So, I bought an MSD 6AL for my 79 12a... and i was wondering what all I needed to make it work. Ive heard that I will need two msds? Im so lost and I cant find the dang thread for msd faq. Should I get blaster coils or use stock or both? This thing is driving me bonkers...

I have a feeling this is a good start though... MAZDASPEED MSD

 

Search this section with the key words msd 6al. There are alot of threads about this subject right here in the 1st gen specific section.

 

That's the site i used to install mine (MSD 6a) and it works like a charm. Make sure to note the part on the distributor wiring and you'll be fine.

 

Thanks guys, this has helped a lot.

 

how do u hook that up with the 2gdfis

 

Its not working. Something with my trailing is messed up. That, or the distributer. I cant figure it out. I see the two wires but I dont know if it should disconnect from the distributer or connect to the distributer... Im so frustrated...

 

 

you only need one box and one coil(if running it through cap), or 2 coils(if directfire) for the leading ignition

the mazdaspeed write up is for '81-'85 electronic distributors, do not try this way unless you have upgraded youre '79 points style distributor to the late model electronic one. If you still have the original points style, follow the install as the msd manual says w/ the white wire for the trigger and ignore the purple/green ones all together... or you could upgrade to the much more hassle free electronic dizzy.

 

thats my problem. i figured it out a couple of days ago and i got the whole spiel rotor cap and distributor.

thanks guys

 

related question: since the points ignition gets tach signal from the leading coil, how would you wire the tach signal with a 6AL and 2nd gen coil?

 

Use the MSD for tach signal.

 

Which wire on the MSD do you suggest ulling the signal from?

 

The MSD box has a tach output. its on the end with male terminal.