Thread: Time for a new battery, but what one?
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Old 03-17-2021, 04:19 PM
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Moritz55 Moritz55 is offline
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Cobra Make, Engine: Superformance, '65 427/MKIII with Roush V8 - 351W w/770cfm 4BBL Holley, 514hp
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Chucks1, when you install the new one.. start the car and see if you are getting 14.5-14.7volts at the battery. Once engine idles normally (800-900rpm) and fully warmed up with lights on and fans running .. you should see ~13.0-13.4volts at the battery.
Just confirm the alternator is putting out nicely and well grounded .

Useful link: Voltage drop when the fan is on

Many thanks.....
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Many thanks,

Mark


Superformance: SPO2454 , Titanium w/Black Stripes
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Last edited by Moritz55; 03-17-2021 at 04:32 PM..
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