240hoke Posted February 27, 2003 Share Posted February 27, 2003 Wondering which car i need to get a tach from to run it with my em4-6f SDS system? I was planning on going aftermarket but the prices turned me off, what year did the Zcar's tach run off the single wire signal? Quote Link to comment Share on other sites More sharing options...
z-ya Posted February 27, 2003 Share Posted February 27, 2003 I assume you have a 240Z? If so, I would suggest getting a 75-78 tach, and swaping the guts from it into your 240Z housing. It's and easy swap, and allows you to use the stock 240Z mounting bolts. All early (70-72) 240Z have a current sensing tach (measure the number of current pulses). Some late 240Zs, and 260Zs have the voltage triggered tachs (the kind you want), but they are a little harder to find. Pete Quote Link to comment Share on other sites More sharing options...
240hoke Posted February 27, 2003 Author Share Posted February 27, 2003 Ihave a 260z, do you know which wires im supposed to have hooked up? I dont really know anything about tachs Quote Link to comment Share on other sites More sharing options...
z-ya Posted February 27, 2003 Share Posted February 27, 2003 A voltage triggered tach will have 4 connections, 12v, ground, ilumination, and signal. The signal one goes to the SDS. Pete Quote Link to comment Share on other sites More sharing options...
240hoke Posted February 28, 2003 Author Share Posted February 28, 2003 Hey pete, Thanks for the advice. The tach works perfect now, I found it to be the red wire with a black stripe. Im stoked that i can use the factory tach and not have to modify it. Thanks again. -Austin Quote Link to comment Share on other sites More sharing options...
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