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Quick question on Tach hookup...

Discussion in 'The Garage' started by savagek5diesel, Sep 26, 2006.

  1. savagek5diesel

    savagek5diesel 1/2 ton status

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    I've got a Sport comp Autometer tach i bought off a buddy. It's got 4 wires : Green, Red, Black, and a thinner (higher) gauge white wire. I imagine white is for the illumination, and black for ground. But where do i hook the rest of them up to?
     
  2. ryoken

    ryoken Puppy Fabricator Premium Member GMOTM Winner

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    Red - key on 12v

    Green - signal, usually negative side of the coil.. iirc HEI has a spot on the dizzy...
     
  3. savagek5diesel

    savagek5diesel 1/2 ton status

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    thanks. Yeah, i ended up testing each wire, red was ignition power, green was signal, white was illumination, black was ground. thanks for the input man. It's all mounted up and working now except the shift lite. I'll post some pics sometime soon.
     
  4. sweetk30

    sweetk30 professional hooker Premium Member

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    autometer has that stuff on there site also.
     

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