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Old 08-22-2023, 03:42 PM
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patrickt patrickt is offline
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Cobra Make, Engine: ERA #732, 428FE (447 CID), TKO600, Solid Flat Tappet Cam, Tons of Aluminum
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Quote:
Originally Posted by Grubby View Post
838 is complete and I am doing some things that improve the car.

I installed an Ammeter shunt wire to protect the system.

...

I would like to have the shunt wire, but normal charging is important.
Well, you can't rely on your eyes on this one, you have to test and take measurements. Let me just make a wild guess and say that the resistance on your new shunt wire is wayyyyyyy less than the resistance in the wire that is running through your ammeter. If that's the case then most of the current, regardless of which way it's flowing, is going through that wire and a much smaller, but proportionate, amount is running through your original wire. To test that out, and with the car engine OFF, turn on your lights and your fans, both pushers and pullers, that's 30+ amps flowing out of the battery. How far to the minus sign has your ammeter needle moved from the straight up position?
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