Coil suggestion???

[TLC87Eagle]

Great. I checked out all the specs on it and it seems like a good fit. Oddly enough, Accel doesnt recommend it for the AMC motor. From Accel themselves "The coil you have specified is a Ford Duraspark racing coil. I would not reccommend using that unit on an AMC/Jeep". I've placed it on order and with 8mm wires and the larger Cap.  Appreciate the reply.

Rich

Accel must not realize that AMCs and Jeeps used Ford's Duraspark II ignition system for most of the 80s. The components are EXACTLY the same as Ford's. If you even look at a stock distributor, you can see it says "Ford" on it right around the vacuum advance. 

And yes, it is a direct bolt in piece. No cutting, splicing, soldering, crimp connectors, resistors, or anything.
That's why I choose it over the others.
You just pull off the Ford "Horseshoe Collar" and put it on the new coil, and it will even fit in the stock mounting bracket, though I changed mine cause I wanted a new shinny one  .

Good luck with yours, and I hope you enjoy the results.

-Tom

[recomer]

Tom,

I'm guessing you had no issues plugging the factory coil connector onto the Accel coil as your car runs. Mine wont seat correctly on the coil. Looking closer, the lip around the Accel Coil is thicker, the terminals are spread further apart and they are taller than the OEM coil. I thought maybe my connector has shrunk over the years so I bought a brand new connector. Same issue. It doesn't seat on the coil.

Rich

[TLC87Eagle]

I did notice mine didn't slide on as easily as the stock coil, but just a little shove, and it went on there and made contact. It didn't seem like the collar spread out just a little to go around the new coil, but it made connection for me and has worked fine for months.

[TLC87Eagle]

If you can't get anything to work, MSD also makes one for the Duraspark set-up that might have smaller dimensions.
Part Number is MSD 8205. That is if you wanted to send to Accel back and such. Sorry it didn't work for you, hopefully you find something that works out. 

[recomer]

I did notice mine didn't slide on as easily as the stock coil, but just a little shove, and it went on there and made contact. It didn't seem like the collar spread out just a little to go around the new coil, but it made connection for me and has worked fine for months.

Mine wont slide on without seating it with a hammer...the lip around the coil is too big, the terminals are spread out too far to fit and too tall also....  I slammed a get messages to accel and asked WTF.

[TLC87Eagle]

Yeah, I'd see what is going on with that. Mine was a little bit big, but it slid on there with a decent amount of force.

[recomer]

If you can't get anything to work, MSD also makes one for the Duraspark set-up that might have smaller dimensions.
Part Number is MSD 8205. That is if you wanted to send to Accel back and such. Sorry it didn't work for you, hopefully you find something that works out. 

Just looked up the specs on the MSD. Wonder what affect the primary resistance being .7 Ohms will have? (being orginal has 1.3/1.4 or something like that). Thats why I picked the accel, same/close primary resistance as orginal. Will I have to change or bypass the resistor wire?

Edit: Answered my own question. The installation instructions state: Note: The Blaster 2F Coil is designed as a replacement for coils with a "horse shoe" connector. When installing to a factory Ford ignition system, a 0.8 ohm ballast resistor or resistor wiring MUST be installed. MSD offers this Ballast Resistor as PN 8214.

[ammachine390]

If you can't get anything to work, MSD also makes one for the Duraspark set-up that might have smaller dimensions.
Part Number is MSD 8205. That is if you wanted to send to Accel back and such. Sorry it didn't work for you, hopefully you find something that works out. 

Just looked up the specs on the MSD. Wonder what affect the primary resistance being .7 Ohms will have? (being orginal has 1.3/1.4 or something like that). Thats why I picked the accel, same/close primary resistance as orginal. Will I have to change or bypass the resistor wire?

Edit: Answered my own question. The installation instructions state: Note: The Blaster 2F Coil is designed as a replacement for coils with a "horse shoe" connector. When installing to a factory Ford ignition system, a 0.8 ohm ballast resistor or resistor wiring MUST be installed. MSD offers this Ballast Resistor as PN 8214.

That won't work. If the coil is .7 ohms and the resistor is only .8 ohms, then you only have a total resistance of 1.5 ohms. That will cause a current of 8 amps to flow through the ignition module. The module can only handle up to 5 amps. You need a total resistance of at least 2.5 ohms. The only coil that you can use with the stock ignition system, and still get all the potential of the coil is the pertronix flamethrower with a primary resistance of 3.0 ohms.

[recomer]

If you can't get anything to work, MSD also makes one for the Duraspark set-up that might have smaller dimensions.
Part Number is MSD 8205. That is if you wanted to send to Accel back and such. Sorry it didn't work for you, hopefully you find something that works out. 

Just looked up the specs on the MSD. Wonder what affect the primary resistance being .7 Ohms will have? (being orginal has 1.3/1.4 or something like that). Thats why I picked the accel, same/close primary resistance as orginal. Will I have to change or bypass the resistor wire?

Edit: Answered my own question. The installation instructions state: Note: The Blaster 2F Coil is designed as a replacement for coils with a "horse shoe" connector. When installing to a factory Ford ignition system, a 0.8 ohm ballast resistor or resistor wiring MUST be installed. MSD offers this Ballast Resistor as PN 8214.

That won't work. If the coil is .7 ohms and the resistor is only .8 ohms, then you only have a total resistance of 1.5 ohms. That will cause a current of 8 amps to flow through the ignition module. The module can only handle up to 5 amps. You need a total resistance of at least 2.5 ohms. The only coil that you can use with the stock ignition system, and still get all the potential of the coil is the pertronix flamethrower with a primary resistance of 3.0 ohms.

It doesnt say it but Im wondering if they mean add the .8 ohm ballast resister AND leave the OEM resistive wire in place.

[ammachine390]

It doesnt say it but Im wondering if they mean add the .8 ohm ballast resister AND leave the OEM resistive wire in place.

Well if you do that, you will have so much voltage drop across the ballast resistors (9.0526 V), that your coil would only receive 2.9474 V to the coil. With that much voltage input, you will only get a maximum of 11053 V to the plugs. That's even less than stock.

[recomer]

I'm still dragging this out with Accel. So far thier answers don't make any sense. last response they told me was to use the 140001 coil and clip my OEM connector off. Of course I'd have to use an external resistor too as the 140001 only has .7 Ohms primary resistance. I'm thinking of taking a dremel tool to the horseshoe connector and adjusting it slightly to fit better.

[84eaglelmz]

Ok, so gronk is no where to be found, so what part numbers should i get for a complete tfi upgrade. I read the other posts, but just want one post with best part numbers and what they are. Thanks

[mudkicker715]

Both of my strokers have used off the shelf msd.

[84eaglelmz]

so all the parts are for a ford 300? What year should i ask for when i call the auto parts store. They had no idea what i wanted. 

[Draekon]

I think I asked for parts from a 1985 ford truck.  You need a cap, cap adapter, rotor, and plug wires.