tacho wire help

[clean_vl]

where or which wire do you guys use to connect up an extra tacho,

do you use the tacho wire from the ecu or do u use another one, because the wire from the ecu dosent seam to work for me

i have done some searchs, and i have not found anything that will tell me which wire i need to use or were to look for it,

[clean_vl]

bump

[Zensoku]

Since RB30E's use ignition leads, a distributer and a single coil. Connect to the coil, "old school" style...