Tookwik's 7M-GTE COP ignition mod w/ stock electronics...pics and writeup

ut89supra

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Re: Tookwik's 7M C.O.P. ignition mod w/ stock electronics...pics and writeup

anyone know the exact years of the is300 that had vvti? i need to know so i can start searching junkyard sites online. thanks. i went through the whole thread and never saw it posted once.
Mine are off of a 2003
 
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williamb82

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Re: Tookwik's 7M C.O.P. ignition mod w/ stock electronics...pics and writeup

ok, 2006, but what was the first year of the is300 with vvti? anyone know?
 

cheefer60

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Re: Tookwik's 7M C.O.P. ignition mod w/ stock electronics...pics and writeup

ive gotten the coils,but the fun thing is trying to find the pigtails that plug into the coil.called my local toyota dealer and they will only sell the whole harness.n e ideas.junkyards i am having no luck
 

Poodles

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Re: Tookwik's 7M C.O.P. ignition mod w/ stock electronics...pics and writeup

Connectors appear to be the same as the stock coils on the 7M.
 

bryanintexas

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Re: Tookwik's 7M C.O.P. ignition mod w/ stock electronics...pics and writeup

ive gotten the coils,but the fun thing is trying to find the pigtails that plug into the coil.called my local toyota dealer and they will only sell the whole harness.n e ideas.junkyards i am having no luck
90980-11246....the other #'s for the PIN's are further back in the thread.
 

cheefer60

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Re: Tookwik's 7M C.O.P. ignition mod w/ stock electronics...pics and writeup

Thanks a lot!Called up toyota and they will be here ne day!
 

cheefer60

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Re: Tookwik's 7M C.O.P. ignition mod w/ stock electronics...pics and writeup

does the 7m wiring have 1 terminal wire?thats why you have to order 2 of them?
 

cheefer60

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Re: Tookwik's 7M C.O.P. ignition mod w/ stock electronics...pics and writeup

also to add.does ne one have a quick wiring diagram on the converstion?:icon_bigg
 

bryanintexas

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Re: Tookwik's 7M C.O.P. ignition mod w/ stock electronics...pics and writeup

does the 7m wiring have 1 terminal wire?thats why you have to order 2 of them?
no, the gte pigtail has 3. the 1/6 connector will reach the coil on #1. the other 2, have to be extended to reach the 2/5 & 3/4.

everything you need to know is on the 1st page or 2 of this thread!!!
 

Enraged

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Re: Tookwik's 7M C.O.P. ignition mod w/ stock electronics...pics and writeup

Can anyone tell me the wire color for an 88 coil harness? I chopped mine apart to extend the wires, and have now stupidly forgotten which wire goes to which coil. Obviously there is a common wire (tan on my harness), so I need to know which coil the other wires go to. I looked though the TSRM and couldn't find it, unless theres somewhere else to look in there?

Also, I looked on here: http://www.cygnusx1.net/Supra/Library/TEWD/MK3/manual.aspx?S=Main&P=040 and it shows wire colors, but this is for an 89, so my 88 would be different.
 

Enraged

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Re: Tookwik's 7M C.O.P. ignition mod w/ stock electronics...pics and writeup

figured it out. looking at the coil harness (not the wiring harness):

(Clip)
[G][T]
[W]

[T]=tan, which is the common wire

coil for 1,6: [T]
coil for 3,4: [G][T]
coil for 2,5: [W][T]

Also, if you want to build a new harness, check this out (reposted from a thread in the electrical section): http://easternbeaver.com/Main/Elec__Products/Connectors/Waterproof_Connectors/SM-MT/sm-mt.html

It looks like the 4P090WP-MT is the same as the stock coil harness connector, but double check for yourself (ie, don't blame me if you buy it and it doesn't fit).
 

Enraged

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Re: Tookwik's 7M C.O.P. ignition mod w/ stock electronics...pics and writeup

doubt they would work with the stock ecu, but would probably work if you run an aftermarket ecu
 

boosted2085

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Re: Tookwik's 7M C.O.P. ignition mod w/ stock electronics...pics and writeup

just did the conversion and fired up like a champ...with the old 7m coils it took forever to start
 

twism

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Re: Tookwik's 7M C.O.P. ignition mod w/ stock electronics...pics and writeup

bro your car looks very very good man...
 

supramic

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Re: Tookwik's 7M C.O.P. ignition mod w/ stock electronics...pics and writeup

this might have been stated earlyer but on the wiring note do you have to wire the new coils and diffrent the the stock ones. esentialy all you are doing is extending the wiring harness to fit the new coils
sorry in advance if this was all ready answered jut got my car back and iv been in the fourms for a few hour reading and i dont feel like reading this treads ever post
 

tookwik4u89

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Re: Tookwik's 7M C.O.P. ignition mod w/ stock electronics...pics and writeup

this might have been stated earlyer but on the wiring note do you have to wire the new coils and diffrent the the stock ones. esentialy all you are doing is extending the wiring harness to fit the new coils
sorry in advance if this was all ready answered jut got my car back and iv been in the fourms for a few hour reading and i dont feel like reading this treads ever post
You got it , it's that easy.
 

nerfkhat

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Re: Tookwik's 7M C.O.P. ignition mod w/ stock electronics...pics and writeup

WTF..shouldnt there be oil squirting everywhere. I had a crack in my valve cover and it dumped hella oil into the galley.
 

flubyux2

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Re: Tookwik's 7M C.O.P. ignition mod w/ stock electronics...pics and writeup

There are no oil galleys that are wide open which would squirt. The only way it would come off is when it's slung from the lobes. My oil was cold and thick enough that it was cohering but as it ran longer, it warmed up and the oil thinned.... Then it started to get slung off the lobes. You can def do this enough to diagnose valve tap and verify correct shimming but that's it. If it heats up, "hella" bath in the plug valley. Lol
 

Kai

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Re: Tookwik's 7M C.O.P. ignition mod w/ stock electronics...pics and writeup

Any idea as to the part number for the connector that usually plugs into the coil pack subharness? The engine side of things has collapsed, and has no connectors on it at all, so i need to replace them.

I'm pretty sure its 90980-11268, but does anyone know for sure?
 

Sawbladz

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Re: Tookwik's 7M C.O.P. ignition mod w/ stock electronics...pics and writeup

I ordered my coils a few days ago. Very excited to not have to mount the stock coil packs now that I have a FFIM. I got the seller to include the wiring harness for the connectors as well. I wonder if it is long enough that I don't need to extend mine...
 

Hmong_1G

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Re: Tookwik's 7M C.O.P. ignition mod w/ stock electronics...pics and writeup

Just got mine done today. Idle awesome and quicker throttle response. Pulls freaking hard for only 8psi then before on factory unit. A+ over just buying aftermarket plug wires. My boost gauge reads 6 psi all the way through on the stock ignition system. On the is300 my gauge reads 8 now. Anyone experience this?
 

flubyux2

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Re: Tookwik's 7M C.O.P. ignition mod w/ stock electronics...pics and writeup

I was hitting 12psi on my setup with no boost controller. I retrofitted a ct12a wg actuator to my ct26 and ran 17psi regularly with no blow out. It pulled extremely hard for a ct in the midrange. Of course, near 5000, the power fell off hard, as did the boost.
 

Hmong_1G

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Re: Tookwik's 7M C.O.P. ignition mod w/ stock electronics...pics and writeup

Hum... just out of curiosity... tookwik... must the coils see ground or mounted to a grounding point? I see that you made fancy grounding/holding clips. Is the factory wire ground in harness efficient enough?
 

toyotanos

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Re: Tookwik's 7M C.O.P. ignition mod w/ stock electronics...pics and writeup

These systems don't need an external ground for the coil unit itself- that's just how they work. Crude explaination:
The spark energy goes out the bottom of the coil pack and jumps the first plug gap, then it continues through the head to the plug with that coil's wire and jumps that gap, then returns to the coil via the plug wire.

I would also like to express my thanks to Tookwik for concieving this mod and laying it out for everyone to try. I have done this on my engine and aside from a bum coil, it has been issue free for me. Thank you very much!
 

dusthead

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Re: Tookwik's 7M C.O.P. ignition mod w/ stock electronics...pics and writeup

wiring diagram PLEASE. trying to wrap my head around how the harness is set up...everything else i get completely.
 

Hmong_1G

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Re: Tookwik's 7M C.O.P. ignition mod w/ stock electronics...pics and writeup

Update. I started noticing slight missing at idle when vehicle is warmed up. Thought It was plugs. Checked them out, and looks good. Concern I checked all the three coils for cracks. They check out too. So... just testing I installed back my factory 15+ years 7mgte factory coils/wires. Missing at idle is gone. HUM. There is a good and bad side to this. With the factory 7M ignition I lost 2lbs of boost at gauge. With the is300 coils installed back I gained that 2lbs of boost back. So... I honestly think although It is a waste spark system, the is300 and 7m has different dwell times or something else to have such an effect. I can't prove this as I don't have hard data and schematics.In all good boosting I rather prefer the extra 2lbs of boost ( no spark blowout, complete burns in boost) then a slight missing at idle ( I can feel the misses through my vehicle thanks to urethane mounts).
 

satx88supra

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Re: Tookwik's 7M C.O.P. ignition mod w/ stock electronics...pics and writeup

Mannn I'm in the process of gettin my supra on the road and this is diff on the list of things i gotta do. Seems sooo easy for the response you get from the engine. Has anyone else had any issues running this set-up? How do you think it will respond on long trips (use my supra as commuter mostly) of say 150 miles a day?
 

toyzforme

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Re: Tookwik's 7M C.O.P. ignition mod w/ stock electronics...pics and writeup

I have had no problems with it and I have had them on there for almost a year now. I also took a trip this past summer from Charleston, SC all the way up to the northern part of Ohio with no problems other than a fuel pump relay. which isn't related to the COP mod. I think the guy who posted a miss might have a bad coil pack. It can look good from the outside but still be starting to go bad. I am keeping mine on the car.
 

flubyux2

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Re: Tookwik's 7M C.O.P. ignition mod w/ stock electronics...pics and writeup

It's one of the few things that's not supposed to be on my car that still works flawlessly... Even in spite of my semi-bhg. It still fires up after I unflood the motor of coolant.
 

Inygknok

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Re: Tookwik's 7M C.O.P. ignition mod w/ stock electronics...pics and writeup

By the way, no one ever mentioned it. Will the stock NGK BCPR6ES spark plugs work just fine? I see people running autolites and another set of the NGK's, but not these.
 

Hmong_1G

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Re: Tookwik's 7M C.O.P. ignition mod w/ stock electronics...pics and writeup

UPdate on the is300 coilpack upgrade on my car. After doing some research and following JETJOCKs igniter ground mod, my missing at idle is solved. :icon_bigg
IT ROCKS.
 

RazoE

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Re: Tookwik's 7M C.O.P. ignition mod w/ stock electronics...pics and writeup

I love my IS300coils..

I loved that IT WAS SO EASY..

just switch out the old ones, hook these babies up, and start driving..

the fact that they didn't go all the way in had me worried, until I turned it on for a test fire and everything worked flawless..

just find a way to hold them down and you're gold, and even if you don't they don't really move around, but it's highly recommended...
 

flubyux2

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Re: Tookwik's 7M C.O.P. ignition mod w/ stock electronics...pics and writeup

Update, still running mine after 3 or 4 years. It's been so long, I don't even know how long it's been on there. I am running j30a4 spark plugs, double iridium gapped at .048" and no misfire at redline and 17psi on the stock ct.
 

Justin727

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Re: Tookwik's 7M C.O.P. ignition mod w/ stock electronics...pics and writeup

Yea it's good stuff man. I ordered brand new ones should be in friday!
 

Moy

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Re: Tookwik's 7M C.O.P. ignition mod w/ stock electronics...pics and writeup

This is on my list of things to do. I have a hookup at Lexus, my friend's dad is a GM at one of the dealers and can get me the coils and wires at dealer cost haha