running the 2jz-ge with a 7m-gte..
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in the next coming weeks i will be attempting to do this.. im going to fit the 7m CPS to the GE head and basically throw the 7m wiring harness on the 2jz-ge as if it were a 7m.. enabling me to have a DIS ignition setup and more advantages as well. anyone ever hear of this being done/forsee any obvious problems im overlooking? please share.
Last edited by billdk; 01-24-04 at 05:39 PM.
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Originally posted by billdk
in the next coming weeks i will be attempting to do this.. im going to fit the 7m CPS to the GE head and basically throw the 7m wiring harness on the 2jz-ge as if it were a 7m.. enabling me to have a DIS ignition setup and more advantages as well. anyone ever hear of this being done/forsee any obvious problems im overlooking? please share.
in the next coming weeks i will be attempting to do this.. im going to fit the 7m CPS to the GE head and basically throw the 7m wiring harness on the 2jz-ge as if it were a 7m.. enabling me to have a DIS ignition setup and more advantages as well. anyone ever hear of this being done/forsee any obvious problems im overlooking? please share.
![Egads!](https://www.clublexus.com/forums/images/smilies/pat.gif)
You're not just going backwards as aliga implies, you're going nowhere.
-scott
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scott: by saying 7m harness i was implying the COMPLETE harness... so i'm talking about running the 7m coilpacks/ignitor. how is this going nowhere? i HAVE all the parts i need. any thoughts beyond this then?
it seems whenever me or dave henry post anything about this topic people are quick to flame...
Bill de Koning
it seems whenever me or dave henry post anything about this topic people are quick to flame...
Bill de Koning
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Bill,
Sometimes posts lose their intended meaning. Don't take offense. If you read your initial post you mentioned "harness" and nothing else. I can only read what's in the post. Otherwise, it wouldn't have been necessary for you to clarify that "harness" actually meant including "ecu". Does "harness" also mean "coils" and "igniter"? Cut me some slack here; I'm not into mind reading. Plus, you didn't give any reasons *why* you're going to the 7m setup. I also saw your cross post on SF, and it has more detail. I didn't reply there because replying to a cross-post is monotonous.
Additionally, DaveH and I are good friends (even though we haven't ever met), and I don't recall every flaming Dave about anything. You'll have to show me with a post here or on SF where I have flamed him. I'm sure I've corrected him, but never flamed him.
Now that we know *exactly* what you mean; why would you go with an older ecu just to rid yourself of the distributor? For all the work you're putting in, you should get an AEM and call it a day. An AEM will do 10x more than a 7m ecu, and you won't have to pull your wiring harness. Yeah, it's a little pricy, but at the end of the day turbo charging a car costs a lot of money. Just go ahead and make the investment. You won't be sorry you did when you want to add nitrous, meth injection, 2-step rev limiting, etc. Plus, you have complete control over your fuel and timing to say the least.
So, what do you think is the big advantage here? The OEM distributor/coil is really *very* stout. Shoot, you know DaveH ran 10s with a distributor.
-scott
Sometimes posts lose their intended meaning. Don't take offense. If you read your initial post you mentioned "harness" and nothing else. I can only read what's in the post. Otherwise, it wouldn't have been necessary for you to clarify that "harness" actually meant including "ecu". Does "harness" also mean "coils" and "igniter"? Cut me some slack here; I'm not into mind reading. Plus, you didn't give any reasons *why* you're going to the 7m setup. I also saw your cross post on SF, and it has more detail. I didn't reply there because replying to a cross-post is monotonous.
Additionally, DaveH and I are good friends (even though we haven't ever met), and I don't recall every flaming Dave about anything. You'll have to show me with a post here or on SF where I have flamed him. I'm sure I've corrected him, but never flamed him.
Now that we know *exactly* what you mean; why would you go with an older ecu just to rid yourself of the distributor? For all the work you're putting in, you should get an AEM and call it a day. An AEM will do 10x more than a 7m ecu, and you won't have to pull your wiring harness. Yeah, it's a little pricy, but at the end of the day turbo charging a car costs a lot of money. Just go ahead and make the investment. You won't be sorry you did when you want to add nitrous, meth injection, 2-step rev limiting, etc. Plus, you have complete control over your fuel and timing to say the least.
So, what do you think is the big advantage here? The OEM distributor/coil is really *very* stout. Shoot, you know DaveH ran 10s with a distributor.
-scott
Last edited by motorheaddown; 01-24-04 at 09:28 AM.
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i apologize for not being clear in the first post.
anyways, the 7m ignition system is stout, i know the 2jz-ge distrib setup is as well but believe me, the 7m ignition IS an upgrade compared to the 2jz's distrib setup. anyway, this really is just a hold over until i get an AEM. why am i doing this, you ask? the motor is going into an mk3 supra, which already has all the 7m items i need. in other words, this is better than what i had before with running a 7m motor. same engine management (which is NOT subpar) with a stronger motor.
anyways, the 7m ignition system is stout, i know the 2jz-ge distrib setup is as well but believe me, the 7m ignition IS an upgrade compared to the 2jz's distrib setup. anyway, this really is just a hold over until i get an AEM. why am i doing this, you ask? the motor is going into an mk3 supra, which already has all the 7m items i need. in other words, this is better than what i had before with running a 7m motor. same engine management (which is NOT subpar) with a stronger motor.
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the 7m guys are going 2jz, unless you know something that they have missed out on by upgrading?
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anyways, right now the only issue i can forsee is if the 2jz-GE exhaust cam's distributor drive gear has a different amount of teeth than the 7m's cam does.. this would be a hit or miss issue.. if it does, it would render this whole electronics swap useless! ![Egads!](https://www.clublexus.com/forums/images/smilies/pat.gif)
anyone know the amount of teeth on the 2jz cam?
![Egads!](https://www.clublexus.com/forums/images/smilies/pat.gif)
anyone know the amount of teeth on the 2jz cam?
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Originally posted by billdk
i apologize for not being clear in the first post.
anyways, the 7m ignition system is stout, i know the 2jz-ge distrib setup is as well but believe me, the 7m ignition IS an upgrade compared to the 2jz's distrib setup. anyway, this really is just a hold over until i get an AEM. why am i doing this, you ask? the motor is going into an mk3 supra, which already has all the 7m items i need. in other words, this is better than what i had before with running a 7m motor. same engine management (which is NOT subpar) with a stronger motor.
i apologize for not being clear in the first post.
anyways, the 7m ignition system is stout, i know the 2jz-ge distrib setup is as well but believe me, the 7m ignition IS an upgrade compared to the 2jz's distrib setup. anyway, this really is just a hold over until i get an AEM. why am i doing this, you ask? the motor is going into an mk3 supra, which already has all the 7m items i need. in other words, this is better than what i had before with running a 7m motor. same engine management (which is NOT subpar) with a stronger motor.
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This doesn't answer your question, but the mk3 CPS has 12 teeth that engage the cam distributor gear. I'm sure the number of distributor teeth between the mk3 and mk4 NA exhaust cam are the same.
BTW, where are you going to mount the coils? I thought the 7m-gte had a space over the valve covers.
-scott
P.S. Bill, your enthusiam for this project is refreshening; however, posting duplicate questions on CL and SF probably isn't necessary. The guys who have answers to your questions lurk on both forums. Plus, it'll save you from collecting answers from both web sites.