another Ford converting

**mmigacz** · 12-13-2013

Originally Posted by derbydad276

we have a winner its starting to look like Ill be able to do this for less than I thought Ill pm you when Im ready and leave ebay out of it

I wont be using headers so I don't think I need to worry about a heated o2 sensor

next question ****
will using this on a engine 50 CI larger affect the ecm? will I need a chip from the beginning?
Im not looking for high performance Im looking for easy starting and economy
also with dual exhaust will I need 2 o2 sensors?

The only reason I could see needing two o2 sensors is if you wanted to toggle between passenger and drive side of the engine (for troubleshooting problems). Someone please correct me if im wrong, but the ecm only gets feedback from one o2 sensor on a obd1 fuel injection system. Choose a side that makes wiring easier.

If your interested, I can post pictures on how I routed the wiring harness on my 351W? Its in a boat, but the routing on the engine could be dupicated.

**dave w** · 12-13-2013

Originally Posted by derbydad276

next question ****
will using this on a engine 50 CI larger affect the ecm? will I need a chip from the beginning?
Im not looking for high performance Im looking for easy starting and economy
also with dual exhaust will I need 2 o2 sensors?

The 1227747 ECM was used on engines ranging from 4.3 liters to 7.4 liters, so any displacement between 4.3 liters to 7.4 liters is well within the factory design.
If you have an engine is different from a factory displacement, 4.3, 5.0, 5.7 or 7.4 liters you will need a custom programmed chip.
Only one O2 sensor is needed for the 1227747 ECM.

dave w

**lionelhutz** · 12-14-2013

The larger engine will require tuning to set it up correctly. If you did install injectors that could flow about 15% more fuel then that would somewhat compensate for the larger displacement. It wouldn't be setup right in the computer, but it would likely allow you to get it running.

The computer only supports 1 O2 sensor so you pick a bank and install it.

**delcowizzid** · 12-14-2013

when i setup conversions i fit O2 bungs in both banks and swap my wideband from side to side and find the leanest side of the engine and then run that side for all tuning monitoring.

**derbydad276** · 12-20-2013

would this work to convert this distributor to work with tbi instead of
machining 2 distributors?
http://www.summitracing.com/parts/ms.../applications/
http://www.ebay.com/itm/FORD-351-351...2dc09d&vxp=mtr

**dave w** · 12-20-2013

Originally Posted by derbydad276

would this work to convert this distributor to work with tbi instead of
machining 2 distributors?
http://www.summitracing.com/parts/ms.../applications/
http://www.ebay.com/itm/FORD-351-351...2dc09d&vxp=mtr

The quick short answer is NO, those parts won't work.

I recommend getting in touch with Dave's Small Body HEI's. http://www.davessmallbodyheis.com/ He does good work. He has done several Ford TBI distributor conversions. Maybe he will do the TBI conversion to the ebay distributor?

I am not the Dave at Dave's Small Body HEI's.

dave w

**EagleMark** · 12-20-2013

Originally Posted by derbydad276

would this work to convert this distributor to work with tbi instead of
machining 2 distributors?
http://www.summitracing.com/parts/ms.../applications/
http://www.ebay.com/itm/FORD-351-351...2dc09d&vxp=mtr

Find a drop in Duraspark distributor and use those wires to hook up to an external mounted EST module.

1534duraspark_with_tfi_and_8_pin_hei_module_revised.jpg

**lionelhutz** · 12-20-2013

You won't find a drop-in large cap HEI that you can use with the fuel injection or the parts to bolt-in modify one. You can use that distributor if you are willing to modify it. You would need to lock out the mechanical advance. I would lock the mechanical at about 1/2 way through it's travel.

You also have to disable the vacuum advance. Not connecting it would do it or fix the plate in position or use one of these things.

http://www.summitracing.com/dom/part...3333/overview/

You also have to change to a 7-pin module from the 4-pin module.

Take a look at this thread, start part way through post 4 for a description of modifying the distributor.

http://www.ifsja.org/forums/vb/showt...510#post607510

Here is a post with the wiring for the small cap module. I believe your harness will have the connector for that module so I'd be tempted to cut out the side of the distributor for that module. That diagram shows a coil + and - terminal . The large cap connects + to the terminal behind the Bat terminal and - to the terminal on the opposite side behind where the tach wire connects. Make sure you run a wire to the middle terminal and ground it.

http://www.jeepforum.com/forum/f8/ig...7/#post9733166

**JeepsAndGuns** · 12-20-2013

Originally Posted by EagleMark

Find a drop in Duraspark distributor and use those wires to hook up to an external mounted EST module.

1534duraspark_with_tfi_and_8_pin_hei_module_revised.jpg

This is what I did. My 79 Jeep cherokee with a AMC V8 came from the factory with a motocraft distributor/ignition. I simply locked out the mechanical advance, unhooked the vac advance and uses a 8 pin hei module mounted to a heat sink just like the diagram mark posted.
I'm thinking this would be the quickest, cheapest, and easyist way to do this.

**derbydad276** · 12-20-2013

Originally Posted by EagleMark

Find a drop in Duraspark distributor and use those wires to hook up to an external mounted EST module.

1534duraspark_with_tfi_and_8_pin_hei_module_revised.jpg

duh ok hit me in the head with a hammer !!!!

**derbydad276** · 12-20-2013

ok 1 more stupid question

speed sensor?????

will I find it on the trans? or the speedometer ?

**mmigacz** · 12-20-2013

Originally Posted by JeepsAndGuns

This is what I did. My 79 Jeep cherokee with a AMC V8 came from the factory with a motocraft distributor/ignition. I simply locked out the mechanical advance, unhooked the vac advance and uses a 8 pin hei module mounted to a heat sink just like the diagram mark posted.
I'm thinking this would be the quickest, cheapest, and easyist way to do this.

I also went this route with my 351W.

2013-12-16_16-54-58_236.jpg 2013-12-16_16-55-23_194.jpg 2013-12-16_16-55-27_663.jpg