Jon's 1989 1JZ single turbo restoration and build: Stellllllaaaaa!"

mobes

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#1
Hey everyone!

I've had my Supra 'Stella' for about 3 years now. 2 years ago I swapped in a 1JZ. It had smoky twins so I put it in storage and it's just been sitting due to lack of time and a place to work on it (college student). Now, after waiting for about a year and a half, I finally get the chance to do my single turbo conversion. Here's what I've done so far (20% done or so):

  • Pull stock twins (done, what a pain!)
  • Test fit/clearance single manifold (done)
  • Pull motor/trans (done)
  • Build custom injector resistor pack (done)
  • Swap ECU plugs on engine harness to 2JZ plugs for AEM (done)
  • Strip and paint block with POR-15 (in progress, between coats right now)

Other mods will be divulged as they happen so stay tuned cus it's a long list :D

Here's a few snapshots:

Twins out (what a pain! 4 hours of constant knuckle busting):


Manifold "clearanced":


Test fit:


Resistor pack and harness:


2JZ ECU plugs:


Prepping block for paint:


<strong bad>POR-15'd!!!</strong bad>:


Back to work I go!
 
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suprahero

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#2
Re: Jon's "It's about damn time!" 1JZ single build

Did you click on the yellow looking envelope and then post the links?
 

boostadikt

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#3
Re: Jon's "It's about damn time!" 1JZ single build

looking good..... are you building the motor? otherwise why did you take it out to go single?
 

MA70Supra88

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#4
Re: Jon's "It's about damn time!" 1JZ single build

Looks like those pictures are displayed dynamically through PHP so they won't show up in the post.
tags aren't going to work.

Progress is looking good so far! :bigthumb:
 

mobes

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#5
Re: Jon's "It's about damn time!" 1JZ single build

Pics fixed. I guess VBulletin doesn't like my gallery so I put the pics in a folder on my site instead of just using the gallery images.

I pulled the motor to replace some seals, clean it up, and paint it.
 

boostadikt

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#6
Re: Jon's "It's about damn time!" 1JZ single build

what was the clearance issue with the mani? in the 3rd pic it looks like the a/c line.... or is it the actual body?
 

mobes

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#7
Re: Jon's "It's about damn time!" 1JZ single build

It's the actual body. Mine interfered by about 1/8". I've heard of some that were bad enough that they couldn't be used.
 

mobes

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#8
Re: Jon's "It's about damn time!" 1JZ single build

Some progress updates:

I added a flex section and V-band flange to the SSAC downpipe (not bad for my second time on the TIG I think):


The motor is in, intake, TB, and water neck polished, FPR mounted and plumbed:




I still have to polish the compressor cover and PS reservoir, run some vacuum lines, mount and plumb the IC, make a bracket for the catch can, etc etc... but it's coming along nicely. I really wish I had more time to devote to this project as it's been quite enjoyable but slow moving.
 
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mobes

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#10
Re: Jon's "It's about damn time!" 1JZ single build

Bozeman. I always welcome Supra fans but I think that it'd be quite a bit out of your way. Montana isn't exactly a small state :)
 

Ric

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#11
Re: Jon's "It's about damn time!" 1JZ single build

boostadikt said:
looking good..... are you building the motor? otherwise why did you take it out to go single?
I took mine out to paint the block and engine bay, looks like he did the same :icon_bigg
Also alot easier to install things like resistor pack, harness mods, etc.


Next time, take the engine out BEFORE you remove the twins, it's only about a 30min process when the motor is out.
 

WhtMa71

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#12
Re: Jon's "It's about damn time!" 1JZ single build

Cool project.I wish i had the funds to do a 1jz swap(also a college student). Oh and i flew into bozeman 2 years ago when i took a ski trip to Big Sky..best skiing ive ever had. :thumbup:
 

mobes

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#13
Re: Jon's "It's about damn time!" 1JZ single build

AEM EMS is in:



I got the intercooler pipes and bracketry mocked up today. Hopefully I can get them welded this week. I also started polishing the compressor cover.
 
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mobes

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#15
Re: Jon's "It's about damn time!" 1JZ single build

I finished the intercooler and intake pipes, and the intercooler and catch can installed today. I snapped a few pics during the process:



The IC pipes are made from 90 degree J-bends from an eBay kit. I think they turned out pretty swell. I mocked them up and had a friend TIG weld them, then I ground the welds flat, rolled beads on the ends with a modified Harbor Freight ring roller, and polished them. The intake pipe is a custom 4" bend with a -10 AN bung welded to it for the catch can.



The intercooler is your usual 24x12x3" generic. The tags on the intercooler mount it securely using the stock IC mounting points. They look small, but between those and some aluminum straps on the bottom, it's very solid.







That's about it for now. I'm moving to Texas on Monday so it will be on hold for a while. Hopefully it won't be long before I can find a place with a nice garage.

To do:
  • Weld dump tube and mount to wastegate
  • Try to get AEM to do something about my wideband gauge that melted in the sun :icon_evil
  • Finish wiring my gauges
  • Tune the AEM
  • Move on to suspension, brakes, paint, interior etc
 
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mobes

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#17
Re: Jon's "It's about damn time!" 1JZ single build

Supra28 said:
That is one good looking motor
Thank you sir. I put a lot of elbow grease into it. I just hope it has the power to back up the bling.
 
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Bigzavs

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#19
Re: Jon's "It's about damn time!" 1JZ single build

to reverse the above post, another 1JZ in texas

where in texas are you moving? im in the DFW area
 

mobes

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#20
Re: Jon's "It's about damn time!" 1JZ single build

To Austin to start, but possibly Fort Worth area after a couple months.
 

Bigzavs

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#21
Re: Jon's "It's about damn time!" 1JZ single build

awesome man, if you head up here get in touch with the loal supra guys

and the setup looks great, dunno if youve already said it, but what kinda power goals are you lookin for?
 

mobes

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#22
Re: Jon's "It's about damn time!" 1JZ single build

Shooting for 500, will be happy with whatever as long as it's over 400 though

Really with the GT3040R though I'm looking for a nice wide powerband moreso than peak power.
 

mobes

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#23
Re: Jon's "It's about damn time!" 1JZ single build

Well it's time to bring this thread back from the dead.

I finally have my own place with a garage now. So that's a plus. But in having my own place, I also have to spend time on house stuff. Boo!!

I thought I'd try to get the Supra running about a month ago. Filled 'er up with coolant. The water neck started spewing coolant. The gasket was in crooked so that was an easy fix. Filled it up again, so far so good. A few minutes later I notice a wet spot on the block. The bypass pipe that wraps around the motor and feeds the heater core and oil cooler was leaking. I had welded the feed for the rear turbo shut (only need one with the single), and in doing so I had opened up a leak in the brazing at a nearby joint. ARRGH!!

So I was weighing my options. The pipe is U-shaped and wraps around the motor, and there's no way to remove it with the motor in the car. I tried tipping the transmission down enough to slide it back into the tunnel, and there's just no room. I figured I might use a GE pipe instead, because it doesn't wrap around to the oil cooler, and I have a Greddy oil cooler and filter relocation kit I had been meaning to install that could replace the factory oil/water cooler.

So it was time to get the leaky pipe off the car. I finally got a chance to use the 18V reciprocating saw in the kit that I got for Christmas. :evil2: Needless to say it's off now. :evil2:

I borrowed a GE pipe from Josh (dok33) to test fit. It fits in place but hits the block. I think if I bend it a little it will work, but I need to get my own pipe before I try that. So I've got one on order. Waiting for that...

I decided since I've got the wiring harness out (in order to remove the manifold), it would be a good time to properly wire in my gauges. Which brings me to the next thing:















Thanks AEM for making a gauge that can't old up to 2 weeks in the sun. Boo!
 
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rs4rush

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#25
Re: Jon's "It's about damn time!" 1JZ single build

Where'd you get the little gauge pod from?

I have been looking for somthing like that for quite some time:love:! Where did you get that??? I saw one on ebay but I'm not sure if I trust it.

~Cory
 

mobes

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#26
Re: Jon's "It's about damn time!" 1JZ single build

It's an Autometer pod. I bought it from their outlet on eBay IIRC. It was water transfer printed in a carbon pattern (yuck) so I painted over it. The carbon one was like $10 vs $30 for the black one so I bought the carbon one and painted it black :)

Edit: by the way the other 2 gauges are ProSport and the pod came empty.
 

dok33

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#29
Re: Jon's "It's about damn time!" 1JZ single build

Horay for progress! Looks like you need a prosport A/F gauge in that pod :)
 

mobes

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#30
Re: Jon's "It's about damn time!" 1JZ single build

Horay for progress! Looks like you need a prosport A/F gauge in that pod :)
Yes, progress is a good thing, even if it is slow :)

Yeah it's too bad that they still haven't released their wideband. I like the AEM because it also has an output to hook to the EMS. I just noticed the new version of the ProSport A/F gauge can now display wideband data, it just doesn't have a controller. So I might look into getting a controller or just using the AEM gauge as one if it still works and use the ProSport display.
 

dok33

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#31
Re: Jon's "It's about damn time!" 1JZ single build

I'm with you on the slow progress... I didn't realize the AEM had a controller in it too, that kind of complicates things.
 

WhtMa71

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#32
Re: Jon's "It's about damn time!" 1JZ single build

Thats crazy about the AEM gauge..Whatd AEM have to say about that?
 

mobes

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#33
Re: Jon's "It's about damn time!" 1JZ single build

Thats crazy about the AEM gauge..Whatd AEM have to say about that?
I didn't even bother with the warranty... it's only got a 1 year warranty and I bought it longer than that ago. I dremeled the plastic out of the way and hooked it up and it still works.
 

mobes

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#34
Re: Jon's "It's about damn time!" 1JZ single build

The story of the Supra:



FYI the 7M-GE oil filter stud does not fit the 1JZ. Now I'm looking for a standard 3/4"x16 stud.

I wired in some Deutsch connectors for the gauge sensors, and added the wiring for them into the main harness. I also moved the pigtail for the narrowband oxygen sensor from the very end of the harness to the very beginning, so it will now plug in to the harness near the ABS pump instead of near the water pump. This is much closer to the location of the sensor with the single turbo installed.

I rerouted the A/C clutch wire into the engine harness using the provision in the EA2 plug.

I've also got another Deutsch connector coming that is going to go inline with the reverse light switch wiring, since the factory connector location is damn near impossible to reach with the trans in place. It will go near the starter so that if I want to remove the harness from the motor again I can disconnect it instead of overlooking it and snapping the wires (oops :icon_redf).

All of the gauges are being wired through the IG1 plug and dash harness so I won't have any loose wires to deal with.
 

dok33

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#35
Re: Jon's "It's about damn time!" 1JZ single build

Lol, nice. Lemme know if you need any help this weekend, although you probably don't want my ghettofab methods used on your car :)

I'm parting the Escort right now but hopefully I'll get time to get the 2J ready to drop in before Saturday if you're free ;)
 

mobes

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#36
Re: Jon's "It's about damn time!" 1JZ single build

Parting the Escort? :nono:

I should be free on Saturday. Got some yard work to do but I'm going to try to get to it before then.
 

dok33

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#37
Re: Jon's "It's about damn time!" 1JZ single build

Yup, we bought an '06 Escape last weekend and I'm going to keep her '96 Escort for making the 800mi round trip to visit her on weekends. No one would pay what I wanted for the wagon whole so I'm putting it back to stock and selling it.

Thus far I've resisted the temptation to turbo the '96, having to work on the wagon constantly has helped that. Don't want to cut into any more Supra time :) Plus me and a couple of guys from work are building an Escort for the Grassroots Motorsports $2008 challenge :D
 

mobes

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#38
Re: Jon's "It's about damn time!" 1JZ single build

New gauges in the cluster, plus red needles for the factory ones:



The Prosports are white backlit and the factory gauges will be changed to match.

Also got a GA70 9K tach:



I'm thinking I'll switch out the turbo LED with a red one, hook it to the AEM and use it as a shift light :)

Last night I got the dash pulled out and the harness pulled off of it, so now my next task is to add the new gauge wires to the dash harness.
 
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Tire Shredder

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#39
Re: Jon's "It's about damn time!" 1JZ single build

how did the POR-15 paint work out for the block? I've used it before to fix other problems like hatch rust. I want to purchase the engine painting kit from them.
 

mobes

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#40
Re: Jon's "It's about damn time!" 1JZ single build

how did the POR-15 paint work out for the block? I've used it before to fix other problems like hatch rust. I want to purchase the engine painting kit from them.
I'm very happy with it so far. Time will be the true test but I'm confident in this stuff. I got the engine painting kit and probably have enough left for 3 more motors. I love the look it gives too, 100x better than the bare block.