So who is running EFI?

What system are you using?

what would you do different now?

I would like to put an EFI system in my scout. I did search and read but did not find much in the line of details about how to do it. I found a bunch of info on the megasquirt and do not wish to go that way.

I would like to get the parts from a Chevy 305 and adapt to the IH 304 in my truck. The displacement is very close and should be able to adapt the TBI to the intake manifold easy enough. any ideas of where I go from here to get the information about what connects to what and how to get it up a running???

Thanks for you ideas and help.

Ritch BTW :flipoff2: cause I have missed you all so much...

:shaking: http://www.justinternationals.org/international-fuel-injection.htm

Yeah, I've got a Chevy TBI system on my 345. All the "stuff" hooks up to the same "things" it did on the GM engine. You have to mount all those sensors on your IH. I chose the GM system because it controls spark timing AND fuel delivery.

The first hurdle to overcome was getting the IH distributor to send a trigger signal compatible with the GM ignition module. I stewed on this one for a while until I came across David Ray at Dave's Small-Body HEIs (http://www.davessmallbodyheis.com). He sent me some pictures of a converted distributor for a Ford 351W. Ford used Holley distributors for many of their engines and the top portion of the distributor is virtually the same as the IH Holley distributors. Problem solved... the same coversion Dave does works for IH Holley dist. My donor IH dist. was not in need of a rebuild so I just scavanged the Duraspark parts from the JY and converted my IH Holley dist. into an HEI dist.

The second hurdle to overcome is tuning the system. While using a 305 system on a 304 or a 350 system on a 345 is a good place to start from, there is still work to be done. The stock GM chip will run the engine, pretty well, actually, but it will not be optimumly tuned. The timing curves, volumetric efficiency, and fuel delivery for the two engines are different. The tuning process envolves hooking up a laptop to the ALDL port of the EFI system and log data while you drive around putting the engine under different loads. You then use this data to determine where the engine is lean or rich and adjust accordingly. When you get this close, you can play with the timing curve adding timing here, taking it away there, etc. etc. etc. It's an iterative process.

Each time you make a change to the chip, you have to erase the chip and burn a "new" one with the changes you've made. If you have the $$$, you can pop for an emulator that basically fools the ECM into thinking your laptop is the chip on the ECM and allows you to make real time changes to the chip while the engine is running. Once you get it dial in, you then a burn a chip and pop it in the ECM.

Beware of someone who says they can burn you a chip and send it to you. They can send you something that may be close, but without logging data from YOUR engine, there is no way to tell if your running lean or rich or whatever.... it will NOT be an optimum tune.

the JI site has some good info, but don't settle for it as the end-all be-all of EFI. There are a lot more sites out there that have been tuning and messing with these TBI systems for 10+ years.

I got a the Holley 2d, on a modified 2-barrel manifold, on a 392 w/345 heads.


Open loop cause I been to lazy/cheap to buy a new O2 sensor.


I works, better than a carb, but not stellar. If I were to do it different I'd do the full GM set-up. But the ProJection was a good price when I got it ("used" for a discount) and fixed my POS carb at the time, and the whole GM parts thing was still in its infancy/experimental stage.

http://www.justinternationals.org/Binder-Bench/

Try the fuel injection forum.

http://www.justinternationals.org/Binder-Bench/

Try the fuel injection forum.


I could swear I saw that posted somewhere else just recently...

Thanks for the info - keep it coming if you have anything new to offer. I am a novice when it comes to making the scout run like a real off road rig :D

Ritch

I could swear I saw that posted somewhere else just recently...

Old Scout's link went to FAQ. Mine went to the forums.

There's a full write up by the person who developed the Duraspark conversion to the Holley type distributor. This can be used as an ignition upgrade or as a spark controlled distributor for EFI.
http://www.justinternationals.org/ford-hei.htm

Years before that the Duraspark was used in a Prestolite distributor and although a harder conversion it can be used with or without EFI.
http://www.justinternationals.org/duraspark.htm

There is also another distributor option which is a IH/GM clone which uses the Factory GM small cap EFI distributor top on an IH bottom.
http://www.justinternationals.org/Binder-Bench/showthread.php?s=&threadid=924

There are articles on wiring, air cleaners, mounting your ecm, diagnostic troubleshooting and the only place on the planet to have discussion on tuning IH chips. Affordable Fuel Injection (http://www.affordable-fuel-injection.com/) is a sponsor of the board and helps with research and development with their 20 years experience and lots of guys have these systems running on their trucks.

There's a full write up by the person who developed the Duraspark conversion to the Holley type distributor. This can be used as an ignition upgrade or as a spark controlled distributor for EFI.
http://www.justinternationals.org/ford-hei.htm

Mark,
Bill did not "invent" that Duraspark conversion.... It was being used by others well before Bill even thought about it. I'm not saying that he didn't think of the idea on his own, I'm sure he did, but it certainly wasn't an original thought.

Please show me one other documented installation of the Duraspark ignition in an IH Holley distributor before his. He has developed it, tested it, troubleshot others and shared it with everybody.

I posted the link to one much earlier in a Prestolite distributor but that was never intended to run EFI. It was just an ignition upgrade.

:shaking: :rolleyes: :shaking: Go ahead.... cling to your little fantasy if that helps you sleep at night. This lame argument isn't worth that time I've already spent on it just typing this post........

I know its a little off topic, but it was not Al Gore, but I who invented the internet :D

Go ahead.... cling to your little fantasy if that helps you sleep at night. This lame argument isn't worth that time I've already spent on it just typing this post........ Must be that time of the month! :confused:

I know its a little off topic, but it was not Al Gore, but I who invented the internet That whole presidential era kinda revolved around lies. :mad3:

Thanks for the internet! :D

I cheated and bought a Vortec 3fitty and carved a 1/2" plate adapter with dual bolt patterns. Countersunk the chebby pattern and bolted it to my t-19.

I cheated and bought a Vortec 3fitty and carved a 1/2" plate adapter with dual bolt patterns. Countersunk the chebby pattern and bolted it to my t-19.

The thing probably cost about the same as the headaches of just injecting an IH...

I am thinking that you have the wisest method Slip :D

I like the info I have been able to get so far - I just have not seen any wiring info yet. Anyone know where the wireing schematics are at???

Ritch

There are 7 links at the bottom of this page (http://www.diy-efi.org/gmecm/ecm_info/1227747/). They are .jpg's showing the pin outs and wiring schematics for the sensors for the commonly used 1227747 ECM. You can back up to to this page (http://www.diy-efi.org/gmecm/ecm_info/) and look for info on other ECMs.

Or you could go to the Just Internationals forums and talk with guys that are doing it. They have Scouts that run, drive, test and improve. There's also a pinout wiring diagram with a full write up on the different aspects related specifically to Scouts and IH. A lot of this information has originated from the people who shared their knowledge on DIY-EFI.org and refined to the IH.

As far as wanting to be able to run up side down? This has been done. They do run upside down! Luckily no one was hurt! :D

Link to Just Internationals ECM pinout ! (http://www.justinternationals.org/Binder-Bench/showthread.php?s=&threadid=1291)

As far as wanting to be able to run up side down? This has been done. They do run upside down! Luckily no one was hurt! :D


I know "extreme" angles are the reasona lot of people desire EFI, but I honestly, really only want it for the maintenance/tuning/performance aspect.

I find that my rig tends to lose oil pressure on steep angles before the engine starts sputtering. More angle from the injection isn't going to change the fact that the engine isn't oiling itself any more!

I know "extreme" angles are the reason lot of people desire EFI, but I honestly, really only want it for the maintenance/tuning/performance aspect.

I find that my rig tends to lose oil pressure on steep angles before the engine starts sputtering. More angle from the injection isn't going to change the fact that the engine isn't oiling itself any more!

Well I have lost oil pressure going down hill but was OK going up.

A friend has an Edlebrock that runs great, but will flood terrible going up. He just changed to TBI system he won at Binder Bash from the sponsor of our IH Fuel Injection section, Affordable Fuel Injection. He's way happy!

But I do agree, just the maintenance, performance and No More Tuning! I started to forget to check the oil because I was never under the hood adjusting the carburator... :D

I know "extreme" angles are the reasona lot of people desire EFI, but I honestly, really only want it for the maintenance/tuning/performance aspect.

I find that my rig tends to lose oil pressure on steep angles before the engine starts sputtering. More angle from the injection isn't going to change the fact that the engine isn't oiling itself any more!

Time for a dry sump! :D

Then to add a pickup to the valve covers... :D

Link to Just Internationals ECM pinout ! (http://www.justinternationals.org/Binder-Bench/showthread.php?s=&threadid=1291)

Nice loop through the JI website linked right back to the very same source at diy-efi.org :shaking:

Are you still breathing? What a fawkin' waste of perfectly good air.

Nice loop through the JI website linked right back to the very same source at diy-efi.org :shaking:

Are you still breathing? What a fawkin' waste of perfectly good air.

It seems to be an extraordinary effort to pimp his website?

Ha Ha Ha....careful you HARDCORE bastards.... :laughing:

You don't want to get bad mouthed on the BB... :D

It seems to be an extraordinary effort to pimp his website? It's a club website! It's where it's happening now if you want to participate. I make not a nickel from the Just Internationals web site. All volunteer. IIRC it was Old Scout, a moderator who referred to the IH Fuel Injection forum first.

I'd say I was defending it! Tried nicely at first! But I guess that's over!

Torc you should never miss a good opportunity to keep your mouth shut!

You were a founder of the IH Fuel injection mailing list then forums. Then had a disagreement with Bill and others (not me) and you left! That's fine! But don't think you can get away with bad mouthing me or my clubs website. You acted like a whiny little girl then and your doing the same thing now. Grow Up and Shut Up!

OK I was still nice, do you want to continue Torc?

How about we end this thread and let the SEARCH button take over. Usefull links have been posted and there are obviously plenty of experts here to fill in the blanks. On the other hand, I do like to watch a good slap fight.

Its really a long distance love fest. Some people stick to thier guns to the very end.

Both of you guys should let the past go. Mark, be the bigger man and just stop responding. Its obvious he's needleing you on purpose. Mechanos, weather your right or wrong, no body cares! Does it really matter if Bill thinks he invented whatever? Its done.

Can we get back to the " what year is my truck" threads please.

...do you want to continue Torc?
Bring it..... if ya got it.

Ooh! An e-fight! I wanna see somebody get his electrons knocked out!

Lets get ready to rumble!