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Ballast resistor for aftermarket coils? 140-160

posted by  musterdbom on  Thu Mar 4 15:30 CST 2004
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last visit: Thu May 24 01:37 CST 2001
[RELATED]

I have an old accel coil that I'd like to use but it gets really hot after a few minutes of idling, there is no ballast resistor inline.

I just hooked up the crane xr700 so there's no more points, but the xr700 needs a ballast for the coil, and the coil seems to want less voltage judging by its external temperature.

I couldn't find the resistors listed in the crane instructions so I somehow found a '69 chrysler part number and got a 3.50 resistor from the auto parts store. I hook it up and it immediately begins to smoke and glow red, how hot are these things supposed to get? It does have a ceramic casing around the coil to absorb heat but man it glows like a toaster oven!

Only thing I can think right now is that a 69 chrysler runs on a 6v system? Maybe the 12v feeding it is making it extremely unhappy?

Can't I just get some resistors from radio shack and rig it up, how many watts would be enough?
--
'84 302 wagon '73 142






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