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Old 04-18-2016, 11:43 AM
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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 DanEC View Post
Could be - I didn't pay much attention to it when I had the dash apart but off-hand I don't remember any large wiring there. Actually, the instruments panel uses a large printed circuit sheet to power everything in the instrument cluster so you are probably right. But - they are well know for electrical fires. I know someone who had one back in the 70s and his ownership of it ended with a dash fire. But he still misses it.
The Smiths amp gauge does not pass all of the current through the little measuring apparatus inside the gauge, it shunts it off instead. That said, you're still putting a good bit of current through the gauge on two occasions: 1) When your battery is down, like after some prolonged cranking, and it is recharging; and 2) For that momentary instance when all your high amperage fans kick on and the alternator has not caught up. Other than that, there is only a trickle of current running through your amp gauge; hardly any at all. That said, I still have a ten gauge parallel connection running from the circuit breaker to the fuse box. The amp gauge still registers accurately, only in a muted fashion, and then current on those two occasions is cut by more than half. It's a very simple upgrade and it will make that big swing of the needle, when the fans come on, about a quarter of an inch or so less.
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