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Location:
Whyalla
Registered:
June 2004
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What cars come with front sump 1JZGTE's?
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Sun, 05 December 2004 04:56
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Ever since I ordered my 1JZ engine package they told me it was a front sump from a JZA70 Supra. I thought all front sump 1JZ's were from CHasers, because when I went to order the engine I specifically asked for a CHaser JZX81 Front cut, but ended up with just the 1JZ engine package 
Weve had wiring troubles from day one, and have found out that the original ECU and wiring loom must be off either a Soarer or Chaser as the plugs were 4 pins high but the Supra ones were only 3 pins high (found this out by a stroke of luck because my Apexi turbo timer came with ECU pinoutrs for lots of cars.).
Instead of trying to wire the loom up that he we are stuck with now, a guy in Sydney said if we can tell him what car and what engine it is, he can send me a complete loom with wiring diagrams. The possibilities are narowed down to either the T8-a, T8-b, or T8-c ECU's. Reason why we cant tell which one it is, is because the original loom that came with the engine had 2 ECU plugs that were completely smashed, thats why we sent it back, then sent us back a completely different loom And each of those 3 ECU mentioned above have the ground and OS Sensor wires in a different spot.
Sorry for the long post, I hope someone can make sense of it all lol
[Updated on: Sun, 05 December 2004 04:58]
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Location:
Perth
Registered:
October 2002
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Re: What cars come with front sump 1JZGTE's?
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Sun, 05 December 2004 06:10
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1JZ's with front sumps: JZX80, JZX90, JZX100/110.
Now, unless you've noticed a second (TCCS)throttle or VVTi, AFM and single turbo, I'd say you've got a JZX80 Chaser (or something else with a Chaser sump). 4 pin sounds vaguely familiar - maybe JZX90.
JZX80 wiring looks a little like this (  ):
http://www.1jz-gte.us/documents/SubDocs4/chaser.pd f
Good luck! I'm taking some photos of my half-cut letf-overs in the next week or two - let me know if you want pics of JZX90 ecu and loom.
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Location:
Whyalla
Registered:
June 2004
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Re: What cars come with front sump 1JZGTE's?
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Sun, 05 December 2004 08:35
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I got the twin turbo non-vvti 1JZGTE, it has the second throttle body (traction control), but we will wire it up then diconnect it as my Cressida doesnt have ABS brakes. If only the connectors on the original loom wernt smashed the car would have been done in about 5 weeks, but were now into the 7th month of the swap .
That would be great if you could send me some pics!!
My email is eptrophy@ozemail.com.au
Were pretty sure its from a Chaser, but its just hard to know which ECU it is. Once I know for sure which one it is, I can let this guy know and he can send me a complete loom with ECU and wiring diagram, then it shouldnt take long to get it all wired up and on the road 
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Location:
Perth
Registered:
October 2002
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Re: What cars come with front sump 1JZGTE's?
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Sun, 05 December 2004 09:19
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Hey, if it's any colsolation - my swap took about 11 months.
And that certainly sounds like a JZX90 Chaser to me (same as I used - though I ended up going aftermarket ECU).
Won't be for a week or two, but I'll send you pics of my 1995 auto JZX90 (MkII) ECU and loom.
Justin
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Location:
Whyalla
Registered:
June 2004
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Re: What cars come with front sump 1JZGTE's?
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Sun, 05 December 2004 09:37
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Are you happy with the swap? Ive never driven a turbo car before  What sort of numbers can I expect to see when the swap is done?
Cool, thats what we were thinking, because I think the JZX81 ECUs were 2 row pins, so I think it narrows the ECU search down a bit. Im not too sure at the moment because the turbo timer ECU pinouts are at the mechanics, but I'll go have a look tomorrow and check it out again.
Just out of interest, what aftermarket ECU did you choose, are there any that you would recommend?
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Location:
sunny coast, qld
Registered:
October 2002
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Location:
Whyalla
Registered:
June 2004
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Re: What cars come with front sump 1JZGTE's?
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Sun, 05 December 2004 12:35
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So its more than likely the JZX90? Now all it leaves it to work out which ECU it is, should narrow done to a chocie of two...I'll get more details tomorrow.
Excellent, 200kw at the wheels + sounds good 
They are??? What is this "tuning" you speak of? 
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Location:
sydney
Registered:
March 2003
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Re: What cars come with front sump 1JZGTE's?
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Sun, 05 December 2004 12:47
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the loom has to match the ecu
and the loom has to match the gbox
on the engine i think the loom is similar except for lil probs like aircon which doesnt matter anyway
but the main difference is the back section of the gbox
where the looms vary
so the loom has to match the gbox and the ecu
one gbox has a 3 wire sensor the other ecu has a 2 wire sensor
there is 3 types of ecus
3 plugs each 2 rows
4 plugs each 4 rows
2 plugs one 40 pins other plug 2 lots of 40 pins
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Location:
Whyalla
Registered:
June 2004
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Re: What cars come with front sump 1JZGTE's?
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Sun, 05 December 2004 13:16
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yeh thats whats happening at the moment, the wiring loom supposedly matches the ECU, all the plugs go in except the flyer wires are different, and I think its a Soarer wiring loom that weve been supplied with. The original loom we had before we sent it back, was the 4 plugs with 4 row pins ECU.
On the turbo timer pinouts it shows three different 4 plug 4 row ECUs, the T8a to the T8c, im not sure which one we need because each one has the ground sensor and OS sensors in different spots. But if I can find out which one it is, the guy can get me a complete loom with matching ECU for the engine, with matching wiring diagram.
mmm, the wires for the transmission are totally different from the first loom we had.
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Location:
sydney
Registered:
March 2003
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Re: What cars come with front sump 1JZGTE's?
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Sun, 05 December 2004 21:43
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so the loom has the 4 big plugs
and the small flyer plug on the side
or the ecu has the small flyer plug comin out the side of it
i can find out what loom and ecu it if it has the flyer plug as i have done my friends cressida with that tyype of ecu and loom
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I supported Toymods
Location:
Australia
Registered:
November 2003
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Re: What cars come with front sump 1JZGTE's?
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Mon, 06 December 2004 01:06
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| woofa347 wrote on Sun, 05 December 2004 16:35 |
If only the connectors on the original loom wernt smashed the car would have been done in about 5 weeks, but were now into the 7th month of the swap
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You see by now, I would have said fuck it, bought an aftermarket ecu, and a manual transmission, and had my car on the road months ago.
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Location:
Whyalla
Registered:
June 2004
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Re: What cars come with front sump 1JZGTE's?
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Mon, 06 December 2004 02:13
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Thats what is annoying us, because we are trying to get the original loom and ECU that come with the engine which was the 4 big plugs with 4 row pins, when we sent the original loom back as all the ECU plugs were smashed to bits, the replacement loom and ECU they sent back to us is meant for a Supra (Toyota T6-a ECU , 4 plugs, 2 row pins), and the flyer wire coming from the ECU is a totally different plug to the loom one (different shape, and ECU has 8 pins, loom has 10 pins).
When we ordered the engine, they didnt send us the ECU at first for warranty reasons, so I cant tell you what the flyer wire looked like sorry, but I can ask my mechanic and see if he remembers what the loom flyer wire looked like.
So yeh....lol. Im hoping to track down the loom we need so we can tell this guy what one it is, he can send the complete loom, ECU and wiring diagram, and start from scratch. With the right loom and everything it shouldnt take too long though.
I agree with you Cruzida, nut I dont exactly have the money lying around to get aftermarket ECU and swap to manual trans, have Uni to pay for aswell....
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I supported Toymods
Location:
Australia
Registered:
November 2003
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Re: What cars come with front sump 1JZGTE's?
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Mon, 06 December 2004 02:17
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| woofa347 wrote on Mon, 06 December 2004 10:13 |
I agree with you Cruzida, nut I dont exactly have the money lying around to get aftermarket ECU and swap to manual trans, have Uni to pay for aswell....
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I didn't have the money to begin with either, but after 4 months of fucking around with wiring, I suddenly had the money for an ecu
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Location:
Whyalla
Registered:
June 2004
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Re: What cars come with front sump 1JZGTE's?
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Mon, 06 December 2004 02:35
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I have drawn up some rough diagrams of the trans wires and speed sensor diagram we were given if they can help track down what loom I need. Im just really annoyed that we were supplied the wrong loom and everything 
The pics are on my cardomain webpage below:
http://www.cardomain.com/memberpage/619534/3
hopefully there read-able.
Sorry for the crap diagrams, was in a bit of a hurry. The trans is 23 spline if that helps?
The other diagram is of the ECU pinouts I was talking about that come with my turbo timer. The T6-a ECU that is circled is the one that they have supplied us with now. I think the one we need is one of the T8 ECU's. From the diagram it says the T8's were used in Soarers and Chasers, but as mine is front sump it would have to be from a Chaser right?
And if we get a loom made for the Chaser with matching ECU it shouldnt really matter which one of the T8 ECU's we get ? Except that the trans wires will need to be the same of course.
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Location:
Whyalla
Registered:
June 2004
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Re: What cars come with front sump 1JZGTE's?
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Mon, 06 December 2004 02:36
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nice! WHat aftermarket ECU are you using? Is there a particular one you would recommend for the 1JZ? I have heard of someone using a Haltech that had 1JZ maps included
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Location:
Perth
Registered:
October 2002
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Re: What cars come with front sump 1JZGTE's?
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Mon, 06 December 2004 02:55
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Yeh, I love the 1JZ! Though I'm strating to hunger for a bit more power now  Trust me, when you do hit the road, it will all be worth it!
With those mods AND a programmable management, you'll probably come close to 300rwhp. I'm using the Haltech E6X (1JZ base map) with 3 bar MAP sensor and electronic boost control solenoid (gets you onto boost DAMN fast). Excellent idle and ancillery control for the money. See: http://www.tweakit.net/shop/product_info.php?cPath =&products_id=92
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Location:
sunny coast, qld
Registered:
October 2002
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Re: What cars come with front sump 1JZGTE's?
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Mon, 06 December 2004 02:56
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yeah, that is Celia-Sue. People have used microtech LTX12's, Haltechs and Wolf 3d's. All seem to work fine so if you are going to go aftermarket you just get one that your tuner knows about.
BTW my wolf 3d doesn't come with a base map but I found one on the internet anyway.
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Location:
Whyalla
Registered:
June 2004
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Re: What cars come with front sump 1JZGTE's?
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Mon, 06 December 2004 03:02
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Sounds great. Im hoping to stick with what I have for now, then do everything all at once like replace twin turbos to T28BB's , injectors, and ECU Im so broke right now lol
So with the haltech would I still need the hiperboost system? The haltechs were fairly decent for the price wernt they
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Location:
Perth
Registered:
October 2002
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Re: What cars come with front sump 1JZGTE's?
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Mon, 06 December 2004 03:10
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Nah, you get the Haltech (E11 is the top-shelf model), then for an extra $120, get the wastegate soleniod for total electronic boost control. Which is better than any manual bleed valve and would set you back around $500 as a stand-alone unit.
Say, where are you getting your split dump-pipes from?
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Location:
Whyalla
Registered:
June 2004
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Re: What cars come with front sump 1JZGTE's?
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Mon, 06 December 2004 03:18
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Cool I'll have to look into the Haltechs, I dont really know much about aftermarket ECU's.
Im getting them done at my local exhaust shop called JAGT exhaust systems. He quoted me about $350 for just the pipes not including heat proof coating. He did the custom 3" exhaust work on the Cressy and I also seen his work on a 1JZ Celica-Supra that was in his workshop once, he made up complete new manifolds for it, does very nice work.
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