Continuation of harebrained dual alternator installation idea

If this is your issue, run magneto's and spare the charging current for everything else.

That said, if this is your issue, you have another issue that you need to diagnose and fix. There's no reason for dual alt's on a race car. You're not running that much crap when you're racing. The onboard computer shouldn't be drawing that much power, or you shouldn't be watching Youtube and gaming while racing. Unless you're racing the car you also compete in stereo competitions with.

"Just because you can, doesn't mean that you should"