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Voltmeter Readout, Battery Problems

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Old Dec 7, 2004 | 05:40 AM
  #1  
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Default Voltmeter Readout, Battery Problems

Ok so I highly doubt it's a battery problem...i'm running a 6 month old optima redtop. But anyway, here's my problem:

I have Broadfoot pulleys, I have iceshark's adjustable voltage regulator. However, at idle my voltage meter reads out REALLY low...at or sometimes just below the 12 mark. Although when the car is moving or I rev the engine, it's at a perfectly normal level...a little above 14 or between it and 15 or so. Anyone have any ideas? Might it be because of the pulleys?
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Old Dec 7, 2004 | 06:41 AM
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If they are underdrive pulley to save some HP, that would do it. I did this on a RX-7 and the voltage would drop down at idle. I did it to keep from replacing the Alt every year and reduce water pump cavitation. I was shifting above 8K, not in the 944 range of operation.
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Old Dec 7, 2004 | 10:00 AM
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Yeah, I think you are falling off the cliff because of the underdrive. The alt is just spinning too slow at idle.
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Old Dec 7, 2004 | 04:14 PM
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ok cool i'm glad that it's not something else. i suspected it was the pulleys and i guess now i have confirmation. thanks for the help
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