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rk2334

Tachometer connection

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Hi everyone,

I have swapped rb20 into 280zx 1983turbo. The stock speedometer was straight forward mechanical outputs, but I don’t know how to modify stock tachometer to take a rb20 signal .

Any advice is appreciated as always

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What engine management system are you using?  If it uses a single coil to spark all cylinders then just running a wire from the coil's negative terminal to the tach should work, just like the 83 ZX uses.

 

The diagrams are in the electrical chapter of the FSM.  Circuit Diagrams.

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