QWKDTSN Posted January 24, 2002 Share Posted January 24, 2002 This should probably go somewhere like the Ignition board but I figure more people will see it here and besides.. it has to do with how the JTR manual says to do the swap... JTR says to hook up the two black/white wires to the TACH and BAT terminals on the HEI dist. I'm using an Autometer 5" in-dash tach, which has three wires: 12v+, ground, and sender (green). The stock tach has the red-white and black-white sender wires. I'm thinking that I'm just going to use the stock connector, soldered to the black/red Autometer wires and hook it up to the wiring harness. Easy enough, but now what to do about the sender? I'm thinking that I could just run it through the firewall straight to the distributor, like they say, but then what hooks up to the BAT terminal? One of the black/white wires? What about the other one? The thing is, the stock sender wire has a positive side and a negative side and it loops around a resistor thing. So there's two connections to the wiring harness. The autometer just has one sender wire. If I can hook it up to the stock wiring harness, that'd be great - but which side should it be, positive or negative? What did you all do here? Am I just being really confusing? Thanks Quote Link to comment Share on other sites More sharing options...
labrat Posted January 25, 2002 Share Posted January 25, 2002 Just hook the sender wire to the tach terminal on the HEI dizzy, and hook up +12v to the bat terminal that is switched on by the ignition. power and ground to the tach, and it should all work fine. Bill Quote Link to comment Share on other sites More sharing options...
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