anyone with any hei dizzy experience? - Defender Source
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Old July 13th, 2007, 07:09 PM
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brian bertolini
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anyone with any hei dizzy experience?

Hey everyone, I put an hei distributor on my d90 a while back and everything was good until I upgraded the module and coil to a racier pertronix setup. I keep frying the module. Been through an accel one now too. It runs great then after a couple hundred miles it gets fried. It never happened with the stock hei coil and module- but my spark wasn't so hot with that setup. I'm getting 13 volts to the dizzy too. Any oppinions? Could too much advance fry it?
Thanks
Brian Bertolini
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Old July 13th, 2007, 10:11 PM
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Hans Haase
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Are you sure it's a constant 13volts to the distributor? Or did you tap into the 6v line somehow?

Also, did you get the correct coil? There are two types of HEI coils, not sure the difference other that different wire colors.

Honestly, I'd go back to GM parts unless you run over 10k rpm regularly. The stock HEI setup is really quite good on its own, the only real problem with it was at really high rpm's it gets unstable. That, and by nature it' s an extremely noisy system electrically.

Another thought is a bad voltage regulator putting too many volts into the distributor. You running a voltmeter in the truck, to see the output at highway speeds?

-Hans
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