Tookwik's 7M-GTE COP ignition mod w/ stock electronics...pics and writeup
- Thread starter tookwik4u89
- Start date
Great writeup, about to do this mod to my NA-T 2jz that runs on 7M electronics. I have a couple of extra sets of the IS300 coils I'll sell if anyone is interested, just PM me...
Okay. I just finished reading through this whole thread. Love Tookwik's setup. I'm a bit surprised that nobody asked what happens to the little white ground wire (I assume it's a ground) that goes from one of the fuel rail mounts to the 7M coil pack plate. Didn't even see it in any pictures.
Picked up my coils and ordered new wires yesterday. Sucks I have to travel this week. I can't wait to get back and put these on.
I just ordered some NGK ones, the look to be the same size wire core but I will give a review once they arrive this week for those interested 
So I have my coils mounted and when I went to remove the plugs from the original coil packs every fkn one of them broke. The wires are cracked and generally just junk. I saw somewhere that someone was making the harness for a decent price. This still happening?
You can buy the coil pack harness from Driftmotion and modify for your COP setup. That would be easier imo.
http://store.driftmotion.com/static/i-7m-gtecoilpackharness.php
http://store.driftmotion.com/static/i-7m-gtecoilpackharness.php
satx88supra;1847983 said:
So let me get this straight, the factory 7M coil clips just plug right onto the IS coils? All you have to do is extend that harness to reach them all?
Yes.....thats it. IS300 coils, plugs, and the 7M coil pack harness that needs to be extend to reach the coil on #6 and #3. I believe the coil that sits on #2 is close enough to the wiring harness connection. This will be one of my first mods when i have all the little bugs fixed on my 88 supra.
just did this mod because my stock coils cracked, is300 coils worked great and running strong @ 18psi.
Okay, so I have read through this thread and I love every bit of it.
Absolutely can not wait to do this. Nice clean look instead of big coil packs and what not
Now i do have one question though..And I have read every post in here, but my head hurts so i probably missed it.
When doing this mod everything is pretty much plug and play which is awesome. I couldn't help but wonder though..What did you do for the little ground wire? The wire that you tighten down onto the coil pack for the ground.
I'm sorry if I missed it or it's a very easy answer, just can't wrap my head around how it is grounded.
Thanks!
Edit: Hurp durp, just saw Mikesfixedroof had already asked this question on the previous page hah
However, the question still remains
Absolutely can not wait to do this. Nice clean look instead of big coil packs and what not
Now i do have one question though..And I have read every post in here, but my head hurts so i probably missed it.
When doing this mod everything is pretty much plug and play which is awesome. I couldn't help but wonder though..What did you do for the little ground wire? The wire that you tighten down onto the coil pack for the ground.
I'm sorry if I missed it or it's a very easy answer, just can't wrap my head around how it is grounded.
Thanks!
Edit: Hurp durp, just saw Mikesfixedroof had already asked this question on the previous page hah
However, the question still remains
The is300 coils don't have that little ground wire (or at least mine didn't). Maybe someone else can confirm.
He's speaking of the stock setup and the ground wire from the bracket that holds the coil packs to the head.
That is correct poodles ^
I'm just curious. Everything about this mod is straight forward and seems simple enough. The only thing that throws me off is what to do with the ground wire
I'm just curious. Everything about this mod is straight forward and seems simple enough. The only thing that throws me off is what to do with the ground wire
Well, if yoo do some kind of hold down for the coils, they'll be grounded that way. The only reason that ground strap is needed for the stock setup is because the coils aren't rigidly mounted and instead use rubber insulators.
I guess I'm still confused, but my is300 coils don't have anywhere to ground too. There is the connector for the wiring harness, the secondary spark plug wire connector, and the spark plug connector on the bottom. There is no exposed metal to ground, they are a sealed plastic casing.