mx-7

I have a single turbo fd. It has msd 6a on the leading coil. The leading coil stop working today. There are threads saying that fc coil is better than fd coil and therefore, I want to go the fc route.



1) Should swap out just the leading coil or should I swap out for both the fc leading and trailing coil?



2) How do the fd ignitors compare to the fc ignitors? Should I go for the fc?



3) Are all fc coil and ignitor assembly the same for all models?

whiplash

Now don't hold me to this, but I think there the same.... I read something else about this not to long ago.... Let me see if I can find the thread

vosko

FC coils are supposed to be better. you have to swap out everything and yes all FC coils are the same

mx-7

Vosko,

I understand that you're saying yes in swaping out both fd leading and trailing coils for the fc. Are you also saying yes to the fc ignitors?

vosko

if you are using stock ignitors yes



you swap EVERYTHING



my car has the FD ignition still and its working fine...... i do need a FC trailing coil pack for my T2 lol

mazdadrifter

I've heard the trailing ignitor's switching mechanism can fail at high rpm, so don't swap in the trailing unless you ablsolutley have to.

jspecracer7

I've heard the same thing as well.



I run 13B Cosmo trailing plugs with a coil that's made for a AE86 for my leadings....works Great!

vosko

well eventually i'll upgrade to MSD coils..........that should be cool

works2r

i swapped to MSD coils when i started having breakup, its been good ever since! but, i also agree, fc coils i have heard are better than fd coils..