1jz how hard is it???

rumptis

나는 제프가 당신을 사랑
Aug 16, 2005
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North Vernon, IN
Evilempire1.3JZ-GTE said:
save yourself the hassel of extending the harness just enlarge your speedo hole and put the wires through there then bolt ecu factory location

Will everything reach this way? I have read that part of the harness will reach this but otheres parts of it will not?
 

Evilempire1.3JZ-GTE

SF what a waste of supras
Jun 22, 2006
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nope 100% reachage!!!

the reason it doesnt reach and you have to add 2 feet or so going the other way is because you go through some thick climate control boxes you cant squish the ecu in there so you have to extend the harness

or just go through the speedo hole directly to where your ecu mounts routing the wires behind the dash bracket up your ecu call it a day.

how much to route out the speedo hole?

there is 2 layers of sheet metal at the speedo hole one is large and towards the inside of your car that is fine and a good template for the outside layer its maybe only routed out with a rotozip in less then 5 min. and only shaves 1/4-1/2 an inch.
 

Erkenz

New Member
Apr 25, 2006
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Michigan
Evilempire is right. The harness will reach. It just wont look stock. But who cares, I'd rather do it this way then try and extend it myself and probably have some problems later on down the road.

Personally, I was a chicken and had someone professionally extend it for me (for some ca$h)
 

86_sports_1jz

slow 700hp build...
Aug 27, 2006
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OK
i'm in a bit or trouble 2 and i'm not sure if i want 2 extend the wires myself. Who did u have extend your wires?
 

xarewhyayen

276 whp - 324 tq @ 13psi
Oct 3, 2005
959
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39
Philly
a well done and well informed swap depends on if you know how to use the search function on supramania or not.
 

Evilempire1.3JZ-GTE

SF what a waste of supras
Jun 22, 2006
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if you pay someone to do this make sure they can and will do mill spec shield jumpers to avoid noise (emi) getting into your injector / knock sensor / cam positon sensor / ignitor.

mill spec enviromental wire splices that use a sarget barrel crimper with a sealable outer plastic coating and they are really thin and try to stager them because if you put 100% of all the splices 1-200+ in the same 1" of the harness next to each other then if one or more come off they might touch and blow up your ecu or blow your engine up. also it will look like ass if they bulge your harness all in one spot when you wrap it with tape it will look like a snake swallowing an egg.

also the next best thing to splices but much thinner just solder the wires together with heatshrink coating but the engine bay might degrade heat shrink insulation faster then the hard plastic shrink on onviromental splices.

it will take 2-300 red mostly with blue splices, 1-200 wires X 2ft about 300ft of wire and you will have to pay someone out the ass to do this

or do what i do pay no one put it in less then a day and dont extend the harness and not have to run your wires over the top of those hot turbos.

here you go. pics.
 
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inline6

Whistle>Whine
Sep 22, 2005
208
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SoCal
I think it was actually something like 87 wires for the engine harness to extend. x2 for soldering points. Plus a jumper harness for the body if you choose to do so.
 

rakkasan

Currahee!!
Mar 31, 2005
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Fort Campbell, KY
Russian70 said:
hi i am from russ and now we instal 1jz-gte to left-hand supra targa86? had some trouble with engine pillow


Sorry to ask, but does engine pillow mean engine mount? If so, you'll need to either find a 90 or later cross member or buy engine mounts from bicperformance.com
 

rumptis

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Aug 16, 2005
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North Vernon, IN
rakkasan said:
Sorry to ask, but does engine pillow mean engine mount? If so, you'll need to either find a 90 or later cross member or buy engine mounts from bicperformance.com

Isn't that 89+ and not 90+?
 

bigaaron

Supramania Contributor
Apr 12, 2005
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Pomona, CA
www.driftmotion.com
Joe got the BAC mounts (Because Aaron Can). I cut a wedge out of the back sides of the bracket on the crossmember, hammer it down to the correct angle, and weld it on both sides. Then I enlarge the slot a little for the motor mount stud, and elongate the hole underneath so the socket will fit on the lower nut. I have done it on about 5 cars now with great success. I do it now on all our 1jz swaps with a early crossmember. I have it down to about an hour now.