rk2334 Posted May 11, 2018 Share Posted May 11, 2018 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 Quote Link to comment Share on other sites More sharing options...
NewZed Posted May 12, 2018 Share Posted May 12, 2018 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. Quote Link to comment Share on other sites More sharing options...
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