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Old 03-18-2020, 08:49 AM
Anthony Anthony is offline
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Join Date: Apr 1999
Location: cleveland, OH
Cobra Make, Engine: CSX4000, 427
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Quote:
Originally Posted by Cobra #3170 View Post
I was going through the engine data on Fridays test runs and found a correlation between system voltage and high rpm. Seems that every time we got an ABS Mil light there was a voltage spike going as high as 16.2 volts so I was wrong about a solid supply voltage. It may be that the engine accelerates at a greater rate than the regulator can control the alternator flux field. I am thinking of putting a couple of high current silicone diodes in series to lower the ABS supply voltage. That may solve this issue.
Other options may be installing an oversize pulley on the alternator and/or undersize pulley on crank, to slow down alternator's rpm's, and also installing a manual/remote disconnect switch from the alternator field wire, or bat terminal, and running solely off the battery during high rpm runs.
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Last edited by Anthony; 03-20-2020 at 08:23 AM.. Reason: dementia
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