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Re: Timing for electronic dizzy conversion
2001/5/3 7:04
From Hawaii, USA
Registered Users
Posts: 29972
I was just reading up on it, and the Hot Spark web site says:
If the charging system voltage, measured at the coil's + terminal, is more than 14.0 volts at any RPM level ... [a] ballast resistor should be wired between the coil's + terminal and the red HotSpark ignition wire. Too much voltage can damage the ignition module
Since the 1200 alternator specs are up to 15+ volts (depending on temperature) it seems the resistor is needed -- should not be optional

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Internally regulated alternator is a little tighter on specs, but still goes over 14.0 volts. By the way this is for most all cars, even new cars, as they use the same lead-acid battery chemistry

There is no red X, these are the two "options":
* wire up ballast resistor in between IGN and COIL +
* no ballast resistor wired up between IGN and COIL +

For racing w/o an alternator, the "optional" no-ballast would work fine. Otherwise use the stock 1200 wiring (with ballast wired up)

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Posted on: 2018/7/10 23:55
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