[labrat1469]

No wife to complain about me spending too much money on a car. No more kids to pay for... Yep it's time to go stupid. This will be my first swap I have attempted. I do have some mechanical background but mostly it's remove and replace experience. I found a early 1989 turbo shell, no motor or transmission. I plan on doing a 2jzge NA build using the stock 7mgte ecu and wiring harness to start off with. Once I get the motor in and running, if I don't have to rebuild the motor after getting it running. I'll look into doing a mild NA-T build.
I've searched the forums for information and found a lot of dead links to pages or sites that do not exist. Also tons of replies telling the person to use the search button that leads to dead links and non existent sites.

This is what i have so far Project: Happily Divorced..

1989 MA71 body.
2jzge non=vvti from a 1997 SC300
Wiring harness from the 7mgte and grey plug 7mgte ecu.
Square mounts and adapters for the 2jz.
W58 transmission with 2jz bell housing
Stage 2 Comp Clutch
2jz flywheel
7mgte AFM
7mgte coil packs
7mgte CPS
7m oil pressure sensor
7m Temp sensor
7mgte injectors
7M IAC
7m Temp sensor
If I have forgotten anything please tell me. Other things needed for the swap:

12 pack Warsteiner Dunkel beer
12 year old Glenfiddich single malt Scotch

This post is getting long enough and people with ADD or ADHD just went
Squirrel!!!!!! Squirrel!!!!!! Squirrel!!!!!! LOOK AT THE SQUIRREL!!!!!

 

[Wreckless]

Nothing like a proper project to get your mind in a better place

If you're starting from square one, I'd look up the Ali_SC3 NA-TT ECU approach:

Ali SC3's 2JZGE Na-T TT Ecu Mod

Hi everyone, this thread was started on clublexus in the sc300/400 section but it also applies to n/a supras so I copied it here. This thread might be updated less frequently than the other one, so if something isn't working or missing also check the original thread. This guide is for use of...

www.supraforums.com

LOTS of advantages over the 7M electronics, and very much worth the trouble and cost over the 7M-GTE ECU (which honestly is junk compared to the 2JZ-GTE ECU)

 

[gothica]

you are WAY, WAY off on the beer....

 

[labrat1469]

Working on replacing the sensors right now. I'm going with the 7MGTE ECU for now. The ECU already has the maps to run the 440cc injectors with mild boost why not use it.

Stage one of the build will be:

Switch over to 7mgte electronics
Converting to CPS (the 7MGTE is already set up for that)
Run 440cc injectors (the 7MGTE is already set up for that)
8 to 10 lbs of boost MAX since I'm running a GE pistons and head gasket (the 7MGTE is already set up for that)

Here is the thread that I'm getting my information from:

2JZGE MKIII with 7MGTE Wiring and Electronics

As discussed in several other threads a few of us have 2JZGE NA-T projects going on right now. I got mine running last weekend so it must be time to start my own thread. My goal is to keep costs down and modifications to a minimum, this includes keeping the 7M wiring with as few modifications as...

www.supramania.com

As for the beer I would rather have Spaten Optimator. I also drank Warsteiner when I lived in Germany.

 

[gothica]

oh, it's not the brand. It's the quantity....

 

[labrat1469]

oh, it's not the brand. It's the quantity....

Oh ok. I don't drink as much as I to because I no longer have that reason around me anymore...🤣

 

[CTsupra]

This thread has my nether region all tingly.

 

[2jzturbo92]

Nice! I just broke down my 95 2jzge that is going in my 91. My motor appears to be in good shape internally for 150,xxx miles. It’s gonna get some new rings , bearings and gaskets. I’m gonna be putting a small turbo on it right off the bat though.
I look forward to seeing your project progress.

 

[Reluctanse]

Subbed!

 

[signalpuke]

Oh ok. I don't drink as much as I to because I no longer have that reason around me anymore...🤣

Yeah, you replaced it with this project.

 

[labrat1469]

While I wait for parts and time off I have this stuff sitting around....

 

[2jzturbo92]

Nothing like a proper project to get your mind in a better place

If you're starting from square one, I'd look up the Ali_SC3 NA-TT ECU approach:

Ali SC3's 2JZGE Na-T TT Ecu Mod

Hi everyone, this thread was started on clublexus in the sc300/400 section but it also applies to n/a supras so I copied it here. This thread might be updated less frequently than the other one, so if something isn't working or missing also check the original thread. This guide is for use of...

www.supraforums.com

LOTS of advantages over the 7M electronics, and very much worth the trouble and cost over the 7M-GTE ECU (which honestly is junk compared to the 2JZ-GTE ECU)

Wreckless thanks for that link. I would have never looked there for a sticky. I’ve seen the one for using 7m electronics. I have a Supra manual ge harness with ecu, dh61 igniter, gte igniter, vvti coils, gte coils,7m cps,7mgte harness with ecu. I have some reading to do figure out how I’m gonna Frankenstein something together.
I would like to mount a gte oil pump to have the crank trigger for future standalone.

 

[Wreckless]

Wreckless thanks for that link. I would have never looked there for a sticky. I’ve seen the one for using 7m electronics. I have a Supra manual ge harness with ecu, dh61 igniter, gte igniter, vvti coils, gte coils,7m cps,7mgte harness with ecu. I have some reading to do figure out how I’m gonna Frankenstein something together.
I would like to mount a gte oil pump to have the crank trigger for future standalone.

Happy to help! 🍺

Sadly only the 7M-GTE's stock injectors will be useful for the 2JZ-GE w/2JZ-GTE ECU method. No other 7M parts needed there. Use the distributor cam position output for the CPS signal to the 2JZ-GTE ECU, good to go regardless of the ignition system. There's a few companies that offer billet cover plates to delete the rotor etc entirely and make the stock GE distributor a CPS of sorts that way. It's also a much better sensor than the 7M's CPS.

The 7M-GTE harness will be needed to harvest a few plugs off of it to build the whole adapter harness to use a LHD 2JZ-GE wiring harness with the various add-ons needed to run the COP ignition and 2JZ-GTE specific sensors. I'd keep an eye out for SC300's being parted out to get that done.

On the crank trigger - just remember if you're using the non-vvti 2JZ-GTE stock ECU, you need a non-vvti 2JZ-GTE crank trigger wheel which is the 12 tooth version. If you're going to use a standalone, I'd opt for the VVTi version which is a 36-2 trigger wheel and offers much better signal fidelity.

 

[2jzturbo92]

Happy to help! 🍺

Sadly only the 7M-GTE's stock injectors will be useful for the 2JZ-GE w/2JZ-GTE ECU method. No other 7M parts needed there. Use the distributor cam position output for the CPS signal to the 2JZ-GTE ECU, good to go regardless of the ignition system. There's a few companies that offer billet cover plates to delete the rotor etc entirely and make the stock GE distributor a CPS of sorts that way. It's also a much better sensor than the 7M's CPS.

The 7M-GTE harness will be needed to harvest a few plugs off of it to build the whole adapter harness to use a LHD 2JZ-GE wiring harness with the various add-ons needed to run the COP ignition and 2JZ-GTE specific sensors. I'd keep an eye out for SC300's being parted out to get that done.

On the crank trigger - just remember if you're using the non-vvti 2JZ-GTE stock ECU, you need a non-vvti 2JZ-GTE crank trigger wheel which is the 12 tooth version. If you're going to use a standalone, I'd opt for the VVTi version which is a 36-2 trigger wheel and offers much better signal fidelity.

I did get the complete 2jzge with ecu and harness from a lhd Supra minus the alternator. I should have the plugs to harvest from an old 7m harness. I did my gte swap in my 92 in 06 so I vaguely remember a couple plugs in glovebox and one under hood at fuse box. I had a jdm gte ecu and butched harness but can’t seem to find ecu yet.
I do appreciate this forum still exists cause I can’t seem to wrap my head around the Facebook group stuff

 

[Reluctanse]

Happy to help! 🍺

Sadly only the 7M-GTE's stock injectors will be useful for the 2JZ-GE w/2JZ-GTE ECU method. No other 7M parts needed there. Use the distributor cam position output for the CPS signal to the 2JZ-GTE ECU, good to go regardless of the ignition system. There's a few companies that offer billet cover plates to delete the rotor etc entirely and make the stock GE distributor a CPS of sorts that way. It's also a much better sensor than the 7M's CPS.

The 7M-GTE harness will be needed to harvest a few plugs off of it to build the whole adapter harness to use a LHD 2JZ-GE wiring harness with the various add-ons needed to run the COP ignition and 2JZ-GTE specific sensors. I'd keep an eye out for SC300's being parted out to get that done.

On the crank trigger - just remember if you're using the non-vvti 2JZ-GTE stock ECU, you need a non-vvti 2JZ-GTE crank trigger wheel which is the 12 tooth version. If you're going to use a standalone, I'd opt for the VVTi version which is a 36-2 trigger wheel and offers much better signal fidelity.

I don't want to derail this thread so I'll start a new one if it's worth discussing, but what about going the other way.... setting up an Aristo 2JZ-GTE ecu to run a 7M? Crank trigger would need to be installed.... would this be possible? Those ECU's go for $2-300 all day long. Or is this almost as off the wall as my GM ecu idea..?

 

[Wreckless]

I don't want to derail this thread so I'll start a new one if it's worth discussing, but what about going the other way.... setting up an Aristo 2JZ-GTE ecu to run a 7M? Crank trigger would need to be installed.... would this be possible? Those ECU's go for $2-300 all day long. Or is this almost as off the wall as my GM ecu idea..?

After reading through @Ali_SC3's priceless thread, and having an enticing lead on a local built 7M-GTE longblock gathering dust, I'm actually working out the details on that myself.
The 2JZ-GE dizzy is used to get crank position for the Ali_SC3 ECU swap, so no need for that right away, and I'm 95% sure you could use the original 7M coils with the DS62 igniter re-wire. Mod the the dizzy to fit the CPS area under the PS reservior, wire in all the 2JZ sensors as needed for the ECU, figure out the TPS situation, use an Acura Legend or similar resistor pack to keep the 7M-GTE low imp injectors, re-do the injector wiring to match the 2JZ ECU, hybridize the harness for gauge cluster etc, and Bob's your Uncle. Using a USDM 2JZ-GTE ECU would require the matching MAF but that'd hypothetically be solid to ~500whp or so with no fuss, no muss, and some basic bitch low imp 550's.

It wouldn't solve the fundamental flaw of not having crank position measured from the actual crankshaft itself, so 'jitter' between commanded ignition timing and actual ignition timing would be flapping around in that +/- 2-4* window, but it'd be factory MAP, it wouldn't be constantly advancing timing into detonation like the 7M ECU, and the stock timing map is a lot less stupid. The base timing could be adjusted at the GE distributor, unlike the stock 2JZ-GTE sensors, and running

Wiring in the 2JZ-GTE's VR crank sensor would be hypothetically possible, since SR-Fab makes a 12 tooth crank trigger option for their hall effect sensor kit and the 2JZ-GTE non VVTi's crank trigger is 12 tooth. So one could hypothetically get just the timing belt drive gear with the 12 tooth wheel from SR-Fab and do your own fab work to mount the 2JZ crank sensor accordingly. Only homework there would be to verify the differences in tooth gap doesn't throw things off, and ensuring the sensor position matches the 2JZ-GTE's just in case that is somehow critical to the stock ECU despite it being a straight 12-tooth trigger.

I'd love to take a stock 7M-GTE longblock down that road and lean into it, just to see how many of the BHG/rod knock situations might have been exacerbated by the 7M ECU's poor timing strategy.

 

[labrat1469]

I think the worse part of a 2jz swap is that a lot of the sites we went to for information are no longer active.

 

[2jzturbo92]

I’ve been on this forum since 2004 and supramania a couple years after that. I’d hate for a site like this to disappear,then we would have nothing. It’s not like I can rely on my senior brain 🤣

 

[labrat1469]

I was on Supramania for awhile then got tired of the BS. And now even if the search says the thread is there it's a crap shoot if its still available. A lot of information has vanished over the past few years

I plan on documenting and taking pics of every step of this build. Hopefully I will have the 89 sitting in my work area by Monday night. The person who has my 88 was one of the guys that help me build it. Whenever I needed help he was always there and never asked for anything in return. This was my way of paying him back for all that he has done for me. You should have seen his face when the rollback dropped it off in his driveway and I handed him the title. Tomorrow I have to load up the blown up 7mge and w58 to take over to him.

 

[2jzturbo92]

Wow that’s awesome of you,now you have a cruising buddy. I wish one of my friends wanted my 91, I would cut my loss and set them up.I dropped my block at the machine shop today.

post up some pics for us of your progress.👍🏻