Wiring SW tach? - Team Camaro Tech
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post #1 of 4 (permalink) Old Oct 4th, 10, 08:48 AM Thread Starter
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Wiring SW tach?

I just purchased a stewart warner tach with the sending unit. I have a diagram of the wiring but a little confused on the battery side coming off the sending unit.

1. Does it need to go to + side coil? (if so what ballast resistor do I use?)
2. Does it need to go to battery and coil?
3. or just the battery?
And where would the sending unit normally be placed on the car?
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post #2 of 4 (permalink) Old Oct 4th, 10, 05:47 PM
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Re: Wiring SW tach?

The red wire for the amp is IGN power - from the IGN spade on the fuse panel - before the resistance wire going to the coil.

I remember the box being installed on the firewall, I could be incorrect, maybe other members will remember the placement of the box.

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post #3 of 4 (permalink) Old Oct 4th, 10, 06:49 PM Thread Starter
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Tony
 
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Re: Wiring SW tach?

So do I just need to run one wire from the ign. tab on the fuse box to the battery screw on the sending unit?

Tony W.
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post #4 of 4 (permalink) Old Oct 4th, 10, 06:52 PM
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Re: Wiring SW tach?

As I read the instructions, yes, switched IGN power supply.

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