I have a 1989 civic DX with a b7 swap but no Tach I was just wondering how hard it would be to rig one up on my car? any advice is helpful

 

pretty simple... most tach has 3 wires..... one to hot only when car is running, and a neg to any ground, and a green input wire that go to the dizzy.... cant rem which wire on the dizzy though.... i know it is the one that is green on the igniter inside but cant rem which one on the outside..... hum???

 

bluie wireon the dizzy and there is uaually a white wire you hook up to your head lights to light it up at night

 

Or you could buy a gauge cluster from any 88-89 civic/crx that had a tach and swap the clusters. You can even swap over your speedo so you can keep the same miles.

 

yeap... i fig as soon as i found my crx guide online i would be too late... but yea hook up to the blue wire...... hope we all helped

 

Thanks guys i really apprecieate it

 

Get an Si tach. No rigging involved. Just remove a bunch of screws.