Factory tach with MSD distributor.

[Plumpcars]

Have just fitted an MSD ready to run distributor in my 440 Roadrunner and as I suspected the factory tach no longer works. Before buying a tach adaptor (Harder than normal as I'm in the UK) can anybody please tell me if that will work with the factory tach? Thank you.

[frank1966]

I installed a ready to run, figure out which lead is the tach and connect it to the neg side I believe, double check which side of the tach

[frank1966]

I installed a ready to run, figure out which lead is the tach and connect it to the neg side I believe, double check which side of the tach

[Plumpcars]

I tried the MSD grey wire and the neg. terminal of coil. Neither worked on mine.

[Chargen69]

I tried a tach adapter.  save yourself the trouble, buy a new one from chargerspecialties.com

[Plumpcars]

So basically the factory tach will not work with an MSD R2R?

[ray230]

Not sure what might be different, but I have an MSD RTR and factory tach that works just fine. Rev limit set too. The only thing I couldn't get to work was the play back on start up.

[Chargen69]

So basically the factory tach will not work with an MSD R2R?

idk, maybe i had other issues

[Plumpcars]

Not sure what might be different, but I have an MSD RTR and factory tach that works just fine. Rev limit set too. The only thing I couldn't get to work was the play back on start up.

Thanks. Did you hook it up to the grey wire with a tach adaptor?