Grant Baker Posted February 2, 2016 Report Share Posted February 2, 2016 Hi GuysI'm installing a G4+ Storm on a 1972 Datsun 240Z with a Step 2 RB25DET engine. Interesting job!Only issue I've got at the moment is the rev counter / tacho.It is a "4 wire" Tach which senses current from the positive side rather than having a trigger from the coil on the negative side.I understand that there is some sort of "converter" you can buy to make this sort of Tach work with a proper ECU like the G4+s, but I'm damned if I can find anything!!!!I'm happy to get the soldering Iron out and make a circuit up, but I'm not a full-on electronics dude, so not sure what's needed...Any pointers? Quote Link to comment Share on other sites More sharing options...
Wockie Posted February 4, 2016 Report Share Posted February 4, 2016 http://www.dakotadigital.com/index.cfm/page/ptype=product/product_id=127/prd127.htmTry this link it maybe what you are looking for. Quote Link to comment Share on other sites More sharing options...
augusto Posted February 4, 2016 Report Share Posted February 4, 2016 This circuit should work in your car.I could not send the layout and text.Excuse me.Augusto Quote Link to comment Share on other sites More sharing options...
Grant Baker Posted February 4, 2016 Author Report Share Posted February 4, 2016 Thanks.The circuit with the transistor won't work as the Datsun uses current, not voltage. Quote Link to comment Share on other sites More sharing options...
jonnyt80 Posted February 4, 2016 Report Share Posted February 4, 2016 http://www.viczcar.com/forum/topic/11540-converting-stock-71-240z-tacho-to-electronic-good-for-engine-conversions/Try this if you cantfind a converter Quote Link to comment Share on other sites More sharing options...
Grant Baker Posted February 6, 2016 Author Report Share Posted February 6, 2016 I've got hold of a "Tachmatch TM03 Boost" module, which sorts the problem http://www.technoversions.com/TachMatchBoostSpecifications.html? Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.