Topic: 22r to GM ignition swap? any body try this?

[86toyota]

my ignitor assembly my 86 22r went out and i am having a hell of a time finding a decent one with the right part number. A new one is $350+ and being a college student, I cant really afford that at the moment. So my plan is to intall this conversion untill i can either find or afford an oem toyota module. Tell me what you think of this http://bbs.zuwharrie.com/content?topic=85514.0

[SloCrawler]

I've heard of this, I was always curious if they works better or worse than stock

[OOPS]

I do not know if it is my friends bad luck or if he mouted the dist. wrong or something is wrong with the dist. He has an Early Bronco with a Ford engine, He installed a Pro=Comp Dist. It uses a GM Module. In about two years he has burned out 7-8 modules.

[H8PVMNT]

I've been thinking about this on my 1980.  I use it all over Montana for a work truck and there are plenty of GM parts everywhere you go but very few Toyota parts, even used...  I have had a bad ignitor allready and swaped it for an old one but last week either the ignitor or the pickup coil were messing up but now it is running good again and it all test OK.

I am all out of ignitors...

[86toyota [OP]]

idk whats going on. i couldnt get that to work and i couldnt get an msd set up to work. but when i hook up my buddies toyota oem coil and ign. mod. it starts up just fine.

[ccolby3]

Did you use the MSD box and coil for the set up? The box needs the pick from the distributor, the box runs the coil.

[86toyota [OP]]

i used the stock toyota oem coil. MST tech help said that wouldnt be a problem. only thing i can think of is the coil is shot. but its only got 10,000 miles on it and NAPA tested it and said it was good

[ccolby3]

When I did my set up, I used the MSD box and coil. The truck ran great with it. You used the pick up from the distributor and   the box? There are two wires that come off the msd box and hook up to the coil, plus the ones that run down to the distributor for the signal. You wired the box correctly? there are only a couple of wires.

[86toyota [OP]]

ya. 2 wires go to battery, 2 wires go to dist., 2 wires go to coil. I even called msd and used an only diagram and still nothing.

[Oddmar]

Bolt the GM ignition module to a computer processor heat sink and 12vdc computer fan (the cheap kind) or the module will overheat and burn out.

A GM module is usually $15, and a GM coil is also usually $15 at the parts store.

[81_yota]

idk about the gm setup i did it all and run my power fromthe hot wire that came off the old unit test everything all hooked up right but still didnt get spark so it seemed like something more is messed up

[86toyota [OP]]

already got an oem unit for 60$. Thanks tho guys

[emsvitil]

On the slantsix site (slantsix.org) the 4pin HEI module is considered to be a very reliable upgrade (better than the 4 or 5 pin mopar module and pertronix when moving from points).  The variable dwell is a good feature.

You need to mount the HEI module on an aluminum heat sink or plate for the most reliability to avoid burning out the module.

[Gnarly4X]

I've heard of this, I was always curious if they works better or worse than stock

RESURRECTION!!

I did this with a GM ignitor module from Autozone back in 2000.  The GM module was $5 or $6 as I remember.

I took me about 1 hour to install it in my stock ignitor module in my 1985 22R.  It worked perfect.

Gnarls.

[sirdeuce]

Best to use a coil rated for the HEI system as the GM ignitor is a high current unit. Can damage standard coils with it.

[Gnarly4X]

Best to use a coil rated for the HEI system as the GM ignitor is a high current unit. Can damage standard coils with it.

My GM ignitor replacement worked perfect?

I still have the photo supplied Benjamin back in the day on Offroad.com.  There is a resister that is part of the circuit.

Gnarls.

[obrut]

What was the resistor used for?  So you could use a non HEI coil?  I was thinking of doing this now before mine goes out and I can't get something in a hurry.  HEI modules are sold everywhere... I probably have a bunch in a coffee can somewhere