X-post, how much current does the ignition coil draw and how much is safe?
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Cross posting this here to pick the brains of the smart turbo fellas. Lots more guys here than on the N/A side have played with stand alone, hopefully somebody can clarify some things for me before I melt stuff ![ducking](https://rennlist.com/forums/graemlins/icon107.gif)
How much current is actually pulled through the green coil positive? I want to know because I just finished wiring up my LSx coils and I'm concerned I'm risking melting my switch trying to power all 4 since that line doesn't have a fuse on it. Will it be ok, or will I need to tap some other 12v switched source and run 3 other lines into the engine bay? If it matters, they will be fired in wasted spark so two will fire at a time. I'm guessing the stock coil draws no more than 5 amps through the switch? I could be wrong on this, but I think LSx coils draw ~2 amps while they are charging, with a possible peak of ~5 amps. I also dont think logic coils like the LSx draw any current when they are not connected to the trigger, so that would mean only 2 of the 4 would be drawing current at any one time? Can I safely pull 10 amps continuously through the ignition switch? Seems like a lot of current, unless I'm missing something.
![ducking](https://rennlist.com/forums/graemlins/icon107.gif)
How much current is actually pulled through the green coil positive? I want to know because I just finished wiring up my LSx coils and I'm concerned I'm risking melting my switch trying to power all 4 since that line doesn't have a fuse on it. Will it be ok, or will I need to tap some other 12v switched source and run 3 other lines into the engine bay? If it matters, they will be fired in wasted spark so two will fire at a time. I'm guessing the stock coil draws no more than 5 amps through the switch? I could be wrong on this, but I think LSx coils draw ~2 amps while they are charging, with a possible peak of ~5 amps. I also dont think logic coils like the LSx draw any current when they are not connected to the trigger, so that would mean only 2 of the 4 would be drawing current at any one time? Can I safely pull 10 amps continuously through the ignition switch? Seems like a lot of current, unless I'm missing something.