mr jdm Posted January 10, 2010 Share Posted January 10, 2010 here is a diagram of the ignition circuit Here are the instructions from my tach adapter http://static.summitracing.com/global/images/instructions/atm-561.pdf According to everything, would it be ok for the output of the ignition relay be connected to the INput on the tach adapter. Then the output of the adapter goes to the input of the ignition/coil harness? Quote Link to comment Share on other sites More sharing options...
Blakt Out Posted January 14, 2010 Share Posted January 14, 2010 Subscribed Quote Link to comment Share on other sites More sharing options...
mr jdm Posted January 15, 2010 Author Share Posted January 15, 2010 autometer sells the exact same product, they emailed me back and I was right to follow the instructions. Output of igniton relay goes to input of tach dapter, output of tach adapter goes to input of coil harness. You can also trace the power wire on the sr20 coil harness and tap it Quote Link to comment Share on other sites More sharing options...
pat1 Posted March 29, 2010 Share Posted March 29, 2010 you can make you own for less than 2 bucks Quote Link to comment Share on other sites More sharing options...
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