Best Voltage for Coil

[MercuryMarc]

A few years ago I put a Flamethrower coil and Pertronix unit and ran the coil terminal to the original wire, which is downstream of the ballast resistor, so I think the coil receved less than 12 volts (I think 6-9 v).

I rebuilt the motor and added a duraspark 2 dizzy + control mudule- wired it just like it says on the Joe Trojan and Mustang Steve Sites (thanks Joe and Steve). I am still using the Flamethrower coil past the ballast resistor.

I noticed on the coil (that I got in the boneyard from the 81 Merccury Zephyr 200I6) says "12 volts."

Should I bypass the ballast resistor and supply 12 v to the coil (Flamethrower or the old Autolite)? Plugs gapped at 0.050.

Thanks-

 

[addo]

I would. Might mean a possible tiny increase in economy.

 

[t-west]

I did and haven't fried the flamethrower yet!

 

[rickwrench]

Ballast resistors are only used to reduce voltage running through the breaker points to extend their life. With no points, i.e., duraspark, there is no reason to reduce voltage. Run the coil at full voltage and .050" gap on the plugs. The coil is not working that hard on a six anyway, about 75% as hard as on a V8 in fact, ha ha ha!.
Rick(wrench)

 

[MercuryMarc]

Thanks everyone!
So looking at the diagram on my first post, the wire to the + side of the coil should really be 12 volts (before the ballast resistor). I think I'll run the + wire from the red terminal of the module to the + coil terminal.

If it works, maybe I'll add the info to the sticky post on the D2 Swap.