Ok so ive heard of people using TII leading coils because they are more reliable or something. Now will they plug into the fd harness?? and is there any difference in the TII coil or gxl or stock second gen??? Thanks

-Tony

ya I would like to know, getting spark breakup myself with the midpipe on and higher boost

as far as i know the fd uses one exturnal ignitor where as the fc uses one ignitor for the leading coils and one ignitor per coil trailing,



what i have found that works great for me is 4 microtech/boshe coils with a fd ignitor, wired properly there is no problem, now i run a wolf 3d so the wiring may be differnt for a stock pcm. but i do have a wireing diagram if anyone would like to know how to wire in 4 coils with a fd ignitor.

ill be running a pfc if that makes a difference??

i am running a PFC now too

Why not upgrade to 4 MSD coils? Fairly inexpensive, reliable, and powerful- Look HERE!!!



PM me with any questions-

You should post up the information on how to wire up the 4 coils with an FD ignitor.

Why keep the FD ignitor?

Suggestions for us who use the Power FC? I haven't found a way to get rid of the ignitor and still keep the PFC.

for thoughs of you who want the wiring diagram for the microtech coils with a stock fd ignitor email me at



fc3sboy@wi.rr.com



i will be sure to respond as soon as posible.

just post it here man? why make people email it, if you can post it here we can all just look at it. Im taking off my UIM and TB so i can port and remove all emissions and stupid stuff so I want to work on the ignition while i have em off

if you look at the fd ignitor harness that is plugged into it the terminals

go like this (A) brown wire, (B)green/red, ©brown/black, (D)black/white,

(E)green/white, (F)green, (G)green/black, (h) open.........



now the caps letters are the positon in the plug and it helps me just type 1

letter instead of the color.



terminal;

(A) goes to ignition 1 of your computer

(B) goes to trailing coil 1

© goes to ignition 3 of your computer

(D) goes to 12v switched power supply

(E) goes to trailing coil 2

(F) goes to ignition 2 of your computer

(G) goes to both leading coils yes both.

(H) open , do not connect anything here it is unused.



now as far as ignition 1,2,3 goes you may need to figure that out on a power

fc as i do not know how they verb them or even if they use 3 out puts, but

wolf 3d says ing.1 is trailing coil1 , ing2 is leading coils and ing3 is

trailing2.

happy now nopistons94

side note, all FC coil packs are the same.

no they are not, the trailing ignitors on the s5s are not the same as the s4 the differance i do not know i just know that s5 will not work with wolf but s4 does, read up on it and ill look at the s4 n s5 coils i have to see what is differnt. i know its in the electronics of the ignitors.

After using 2 FD coils, 1 aftermarket coil, the conclusion is that the 2nd gen RX7 coils are what you need to use with aftermarket ignition systems like MSD so that they won't short out like the FD or aftermarket coils, I'm currently using MSD on leading with 2nd gen leading coil with no issues after going through nothing but headaches with FD coils and aftermarket coils failing with the MSD.

Nopenis, I dont think you are geting spark breakup.



ErnieT ran 10's on 25lbs of boost with a stock ign system.



i'd look more towards fuel cut or tunning issues.