My 2JZ swap Update

[drunk_medic]

Just thought I would put a little show-off/update on my so-called "progress" with the 2JZ swap. It's not real progress, since all I am doing right now is thinking about what I want and gathering the parts that I need for the swap, and parts for the car in general [which is semi-thrashed]. This is all cleaned up and re-posted from I-Supra.

Here's my little workbench with some critical parts:

So, there's a wiring harness, greddy boost cut controller, voltmeter, tach from a 1JZ [7k rpm redline], steering wheel spacer and quick-disconnect, 1JZ flywheel, US spec OBDI 2JZ-GTE 6-speed ECU, US spec 2JZ-GTE cams, and US 550cc injectors in the fuel rail.

Synthetic black, almost identical to Sparco Torino seats.. without any obnoxious brand logo or marking [I HATE almost all brand name markings on items!] 4-point racing harness with some TRD pads. Decent looking, functional, but not over-the-top.

Infamous 2JZ high pressure power steering line needed for 1JZ/2JZ swap in MA70 body:

8 flywheel bolts. These will secure the 1JZ flywheel to the 2JZ crank.

This is the Greddy shift knob. Simple, classy, solid and threaded. No more loose, tacky shifter!

This, minus the packing label and tape, is what you see when you change your oil. IF you do your own. No? Wuss..

Here is the other side, the inside of the lower oil pan. On the left, you can see where the oil drain plug screws in.

This is an el-cheapo oil cooler that I bought. It is rather large and thick compared to the stock unit. This is for retrofit, HOWEVER I may just buy a Greddy 16-row remote+relocation kit before the swap and hock this one later on.

 

[drunk_medic]

Bottom view of the oil pickup. This extends down to the oil pan for lubrication of the engine. VERY important part for how cheap it is!

Another view of the pickup tube/strainer.

This is the oil pan baffle. I don't know the EXACT purpose of this, but my best guess is to help guide the strainer, avoid so much splash/sloshing in the oil pan, and helping to keep the contaminants in the lower oil pan instead of letting them get up to the crank and bearing area.

Here is the muffler I intend to use, IF I don't decide to get a HKS Ti or BoostLogic and have it modified to fit.

The inlet is 3.5", which is quite nice for flow.

Outlet - big enough to fist. I hope this doesn't sound too loud.

Throttle cable. This is needed for the 1JZ swap. I heard that the 7M throttle cable can be use with a 2JZ, but I bought this in case my throttle cable is worn. Better safe than sorry!

Here is the upper oil pan, bottom view. You can see where the lower oil pan bolts on. This is a must if you plan to buy a Toyota Aristo for your 2JZ needs; the Aristo oil pan is mid-sump - a different configuration, and it WILL NOT fit in your rear-sump Supra.

Upper oil pan, top view. This is what bolts to the underside of the 2JZ block.

Momo 4-spoke wheel and hub, from JZA70 Supra.

 

[Idealsupra]

nice collection of parts....i think my house is gonna start looking like that when i begin to gater parts for the project im planning on doing.

 

[Ckanderson]

holy fuck son! that must have cost a SHIT load of money!

 

[drunk_medic]

holy fuck son! that must have cost a SHIT load of money!

Not as much as the rest of the swap is going to cost. Then again, shouldn't be too bad after I get out of debt. There are MANY more parts that I am going to need, and this doesn't even count the upgrades that I want down the road - namely, an AEM EMS, wideband o2, and 720cc squirters with a SP63. I may even go so far as to go getrag with a TRD LSD. 1st and 2nd gear will suck, but from a decent roll it should own.

My goal is to have the 2JZ swap done a year from now.

 

[Jetfixr757]

Dude, just get a MK4 and be done. I don't like migranes that is why i got a MK3, i was going to do a MK2 with a 7mgte and then i started writing it all down and i got fed up and found a MK3 turbo.
Willam 89T

 

[drunk_medic]

Dude, just get a MK4 and be done. I don't like migranes that is why i got a MK3, i was going to do a MK2 with a 7mgte and then i started writing it all down and i got fed up and found a MK3 turbo.
Willam 89T

Just because you lack the resources and patience doesn't mean I am going to quit this swap. I love the 2JZ engine, and I love the A70 body. I also want something unique, but do-able. I am not a great fan of the Mk4 body style. Even if I was, I have enough money, time and research into this and couldn't turn back now if I wanted. I love the way my MkIII looks and feels. I'm not a kid OR some average ricer who has wet dreams of owning a JZA80 Supra and settled for a MkIII. Buying a Mk4 would have been settling for me. I've been moderating at I-Supra for over two years now and I seem to have plenty of support from the MkIII AND Mkiv guys over there. In fact, I believe you are the only person who I've ever heard discourage a 2JZ swap to someone who is capable of accomplishing it. I have done the research, I have the skills, the means, the tools, and I have the patience to get this done. I don't mean to sound like a d!ck, but please don't confuse my motivation with your lack of any of these.

 

[psifactor]

You have an awesome collection of parts going on. some of the things you have you really do not need to do the swap. Like the power steering line. I just had a custom one made that looks better, takes up less room and cost less. I got away with just using the stock 1j throttle cable but looks like you are just piecing together stuff for your swap.

You can get the ARP flywheel bolts from a 4age..i think theyare around 20-28 bucks, but i'm sure the stockers will do just fine. how much were the oem ones?

everything is just so clean and nice. do you have some pictures of the donor car? Projected finish date?

btw, you should let me test out your steering wheel to make sure it will work

 

[Dirgle]

I'd love to do the 2JZ swap just for the challenge of doing it. Not because it's different, but because it's difficult. I love the 2JZ design, and firmly believe it was put in to the wrong body. MKIV is just an over grown jelly bean. The MKIII just has a look that is serious, sharp, and clean. And with the 2JZ engine, it would be the ideal combo of past and present. Props to you for taking the time to do it right.

 

[psifactor]

the 2j is great and all but it still does not seem to compare with how smooth the 1j rides. I'm thinking about putting a 2j bottom end with my 1j head but i have a feeling i'll be dissapointed with how it feels.

 

[drunk_medic]

I got away with just using the stock 1j throttle cable but looks like you are just piecing together stuff for your swap.

You can get the ARP flywheel bolts from a 4age..i think theyare around 20-28 bucks, but i'm sure the stockers will do just fine. how much were the oem ones?

do you have some pictures of the donor car? Projected finish date?

Here are a few more pictures.

Here is the car that will undergo the engine swap:

Low shot:

Out with the old:

Crooked intercooler - needs straightened:

Sun shining to show off the pearl:

Hood popped, not raised:

Inside, needs a little work:

Full loom:

US Spec Twins [converted to TTC]:

 

[1jzMoe]

hey man when you get done with your swap can u post it im am currently deployed and i am planning on swapping in a 2jz in my mk3 when i get back to the states and ill have alot of time and money to do it properly so anyhelp would be appreciated thank you

 

[bobiseverywhere]

If you can put together a total running cost as well. I would be interested in seeing how much to do everything. I want to see if it is worth it to. Stop my moddifing now and just save for a swap. I love the MKIII But would love to have a 2JZ-GTE Powerplant in the car as a starting point. Maybe you can put it in a Excel spread sheet and just update it when you get some parts.

I alwasy here everyone just shooting out numbers about how much it should cost. Since you are doing it i would like to see exactly how much it will cost and for what parts are really needed to get it done right.

I have only seen 1 MKIII where they were able to fit the stock 2JZ twins in i am not sure if they had to cut the firewall or do other extremes but i have only seen one. Other then that i keep hearing people say it can't be done and that you need to switch to a single. Thus rising the cost of doing the swap signifigantly

 

[esc]

Now does the 2JZ throttle cable work on a 1JZ?

Got a couple extra hundred bucks I can borrow? lol. Lookin good so far. Hope it all comes together nicely.

 

[drunk_medic]

I would be more than happy to help anyone trying to do this swap. Please remember that I am going off guidance from others, and when my swap is complete, I can only comment on my experiences, pitfalls, expenses and problems.
I WILL be doing a part cost tally when I am done, and I will document this swap EXTENSIVELY. The most documented 2JZ->MA70 swap around is by Arnout [supras.nl], and I want my swap to have about the same amount of documentation, but probably 2x the pictures.

As for the 2JZ cable working on the 1JZ - I cannot confirm this, but yes, it is supposed to work. Rick [1jz-gte.us] used a 2JZ cable for a 1JZ swap. The extra length of a USDM 2JZ cable compensates for the shortness of a RHD 1JZ throttle cable going into a LHD vehicle.

For the twins in the A70 engine bay, this can be done; some people have done it without any modifications; others have use a couple firm strikes with a small sledge on a certain parts of the firewall. Eventually I will get a single turbo, but that will be done in time. I want to get used to BPU power levels without killing myself before I go for the AEM, single turbo and that 500-700hp goal.

A deployed guy needing help? No problem, so long as I'm not deployed as well. Just so you guys aren't disappointed, military pay is good, but it isn't great for a project like this, so don't expect it to happen overnight. I don't plan to be done with this for a year, but I promise that it will be properly documented.

Now: Why? Why trade a 3.0 I6 for a 3.0 I6? Simple: better efficiency and survivability of the new engine, availability of parts from Toyota, availability and ease of 2JZ mods, the unique factor, and something to keep me occupied and motivated.
Why buy a J-Spec engine when you are just converting it to US spec?: The US spec is a better performer out of the box, and can yield more power on the stock twins and injectors. Peak and hold [low impedance] injectors are higher quality, and the cams are more aggressive; so why not just buy a US spec TT engine? They are more expensive, more likely to be beaten on, and with an Aristo front clip from Jarco, I will be getting EVERYTHING from that car. No half-assed clips missing pipes or with cut wires. An Aristo is also a sedan, and less likely to have been modified and beaten up or mistreated.

All of this will be covered when I throw up a webpage, but that's not going to happen for some time. If I DO have a page up in the near future, it will not have the amount of substance that I want.

For some people, keeping the 7M is a wise choice. I've just had a bit of bad luck with mine and I know that the grass is green on the other side of the moountain.

 

[1jzMoe]

to comment on drunken medic yes military pay is good and not great for a project like that but when your deployed with no bills or anything to pay off(oh and take full advanage of the soldiers and sailors act) ill have more than enough money have enough money now and im also a sargent in the US Army. but i have been through 2 different 7m engines and figured id try the project been lookng it up for a while and never got to it but i plan on buying everything new. New engine and everypart i use will be new so that i dont have to worry about if it was beaten on

 

[spipedong]

Who made those seats if you don't mind me asking?

Oh yeah, KDC-X915 deck? I've got the same one.

 

[drunk_medic]

I think the seats are LiteGlow. Synthetic black leather. They only cost about $350 shipped for both. Not bad for Sparco Torino knock-offs? They are wider than the stock seats though, and I am going to have to make custom brackets to mount them. Unfortunate; I had hoped they would just need a couple of holes drilled.

Yes, I've had that Kenwood 915 deck for 5 years now. It's served me well, but I think that after the 2JZ swap, I will put a little money into ICE. Nothing over-the-top, but I wanted to at least put a dash display setup for an AEM on a little LCD monitor above my steering wheel, and my sound system is aging. I can have a quick-view of all critical engine parameters.
I also plan to make a tray for a laptop of some sort, which can slide in and out of the glove compartment. That will be something that I will work on, since I have a spare glove compartment to work with and I am used to working with slide-lock trays. I just need a way to make it slide in far enough where the laptop can slide ALL the way in and can be closed up.

 

[streetknight]

looks good seems liie a hard road, ahead but looks fun.

 

[Johnny Dangerously]

Lookin great Drunk Medic! its been a while since ive said anything to ya, but im glad youre incredibly patient with your car/goals. Only nothing but great things to come for you, my friend.