Need Help...2JZ swap

[truth211]

Ok I have decided to do a 2JZ-GTE twin turbo set up. I could not find anything on the search engine so I am hoping someone here has.

If anyone knows how to do this swap please let me know how. If you know where I could go to get the information to do the swap please tell me. Parts, prices, do's and dont's, what to look out for, wiring, extra info etc. Things like that.

If you are going to pop your 2 cents in on "Duhh dude? why that swap and not an rb swap or sr20 etc" Then stay off. I do not want this topic full of stupid people voicing their stupid opinions on why I am doing this swap and how they feel something else might be a better swap. All that is important is it's what I want to do and hopefully this topic will help someone else who is looking to do the same swap. So please keep this topic ON topic and only information on doing a 2jz-gte twin turbo swap into a 1991 300zx. Thank you.

[evildky]

I have no problem with the 2JZ just can't fathom why in the Z32, the S30 is a much ligher recipient

as for what to so, buy the engine and start cutting and welding till it's in, I've never heard of a 2JZ in a Z32, I guell it'll fit as the RB's have been done, but you'll just have to fab up your own mounts and have a shaft made, and as for wiring I'd just go stand alone and save a lot of drama unless the stock toyota system lends itself to swapping, the S30's that I knwo od all used stand alone's

and I am amazed at how small and strong the toyota trans is, way smaller than the units found in Z's yet they stand up to high HP quite well

[Chrispy300]

I've seen a couple done, but massive job. Have you bought the engine yet?

Which gearbox are you looking at? Z32 auto/manual or supra auto/manual? I'd be going the Supra 'box as using the Z32 one could turn into a real PITA.

The 2J is quite a long motor so you may need to run a V-mount rad setup or like my mate with a RB26 Z32 used a cutdown 42mm rad and mounted it underneath the rad support then had a swirl pot with rad cap up higher.

I'm doing the VH45 conversion myself, but am a big fan of any different motor into the Z.

Check out HybridZ, they might have some more info.

[fairladyz1990]

Just go to http://www.2jzswap.com/vbulletin/

They even have kits for cars, like 240's RX-7's, comes with custom fabbed crossmembers for basically everthing to just bassically bolt in...

[truth211]

I am about to pull my car into the garage in the next day or two. I am about to purchase a 2jz-gte twin turbo (maybe I will go with a single turbo...not sure yet). I have come across a decision though. I was going to buy a low mileage engine for about $1400 but I found a few Supra engines that made me think. One is a GETRAG and the other is a MKIII. What is the difference in all these Supra engines> There is a significant price difference-$5500 to $6500 for engine. Why the jump? Any info you guys can give would be great.

[nghtrain88]

did Nico turn into a Toyota forum?

[Chrispy300]

Don't think that they made a 2J for the Mk3 Supra, only the Mk4's. The Getrag will be the six speed one, not cheap at all.

You could go an import a JDM one from an Aristo, ceramic wheel turbo's and auto only though...

You might want to have your thread moved to Hybrids as our friend above doesn't appear to like things that are a little different

Check out the Supra forums for more info on the engines.

[truth211]

did Nico turn into a Toyota forum?

Nope but obviously you can't read. Stay on point. If you don't have any input in doing this mod then keep your two cents out. This topic can help other out as well as me. Keep your comments to yourself and keep the information on the swap at point.Many people want to do this mod and I want to get some information on this.

Now back on point. Anyone have any idea's about my question above this one about the Supra engines?

I know I am going to have to modify the driveshaft. I am having the local shop cut the driveshafts and join them together and then balance them. They will be using the transmission side from the Supra and the end that goes to the rear end from the 300zx TT. They are tough rears so I want to stick with them. I am trying to find a place that makes the engine mounts for this. If not then I will have to fabricate one. I will be using solid engine mounts to ensure the engine will go nowhere...and yes I know it will be vibratious. I will have to trim out some of the firewall to accomodate the extra long engine. However this will be good. It will slide the engine back a bit and give me a little more room in the front. The engine will have to be slid a little toward the passenger side to clear the steering shaft but will work just fine. The crossmember will have to be modified to lower the engine a little more or it will make closing the hood impossible. REMOVE THE HICAS SYSTEM! Garbage in my opinion. However there are plenty of blogs on this in the nico search engine. I have found out that I will have to modify the transmission mount but there might be a possibility on using the 300zx TT transmission. Not sure of that one. Any idea's? The engine is pretty heavy but from what I am told I will actually be saving some weight so the suspension will be fine. Now the transmission firewall will have to be modified to fit the much larger 2jzgte transmission. Due to lack of space I will be using 2 procomp's ultra thin 2600cfm electric fans. I will be using a low profile radiator/Koyo and mounting it about 2 1/2" back from where the stock on is. The oil cooler will need to be relocated and since I am converting to a 5 speed I can just do away with the transmission cooler. Now depending on how far back I move the engine will depend on if I have to cut some of the shifter hole to fit the new transmission into. Some information on this would be great.One of the biggest things I need to know is the wiring. If there is anyone who has actually done this swap let me know. I need to know what to look out for and what to do EXACTLY. Thanks

[aidanair]

Holy crap, its finally my time to shine baby!!!

Haha, I happen to know more than common knowledge about supras.. Used to own one, my dad did too.

OK heres the basic layout my friend.

1986.5-1992 was the MKIII. In the US, they had the 3.0 Liter 7M-GE Engine, or from 1987-1992, you could spend a little more and get the turbocharged version putting out 30 more horses. In Japan, the engine used was a 2.5 Liter 1JZ-GTTE, a twin turbo but smaller displacement engine.

In 1993, Toyota introduced the 2JZ Platform in the MKIV supra. The NA model put out 220 horse power while the TT version boasted 320.

Basically, if your planning a swap, here's what you want.

Get a 2JZ-G(TT)E. If your looking for BIG power, then get a single turbo setup. As I'm sure everybody knows, supras make HUGE power on big single turbo setups, and if built properly, don't suffer enormous lag. If looking for a streetable fast car, going BPU with the stock twins will suffice.

Lastly, if your on a tight budget, you can buy a 1JZ-GTTE and swap the bottom end out with a 2JZ, forming what is known as a 1.5 JZ. It bolts right in. Using a 2JZ bottom end with the 1JZ components allows an extra 500cc of displacement, and the 1JZ's head flows much better then the 2JZ's.. Its a very common upgrade in the MKIII world.

For more help, allow me to redirect you to my former forum.

http://www.supramania.com

Any other questions feel free to ask.

[Chrispy300]

In Japan, the engine used was a 2.5 Liter 1JZ-GTTE, a twin turbo but smaller displacement engine.

I thought it was the 1GGTE? Twin turbo 2L six.

The 1J was in the '89 soarers... Could be wrong, haven't mucked around with Toyota's in years.

[evildky]

gonna move this to the hybrid sections where it belongs

[aidanair]

Actually, your right and wrong. The 1G was used on the earliest Japan models, and was replaced in 1990 with the 1JZ. Nobody will swap a 1G motor because they don't have much potential, there weak (200 BHP) and the 1JZ (280 horse) can be had for the same price if not cheaper. Therefore I didn't feel the need to bring it up. But good catch!

[truth211]

Well that helps out alot. So I have decided to go with the 2JZ-GTE single turbo engine. Thank you for the info about the engines. I really do not know that much about these engines. This is actually a new venture and I am looking forward to the challenge. But I really would like to get as much i nformation as possible. I wish there was someone who has actually done the swap that could give me some pointers.

[aidanair]

Yea its definately a rare swap.. Search around though I bet it has been done. But as far as your choice of engine...

Pair some HKS Cams and a stroker up with that setup along with some supporting mods.. You'l break 1000HP in no time

[truth211]

Yeoooch. What a tight fit. I finally got the engine in and everything else done. Even dropping the engine an extra 2.35" it still sits very high. I went a different route though. I modified the actual support frame and relocated my rack and pinion. I reversed the rack and made some custom suspension pieces to accomodate the modified crossmember. However I had to find a rear sump 2jzgtte. I welded new supports to the crossmember and made new motor mounts. I used solid motor mounts to hold the engine in. Car vibrates alot but not a big deal when you consider I needed ever bit of support for the additional torque a turbocharged inline-6 produces. The biggest issue was the wiring. I had to join the new 2jz harness in with the 300zx harness. I litterally had to trace each wire and look on the schematics to find out which wires needed to be spliced into and others I could just leave hang. WHAT A PAIN IN THE BUTT CIRCLE.. Nex I had to send the driveshafts out to be made. Unfortunately my first marks were off. I forgot to compensate for the inner shaft length. I needed to subtract 3.145 for mine to work. Second time around....fit nicely with one flaw...they never balanced the shaft. So needless to say it shook the yolks loose. Finally got all that crap fixed. Next hardest part was the actually getting the engine in the car. I actually decided to do it al little different then the other guys did. I shifted the engine back an additional 3.5". This set the transmission shifter directly in the middle of the stock hole. However it makes it very difficult to remove the plug cover and remove the plugs when needing a change. Overall I am very happy. This car is a torque beast and was well worth the hassle. i will have some pictures up soon. I am going to finish the car's fiberglassing speaker box and ect. before I do. I want you to see the final product. I will do a write up of how I did all this complete with pictures. I will also probably make a video of this and sell it on here and eBay but that will be in the future.

[RCA]

I could not find anything on the search engine so I am hoping someone here has.

REALLY??

There is a thread like 5 threads under yours called "2jzgte into a 300zx swap information would be greatly obliged"

Also try to contact the only guy I know that has a 2JZ 300ZX:http://www.teaminfamous.net/fo...t2335

[truth211]

MA-Motorsports in Dundalk, MD have a few 2jzgte powered 300zx's. Their shop is amazing and they are very knowledgable. They helped me with alot of things through the project. If you would like I can give you their phone number. These guys are, in my opinion the most knowledgable people I have met. They really know what they are doing. They are genius's when it comes to wiring of which they helped me with. If you call them ask for a guy named RAY. He'll do you right. Also their website is on the web. You can look them up that way too. I also forgot to tell you they also have a few RB26dett powered 300zx's. I love these guys.

[RCA]

Truth211 post some links of this 2JZ 300zx swappers in MD.Or some phone numbers...

[truth211]

410-633-1571. Thats MA-Motorsports.com. Talk to Ray. I just found out today that they also modify the 300zx crossmember and make a perfect motor mount set for the 2JZ swap. I wish I'd have known that before I did my own work. It's more of a pain then you think. Pay these guys to do it for you. It's one of the things that is well worth the money to spend. These guys have done a wonderful job on all the other 2JZ swaps and they can definately be trusted. Awesome guys and actually care about their customers. I will contact them later next week and see if I can get some pictures from them and I will try and list my car up as well. I am almost done the speaker fiberglassing in the back.

Also if anyone wants fiberglassing and custom boxes to be made email me at [email protected] and I can make whatever you need. Whether it be a custom fiberglass molded pod to fiberglassed speakers I can do it. We can discuss prices. You can also bring it to my shop as well for me to see the set up. Thank you.

[RCA]

THANKS FOR THE INFO

People have been asking about this swap and I had no answers for them...Until now

[REDLN]

is anymore info on this swap since there are a couple more done now?