1JZ Differences

supra1008

supra1008

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May 2, 2007
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Hey everyone,

Are there any differences between 1JZ-GTE's on different cars. For example, is the 1JZ-GTE engine and parts the same in a Supra, Soarer, Chaser, Verossa, Crown... I know the water pumps are different in a supra and a soarer. But other than that, are there any other parts different between the these cars?
 
The Reaper

The Reaper

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Jan 10, 2006
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other than what you meantioned, and motor mounts, and trans, and possible VVTI, engine harness and ecus are all diff.
 
xsjado

xsjado

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Jul 15, 2007
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Just wondering, since you said that they all have the different engine harness, would I be correct to assume that if I have a 1jz from a Chaser, that I will need the same engine loom? Or can I use a JZA70 engine loom with a Chaser 1jz. I always though I could do this no problem since I am replacing my 1jz from a JZA70 with a fresh engine from a Chaser. I thought it would just be a matter of changing the sump over from the JZA70 1jz and a few other odds and ends and I would have a running engine. I hope I don't have to find a Chaser engine loom or hack up my current one :cry:.
 
The Reaper

The Reaper

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xsjado;953679 said:
Just wondering, since you said that they all have the different engine harness, would I be correct to assume that if I have a 1jz from a Chaser, that I will need the same engine loom? Or can I use a JZA70 engine loom with a Chaser 1jz. I always though I could do this no problem since I am replacing my 1jz from a JZA70 with a fresh engine from a Chaser. I thought it would just be a matter of changing the sump over from the JZA70 1jz and a few other odds and ends and I would have a running engine. I hope I don't have to find a Chaser engine loom or hack up my current one :cry:.
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doing it that way then yes it should work fine. if you are talking about that you already have a JZA70 engine harness and JZA70 ECU, and just want to buy a chaser longblock, then yes everything should work after switching pans. although, why not buy a JZA70 1J?
 
R

Ric

Setting the standard
Feb 22, 2007
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www.1jzgte.us
Yes, ALOT of differences. Just in the soarer alone that I know, and theres more:

There are 6 engine harnesses out
91-94 auto/manual
94-96 a/m
97-200 a/m

Then you also have Generation Differences in Soarers.
Gen 1 = 91
Gen 2 = 92-96
Gen 3 = 97-2000

Now, what about all the other cars?

The Supra and Gen 1-2 Soarer share nothing electrically except some sensors and the given stuff like coil packs.
The cooling systems are different. Transmissions different. Downpipe/exhaust different. Different throttle body.

What do the Chaser and Soarer share? Mostly everything except oil pans. Harness has differences but ECU's are direct plug and play between eachother.

Chaser and Supra? Please read Supra and Soarer.

What about the VVTI from 1997 to 2006? Not alot of information is out there for these cute motors. The basics still apply.. don't expect to plug in a Verossa motor in a Soarer or Mark II Bilt.

Sorry, but the Supra only got to Gen 1, no VVTI without some major work.

Please note:

Backwards compatibilty is insane. You want to install a 1994 Soarer motor in your Supra? Sure, simply unbolt all the soarer specific things, and bolt on your 1jz Supra specific things.

Want a Verossa 1JZ-GTE VVTi in your 1991 Supra? Not an issue, just swap things out. The only thing you won't have is VVTI due to 1991 ECU not having that in it's program or harness.

What about a 2JZGTE in your 1JZGTE Soarer? Easier the pie, you'll just need a SAFC2 to control the larger injectors on the 1JZGTE ecu.
 
xsjado

xsjado

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The Reaper;953805 said:
doing it that way then yes it should work fine. if you are talking about that you already have a JZA70 engine harness and JZA70 ECU, and just want to buy a chaser longblock, then yes everything should work after switching pans. although, why not buy a JZA70 1J?
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Not buying another JZA70 1J as they are not as easy to come by, tend to have more k's on them, and wasn't for sale at the same time that the JZX90 1J was :). Buying the complete engine minus loom and ecu, but I have been told that the JZA70 and JZX90 1J's are the same, and if not I can just swap over anything that doesn't match up right?
 
M

Mischief7m

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does anyone know what the actual differences are between motor brackets on a soarer 1j and a supra 1j? like how can i tell the difference by just looking at the engine?
 
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bluemkiii

bluemkiii

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mischief7m;956482 said:
does anyone know what the actual differences are between motor mounts on a soarer 1j and a supra 1j? like how can i tell the difference by just looking at the engine?
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Well they look skinnier and longer and on the intake side the fuel pressure regulator is not mounted on the motor mount and on the jza70 mounts it is mounted on the mount/bracket.
 
M

Mischief7m

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bluemkiii;956520 said:
Well they look skinnier and longer and on the intake side the fuel pressure regulator is not mounted on the motor mount and on the jza70 mounts it is mounted on the mount/bracket.
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sorry, i think i get what your saying, but could you be a little more specific with what "they" are, (they = soarer or supra) and do you mean the fpr is mounted on the mount on the soarer or the supra?
thanks and sorry for the confusion
 
supra1008

supra1008

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mischief7m;956648 said:
i understand that jza70 = supra. i just need you to use a better formed sentence using less pronouns. so i can understand which they means what
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Yes JZA70 is the code for supra in japan. In the US it's MA70... If you're not sure about the codes just google it. Thats what I did a while ago.
 
xsjado

xsjado

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supra1008;957615 said:
Yes JZA70 is the code for supra in japan. In the US it's MA70... If you're not sure about the codes just google it. Thats what I did a while ago.
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Sorry thats not true, Japan also has MA70's... JZA70=1jz-gte, MA70=7m-gte and GA70=1g-gte.
 
I

IJ.

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Mar 30, 2005
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supra1008;957615 said:
Yes JZA70 is the code for supra in japan. In the US it's MA70... If you're not sure about the codes just google it. Thats what I did a while ago.
Click to expand...

Try not to post things as fact without doing some research to verify it....:nono:
 
M

Mischief7m

Broke and Lovin It
Sep 13, 2007
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i understand the codes. m=7m jz= jz. what i am asking and have been asking is how can i tell the difference between a soarer 1j and supra 1j. what about the mounts is different?
thanks
 
tsuper92

tsuper92

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Apr 7, 2005
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mischief7m;958862 said:
i understand the codes. m=7m jz= jz. what i am asking and have been asking is how can i tell the difference between a soarer 1j and supra 1j. what about the mounts is different?
thanks
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trev he was saying the supra 1j has a fuel damper mounted to the driver's side motor mount.it is the feed for the fuel rail which run's to the back of the fuel rail.i have no idea how it is on a soarer,but i can send you a couple of pic's of my mount's if you want.
this pic doesn't show alot but maybe it will help.driver's side

p958999_1.jpg
 
tsuper92

tsuper92

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they might mount to different location's on the block also.here is an old pic of my 1j,when i was doing my single turbo conversion.the only pic i have of the passenger side loaded on photobucket
p959004_1.jpg
 
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