What happens if I dont use the resistor wire? Im re wiring the car right now and trying to figure out if I really need the resistor for the coil. If I get a new coil do i need the resistor? I guess what Im asking is whats the point of the darned resistor wire???

I want a new ignition..

 

That resistor wire can save buying coil after coil from running 12-14 volts to it.

The ford ignition runs on 7-9 volts ..achieved by having a 61" length of resistor wire between switch and the coil.

 

So is the starter solonoid still going to work properly if it is now getting 12 volts to the I side just like the coil? I will have a new coil and pertronix on monday.

 

The resistor wire is there to cut down the voltage run at the points. 12V will burn up a set of points in shortorder, so the voltage is cut down to ~8V.

If you remove the resistor wire, you need two things: a coil rated for 12V use (either one with an internal resistor, or an aftermarket hi performance unit) and an electronic ignition. You also have to be careful when selecting a coil that your electronic ignition will work with it. Apparently the first generation Pertronix Ignitor won't hold up to use with an aftermarket low-resistance coil being fed 12V.

What you can do is pick up an Ignitor II or Crane electronic conversion kit and a decent aftermarket coil (ie. MSD Blaster II or Pertronix Flamethrower II), cut out the resistor wire, and benefit from 40kV+ from the new setup. This will allow you to open up the spark plug gap a little for a wider spark.

 

Ok,, sounds good. So 12 volts to the I side of the starter solonoid shouldnt hurt anything. It just keeps the monkey throwing poo.. (or running for a better term)

 

nah won't hurt. the cable is needed when you have 8v to coil to increase to 12V at coil during starting the engine.
If you have 12V going to coil (res wire removed) this cable won't make a difference

 

+1 on everything above. The I terminal doesn't receive 12v, it provides it during cranking for a hotter spark by bypassing the resistor during start up. If you remove the ballast or resistor wire, you don't need the I terminal on the solenoid.

 

Really. I didnt know that.. I allways thought it kept the coil going, but I guess thats what the switch is for eh?

Thanks kalli, fakesnakes..

Now I just need the ignition.. Thanks again guys

 

"Thanks kalli, fakesnakes.. "

you mean i didn't help you ?