Hi.
I'm working on an electronic display to measure the speed (km/h) on my Opel Corsa A, '89, 4 speed gearbox.
I'm trying to eliminate the mecanical cable that connects the gearbox and the speed gauge.
Everything is ready, but i don't know the formula witch will help me find the speed i'm going.
So. can anyone tell me the number of times the cable spins in 1Km? If i know that, everything is done. Where can i find this number?
I know it's not a Kadett, it's Corsa, so please excuse me if my question is out of place.
I don't speak german, i'm from romania.
Thank you.