https://www.rx7club.com/3rd-generation-specific-1993-2002-16/gauging-interest-new-product-idea-not-anti-det-%3B-323620/

this is me and my brothers idea we got it rolling so read up i own an 88 TurboII and he has a 93 FD so were trying to set this up for both FC's and FD's but when were done with everything will work for any kind of car
THanks
TwEaK

 

So it's not a controller, it's a display. Hardly a new invention; in fact I'll be building a kit-based thermocouple temp display and temp switch soon.

http://www1.jaycar.co.nz/productView.asp?ID=KC5376