Tacho RPM Converter for Low Level Input and High Level Output.
Works with any ECU, stock or aftermarket, to allow you to use your "Old Fashioned" 12 volt driven RPM / Tachos.
For example, Porsche 924 or Datsun 240Z cars have RPM Meters / Tachos driven directly from the coil.
When you fit an aftermarket ECU such as a Link, DTA, Omex, Haltech, Megasquirt, MoTeC, etc etc, the RPM output is a low level signal which will NOT work with your classic cars meter.
Also, if you fit a modern engine with modern coils into a classic car, the RPM Rev Counter / Tacho will no work.
This little box sorts the problem!!
Simply connect the 4 wires and you are away!
12v Ignition Feed to the Red Wire.
Body Ground to the Black Wire.
ECU RPM Feed to the Green Wire
RPM Out to your Classic Tacho on the Brown Wire.
Any questions, please ask!