HEI current limiting

[Geoff 2]

This information comes from GM.

 

[Geoff 2]

Zombezoo,.
I said in the other thread that you needed 'more' sink with the low res coil. Hers is why...

 

[Canadian1968]

Great.

DID you notice that your own information actually says not to use a coil lower than .5 ohms?

It actually suggest that at the very lowest point. It's specifically says .5 - 1.0. It definitely does not suggest running 0.3 ohm coil. And again, your own information says lower resistance causes more heat.

So the resistance of the coil IS directly related to the heat thar is generated by moduel.

He is using a coil with even lower resistance than what is suggested. Its also desinged for CD ignition, i know your article only touches on primary resiatance but would u not agree that is going to create more heat than it should ?

 

[Canadian1968]

Basically, what your saying isn't wrong. Yes the HEI module may have a limiting device , and adaptive dwell BUT when your paring it with a coil that is trying to charge itself so fast ( because it actually designed to give multiple smaller burst not one large one ) Your making the HEI module limit itself all the time . Your making it work harder than it should . You have a coil that's designed for multiple super fast, high energy burst and you are paring it with a module that is ment to fire one single high burst . The module is basically saying SLOW the F'down ! and its working really hard to do that, and in turn creating A LOT of heat.

 

[RJ Squirrel]

Uh-OH- I think I hear Bob waking up from his nap-

 

[Don67Satellite]

Uh-OH- I think I hear Bob waking up from his nap-