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HybridZ

Speedhut Tach w/Rb26


ZT-R

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Hey guys, I have been reading threads all day trying to get my speedhut tach to work with my rb26. I am more confused now than when i started, so i figure why not get yelled at too. The speedhut requires a negitive coil/tach output. I have it hooked up to the timing light connector's white wire right now, but it isnt working. I also hear you can use ecu pin 7 and a 10k resister (pull up). I would like to hear from someone that has already got it working. Do i clip the loop wire on the back of the tach or not and so on?

Edited by ZT-R
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This is what I used. It's for a rb20 but the ignition signal is the same as a rb26.

 

 

 

post-3499-042823500 1315790475_thumb.jpg

 

Ditto... Only I didnt know the resistance rating I needed so I used a light bulb I had around that happened to work. And I have a later style tach with only 3 wires and works as the Negative pickup style.

It sounds like you have the inductive style tach from an early(early 73 and back) car?

 

Here is the wiring for an early 240Z with that style tach if I am correct.

 

PertronixInstall.jpg

Edited by rayaapp2
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  • 2 weeks later...

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