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Old 07-08-2013, 12:18 PM
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ndutton ndutton is offline
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Actually Bob, your situation is what this thread's about. To answer your question of resistor or not, it depends on your voltage between the coil + terminal and the engine block ground at cruising RPM. Divide that voltage by the coil resistance and make sure the result is under 4. In the calculator I factored in a 15% safety factor reducing the quotient to 3.4.

At first blush I'd say you should add a resistor but without the coil input voltage we won't know what size.

The calculator can be found in the first post of this thread.
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1977 Catalina 30
San Pedro, California
prior boats 1987 Westsail 32, 1970 Catalina 22
Had my hands in a few others
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