[ZFanatics]

Does anybody know what it takes to make 240 tach work with 280zxt ignition system?

 

[Ron]

Re: 280xzt engine in 240z / stock tach not working

Hello,
What i ended up doing is replacing my factory tach with one from a 78z then ran one wire from the coil to the tach worked like a charm... Good luck
Later
Ron240zxt

 

[Tony D]

Re: Similar here...

I didn't find any good stock tachs, and the big Autometers were CHEAPER than the stock new component, so I did similar to ron: run a wire to the autometer and wrap some electrical tape around it to hold it in thestock opening just fine! Good Luck.

 

[Jason k]

Re: Similar here...

The two wire tachs don't seem to work with this swap,and it's one of those things that never get mentioned.If you can find one, the 73 240s use a one wire unit that works with the EFI or a 260/280 tach may fit in your housing,in other words use the one wire guts but your housing and face.