidboy]

Hey Nyles, I noticed in your signature that your running 427 430 gears, I was thinking of running those, how do you like them?

 

[NYLES]

Like em! anymore would have me really wound up on the highway with a c4. Running 33's goin to 35's. JW runs em and likes 37's with a C4 at highway speeds.

 

[stupidboy]

I'll have 35's and c4 and I have had 456 before and feel that highway speeds it will be wound out and 411 I have had and like but with those big tires probably not enough.

 

[HoosierDaddy]

Keep reading , researching and asking questions.

The FFI site that was linked to earlier http://fordfuelinjection.com/ is a tremendous asset. Dig around there for about a month , you will be amazed at what you can find in some of the links.

When you feel comfortable enough to move ahead and start buying parts , then you are ready.

DO NOT GO OFF HALF COCKED , you will end up buying and rebuying and wasteing too much time and money. Get your game plan together and stick to it.

By the way , in reply to a much earlier post , putting the mustang style EFI on a 351 really isn't all that difficult , fairly simple actually , however , it is usually best to install an unknown EFI (new to you) on a known good motor (one that you are running right now and is running well) THEN later you can do a motor swap after you are familiar with the EFI.

I can't imagine the headaches that could arise if you can't get a new (unknown) motor with an untested EFI conversion to fire up like it is suppossed to.

Last thing , feel free to ask questions here , even if you know they have been asked a hundered times before. This place is not like the other flame happy forums out there.