JDM 2JZ-GTE engine swap info!! what's needed and how to;

**Sins4u33** · 05-30-2006 05:17 PM

i did my swap with a US spec harness and a JDM ecu....worked just fine didnt have to rewire anything, plugged right in.

Ben Y

**Jimnen** · 08-30-2006 09:29 PM

If I get a complet JDM setup (engine, turbos, ecu, harness) from a supra not aristo, will it work without having to mess with oil pan and harness?

I read the thread but it is confusing, some people say yes while others say no. If anybody has done a complete swap from a JDM please let me know

**Sins4u33** · 08-31-2006 02:13 PM

mine is completely JDM! the motor and everything didnt have to swap the oil pans, only thing i did was change to a US harness and it works perfectly nothings wrong! lemme know if you have any questions about anything i am on aim also my screenname is supra95sp77

Ben Y

**Jimnen** · 09-04-2006 06:24 PM

what kind of tranny did the jdm motor you are using originally had, does the 5 speed of the na work fine with the jdm ecu?

I thought jdm used the v161 so there would be issues

Thanks

BTW those are nice numbers you are putting down...are those the jdm turbos too?

**Sins4u33** · 09-04-2006 07:36 PM

the motor had an automatic tranny on it, but i used the stock n/a 5spd manual tranny all i did was upgrade the clutch and it was fine. yeah the 5spd works great havent had any problems yet, its alittle notchy but any tranny not ment for 400whp will do that. the JDM 6spd is a v161 but i dont beleive there would be issues.

yup :-D those are on stock JDM turbo 405whp

not too bad for some small ct26's

Ben Y

**eskinol** · 10-04-2006 01:16 AM

Originally Posted by Sins4u33

mine is completely JDM! the motor and everything didnt have to swap the oil pans, only thing i did was change to a US harness and it works perfectly nothings wrong! lemme know if you have any questions about anything i am on aim also my screenname is supra95sp77

Ben Y

May I ask why you swapped to a us spec harness instead of using your jdm harness?

Does this mean your using the JDM Map sensor, WP, fan, and everything else included in the jdm motor that people would usually swap to use on an aristo 2jz?

Thanks

-esk

**Sins4u33** · 10-04-2006 10:25 AM

of course the JDM harness was not long eneough, you have to extend it and that is a very time consuming process, i had the option to get a mint 6spd harness so i did it.

the jdm map sensor plugged in, the water pump is the same design as a US one....i am not sure what you mean about the fan but the clutch fan was the same as a TT clutch fan. I didnt have to swap any of this stuff, i only swapped the injector clips off the JDM harness onto the US harness and i dont run a resistor box, because i am not running low impedance injectors. I am running high impedance injectors i basically just closed the circuit there is a thread somewhere that shows you or i can take a picture if you really wanna see.

Ben Y

**eskinol** · 10-04-2006 03:05 PM

Please, this would be much appreciated by myself and great for the future reference for others.

Thanks again

-esk

**Sins4u33** · 10-05-2006 06:27 PM

no problem lemme dig it up for you guys...

Ben Y

**Syndicate** · 10-18-2006 07:06 PM

I am trying to decide to swap in a JDM 2jztt into a 91 300zx of mine I have just sitting around with nothing to do with. Will the following work for me? I need to know, will the US harness just plug into all the sensors on the JDM engine and auto trans? Then just plug it into a US ECU or run the AEM plug and play. Then I change out the injectors to US ones, cams to US ones, and I plan on going single right off the bat, along with swapping in a MAF off a US 2jztt. Is there anything I missed or need to do?

**makipsee** · 10-18-2006 07:12 PM

well a jdm 2j has a map sensor and ull need a resistor box for the injectors b/c the jdm injectors r high imped. and US r low imped.

**PSiedSC300** · 11-27-2006 07:47 PM

Originally Posted by blaze15

2. plugs in directly with the exception of the secondary fuel pressure sensor.

Not to bring this back up, but:

Is that a big problem if it is not hooked up? Or can it be easily wired in to the harness?

**Altezza576** · 11-27-2006 08:00 PM

Anyone attempted this with an AEM for an NA/SC300? I am thinkin of buying the JDM 2JZ-GTE and reworking the stock NA harness & AEM to control the JDM motor. I figured I'd just have to reroute the Throttle Body stuff. I would probably stay single turbo on it though.

This was an interesting thread.

**T78supra** · 12-16-2006 09:59 PM

I'm finishing up an Aristo Conversion we just did for a customer.

Just saw this thread, too bad I had to figure all this stuff out myself, This thread would have been a help.

I have a ton of pics, I will try to put together a how to when I get a chance.

**Altezza576** · 12-18-2006 09:44 PM

^^ That would be great. I am gonna build this up into a PT61 single with 264 cams. I just wanna make sure that I understand any repinning that needs to be done. Wiring doesnt scare me as long as I have a general idea of what to expect.

**black93supra** · 12-18-2006 10:19 PM

Originally Posted by JDMSUPRA

Of course the US harness will plug directly into the US spec Supra. The Supra Jap spec harness sounds simular to the US harness, but nobody has tried it.

I have a na - tt swap and i have a us spec harness jspec ecu.. tach signal was a small problem but was fixed..

**bpusupra** · 12-18-2006 10:22 PM

Originally Posted by Altezza576

Anyone attempted this with an AEM for an NA/SC300? I am thinkin of buying the JDM 2JZ-GTE and reworking the stock NA harness & AEM to control the JDM motor. I figured I'd just have to reroute the Throttle Body stuff. I would probably stay single turbo on it though.

This was an interesting thread.

I'd just buy the US tt harness for 850-900$ or whatever it cost along with the tt US ecu it'll save you alot of trouble, this is the way i went its alot easier.

*** When swaping a 2jzgte into an NA supra you have to change some pin outs in the TT ecu for the NA chasis harness like the tach... Just stating even though I know most of you know.

**kmn5** · 12-20-2006 09:37 AM

Sorry off topic:

BPUSupra, tried to email/pm you but it's not enabled in your profile
shot me a email about the map ecu
kmn5@yhaoo.com

**Altezza576** · 12-24-2006 11:13 AM

Originally Posted by bpusupra

I'd just buy the US tt harness for 850-900$ or whatever it cost along with the tt US ecu it'll save you alot of trouble, this is the way i went its alot easier.

*** When swaping a 2jzgte into an NA supra you have to change some pin outs in the TT ecu for the NA chasis harness like the tach... Just stating even though I know most of you know.

$900 is waaaayyy too much money to spend on a harness if a few reroutes and soldering a few connectionson the existing one is all that is necessary. Im pretty handy in the garage and I am a firm believer in throwing money at a problem is not the best way to solve a problem

I will have the JDM harness that came with the motor as well as the OEM NA Supra harness. I think between them both, t can be fabbed. I already have a new AEM EMS for an NA Supra. I figured it cant be much different

**SoarerTT** · 12-24-2006 07:23 PM

Which pins need to be moved around? Im especially curious about the tach. I recently did a swap on a NA supra and the tach did not work, even with a tt tach.

**SupraMang** · 12-26-2006 04:52 PM

Quick question... if you bought all the parts and were to pay for someone to do the swap for ya.. how much would you gather labor would be for the swap.. stock motor.. nothing fancy.. just getting a TT motor installed on a 5spd N/A

**Altezza576** · 12-27-2006 11:47 AM

^^ $2000ish

Question:

How are you all addressing the ignition hurdle? Im sure the Distributor & Coil Ignition wiring doesnt quite work with the individual coil pack ingnition on the GTE. Im also certain that the Ignitor that is needed is not included when you buy a motor swap w/harness ?

**Skyhigh** · 01-07-2007 12:59 AM

So just curious, is it really that had to modify a harness? Is the only part that needs to be lengthened the section that goes to the ecu. Would it not be best to try and find a JDM Supra 2JZ with harness and ecu then to get a aristo 2JZ and make all the changes. Plus isn't the JDM Supra 2JZ a MAP engine and if I had plans in the future on upgrading to a big single I would be switching to MAP anyway right. Am I wrong in any of these assumptions or and I talking out of my butt.

**supradriver247** · 01-07-2007 02:13 AM

Originally Posted by Skyhigh

So just curious, is it really that had to modify a harness? Is the only part that needs to be lengthened the section that goes to the ecu. Would it not be best to try and find a JDM Supra 2JZ with harness and ecu then to get a aristo 2JZ and make all the changes. Plus isn't the JDM Supra 2JZ a MAP engine and if I had plans in the future on upgrading to a big single I would be switching to MAP anyway right. Am I wrong in any of these assumptions or and I talking out of my butt.

thats true, but its not that easy. You would have to lengthen each wire one-by-one and it would be a pain. If your up to it do it.

The jdm/aristo ecu is high impedance and us ecu is low impedance. I dont think they make low impedance injectors higher than 440ccs(correct me if im wrong). In addition, the pinouts are probably different.

**spooledmgbgt** · 01-07-2007 05:17 AM

The Aristo wiring harness does not plug and play to an AEM, which in my case neccesitated buying a new US harness. If you use an auto, the JDM output shaft only has 3 bolts holding the driveshaft, whereas the US version has 4 bolts. An output shaft can be bought from Toyota and is a direct replacement as the transmissions are exactly the same other than that.

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