6 Cylinder duraspark

[nboost]

I was at the local salvage yard today and found a 81 Ford Granada with a 200 I6. It has a duraspark ignition on it. Will this work on my dad's 66 bronco with a 200 I6 in it? How hard are they to wire up?

 

[Ohio Bronco 21]

Yes it should. Its a good system and we have some threads on here with the wiring diagrams.

 

[jckkys]

Buy it, you won't find a better ignition. '81 was the last year for the Duraspark I.

 

[nboost]

I guess I just wire it up like this

 

[jw0747]

be sure to get the module, the wires and the distributor.

 

[bmbm]

Dsii

And the coil. The Granada usually had a 250. That late model head is a good item to have. If it is a 250 that is a nice upgrade for a Bronco if you have a 200. The air cleaner is good also.

 

[Jdgephar]

I wouldn't wire it like that. Following that diagram does two things. 1) your coil is only powered through the resistor wire. The "I" wire from the start relay is no longer giving the coil higher voltage to help start. 2) the duraspark box is going to be running at some unknown lower voltage than the 12-14 volts it should get, because of the voltage drop from the resistance wire.

This is a better diagram to use:

 

[nboost]

In both diagrams they look like they bypass the resistor wire? I'm not great in electrical so it is kinda confusing to me.

 

[ntsqd]

I wouldn't wire it like that. Following that diagram does two things. 1) your coil is only powered through the resistor wire. The "I" wire from the start relay is no longer giving the coil higher voltage to help start. 2) the duraspark box is going to be running at some unknown lower voltage than the 12-14 volts it should get, because of the voltage drop from the resistance wire.

This is a better diagram to use:

The problem that I have had with wiring done like this is that in some, but not all, cases the starter won't stop cranking when the key is released. Simply moving the module's wire to the I terminal on the relay usually fixes this.

 

[Jdgephar]

Do you mean the white wire from the duraspark connected to "I" instead of "S"? That should work just as well.

 

[ntsqd]

Yes, "I" means Ignition and is a switched contact. Power to the "S" terminal from any source will keep the relay closed and the starter cranking.

 

[Jdgephar]

In both diagrams they look like they bypass the resistor wire? I'm not great in electrical so it is kinda confusing to me.

The red wire for the duraspark box you want hooked to a 12V source that is on with the key in Run or Start, and off when the key is in Off.

The white wire for the duraspark box gets connected to a 12V source that is on only when starting (like the "I" terminal on the starter relay). This wire retards the timing by 3-4 degrees to help start. Most likely the truck would run fine without it even connected.

The resistor wire on your truck still needs to be connected to the coil +