Author Topic: How-To: Dual Coil Mod (Read 11594 times)

Long Shot · « **Reply #40 on:** 03:19:08 PM / 03-Feb-08 »

Quote from: IggyEGuana

IDK much about the mod first hand cuz I haven't done it but be sure that everything is mounted up the way is was before (that is, if you even undid them). The transistors are grounded through thier bodies. As for it not wanting to crank, maybe the battery got worn down?

i don think the bat is worn down because it started perfectly 15min before i did this. I was looking at the wiring diagram of the coils in the FSM and both black/white wires are already tied together to pos. could it be the other 2 that need to be connected.

demonic s12 · « **Reply #41 on:** 12:05:04 AM / 16-Apr-08 »

someone repost the how to on this... it was lost in the crash...

Abunai S-12 Drifter · « **Reply #42 on:** 07:57:33 PM / 24-Apr-08 »

id be interested in a thread about how to convert a ca20e duel coil into 1 coil. im this already exists for the love of all s12 gods please link me.

Xano · « **Reply #43 on:** 09:02:49 PM / 24-Apr-08 »

Quote from: Abunai S-12 Drifter

id be interested in a thread about how to convert a ca20e duel coil into 1 coil. im this already exists for the love of all s12 gods please link me.

put shitty plugs in one side and dont connect the wires, wire 1 good coil to the other side.

David B · « **Reply #44 on:** 10:51:26 PM / 24-Apr-08 »

alright, i tried the dual coil mod
im a noob like shit, dont hate
i did not even know exactly what a ignition coil was until today to be very honest

but, i read this forum, and messed around with some wires and tabs
this si what i did, my car runs.... i can tell a difference in a good way, i just wanna make sure i did it right.

so i made a diagram. its very crappy i know

BEFORE

AFTER

so i made a diagram. its very crappy i know

BEFORE

AFTER

Abunai S-12 Drifter · « **Reply #45 on:** 10:55:29 PM / 24-Apr-08 »

im confused.

David B · « **Reply #46 on:** 10:59:37 PM / 24-Apr-08 »

dont be confused! i am. and im trying to figure this out!

Abunai S-12 Drifter · « **Reply #47 on:** 01:20:15 AM / 04-May-08 »

ok let me know when ur done. i need to know.

Umai Naa · « **Reply #48 on:** 08:04:36 AM / 04-May-08 »

All you need to do is run a wire between both positive terminals.

No disconnecting, just a short length of wire, and an eye terminal crimped onto each end.

It's hardly rocket science.

Abunai S-12 Drifter · « **Reply #49 on:** 11:29:25 AM / 04-May-08 »

^^
well CallaroSX blew his ecu doing it. *having the vg30e motor in a ca20e car but the passengerside harness *where the coil plugs in* was from the ca20e. i really wanna make sure i get this right because i im extremely afraid of blowing my ecu. are you sure it'll be fine?

David B · « **Reply #50 on:** 03:06:22 AM / 11-May-08 »

alright. this has 2 be why ihave my rev problem! its because my 2cnd coil positive coil is unplugged. there were like 5 write ups so igot messed up. when i wake up ill try it out

sideways_s12 · « **Reply #51 on:** 03:27:15 AM / 11-May-08 »

Quote from: Abunai S-12 Drifter

^^
well CallaroSX blew his ecu doing it. *having the vg30e motor in a ca20e car but the passengerside harness *where the coil plugs in* was from the ca20e. i really wanna make sure i get this right because i im extremely afraid of blowing my ecu. are you sure it'll be fine?

I have this done on my turbo car and it's fine and has been fine since I've done it so you should n't have a problem

Abunai S-12 Drifter · « **Reply #52 on:** 07:54:31 PM / 11-May-08 »

neh i wanna be safe. i think its a little different when ur hooking one up to a 4cylinder coil harness to a v6 motor.

Kustamogen · « **Reply #53 on:** 08:47:32 PM / 11-May-08 »

I have msd blasters in now.....and my tach is no longer working....from my search on here I see theres a couple things I could do....but most just say "its the green wire" haha......so find the green wire and do what?

Xano · « **Reply #54 on:** 09:56:23 PM / 11-May-08 »

Quote from: Kustamogen

I have msd blasters in now.....and my tach is no longer working....from my search on here I see theres a couple things I could do....but most just say "its the green wire" haha......so find the green wire and do what?

lol, i dont have any problems with my tach, and i use a blaster SS. but it could be because the VG you have to reuse the transistor (i think its a transistor) that is just before the coil in the circuit.

Kustamogen · « **Reply #55 on:** 10:05:25 PM / 11-May-08 »

all I did was rewire the blue and black (w/ white tracer) into the blaster SS and ta da.......dont get why my tach would stop working

Keith · « **Reply #56 on:** 03:29:53 PM / 12-May-08 »

Quote from: Kustamogen

all I did was rewire the blue and black (w/ white tracer) into the blaster SS and ta da.......dont get why my tach would stop working

Is the primary transistor still hooked up? The tach feed is on that....the primary transistor is the one with 3 wires

Kustamogen · « **Reply #57 on:** 05:46:18 PM / 12-May-08 »

pretty sure it is.....Im gonna take all my IC stuff off today and get a good look again.....maybe clean the grounds

soapdude · « **Reply #58 on:** 09:01:24 AM / 21-Aug-08 »

Does this mod work and is it effective on vg30e? It's an 88 s12.. Thanks!

Xano · « **Reply #59 on:** 10:00:20 AM / 21-Aug-08 »

Quote from: soapdude

Does this mod work and is it effective on vg30e? It's an 88 s12.. Thanks!

your VG30E only has a single coil, so its not effective, HOWEVER, it is effective to swap in a single MSD Blaster SS and bigger plug and coil wires.

no need for dual coils, vg30e's only have a single plug per cylinder, where as the 4 cyl versions have 8 plugs total, two in each cylinder.