okay i have a 72 302 all stock. I think i am going to install a pertronix module in it. With the module can i feed the coil full voltage?? I know the feed has a resistor to lower the voltage. So could i just run a key hot to the coil?? Which should give a slightly hotter spark?? And then what would be a good coil to upgrade to?? To give it a better spark? I assume a newer coil would have to have some affect?? So with a pertronix, can i feed the coil full voltage? And what would be a good coil to upgrade to?? later!! chris
Unless you are switching to a different coil higher voltage will not increase the power of the spark. It will however bun the coil up. I don't think the module is made to take the ful;l battery volts.
I'm running the Pertronix module with an MSD Blaster coil. In between them is a Mallory HyFire VI box that sends over 400 volts to the coil.
I swapped to pertronix. Didn't change anything else. And as far as I know, I do not have a resistor anywhere...FWIW
Pertronix I does not need a full 12v, Pertronix II does. I ran the early version for 7 years through the resisted circuit with 8v. and it worked great. The techs at Pertronix confirmed the above for me.
Mines a Pertronix 1 also. It's hooked directly to the coil, seemed to work fine when the engine was in the car.
I am pretty sure mine is a P-1, straight to the coil with 12 volts. He said that so I would guess that "not needing" doesn't prevent it from working well with 12v
Correct, the first version can run with anywhere from 7v to 12v, you just don't need the 12v like with the II.