1 or 2 jz? the noobiest question.

[SlapFunkWarrior]

well scince i bought my new whitepra , i have decided to sell my celsior and go hard on the supra's. now ill be getting close to 12 k for it , so the question is ...... 1 or 2 j? i am not the most knowlegable person when it comes to engines. have never swapped or even changed one . i have worked on every other bloody part a car has to offer scince i have done most of my own repair all my life. i am only 29 have been driving scince i was 16. i have just never aquired the teardown/rebuild knowledge. i would like to attempt it myself and was wondering ...

A. which would be the best idea for the beginner. well kinda beginner( as i am not an illiterate nor stupid)

B. Which is the lesser evil? (finding parts for swap & $$$$$$$$$$$$'s)

any imput from those who have done this swap would be much apreciated.

ps
TO yotaholic.... your build thread is what has inspired me to want to do this swap into my 84 black gts. thank you.!!!!!

[Yotaholic]

well scince i bought my new whitepra , i have decided to sell my celsior and go hard on the supra's. now ill be getting close to 12 k for it , so the question is ...... 1 or 2 j? i am not the most knowlegable person when it comes to engines. have never swapped or even changed one . i have worked on every other bloody part a car has to offer scince i have done most of my own repair all my life. i am only 29 have been driving scince i was 16. i have just never aquired the teardown/rebuild knowledge. i would like to attempt it myself and was wondering ...

A. which would be the best idea for the beginner. well kinda beginner( as i am not an illiterate nor stupid)

B. Which is the lesser evil? (finding parts for swap & $$$$$$$$$$$$'s)

any imput from those who have done this swap would be much apreciated.

ps
TO yotaholic.... your build thread is what has inspired me to want to do this swap into my 84 black gts. thank you.!!!!!

Hey thats cool Thanks !!

1j or 2j or 7m ?? Sounds like you have your mind made up it won't be a 7m . Personally I think if money , time , space to work , and knowledge are limited I would say go for the 7m . It's very well documented and a much easier swap ( or so they say )
If your set on TT then consider how rare the 1J is over here and how much of a gamble it is that you will buy a good one . Twins will need to be rebuilt , sometimes people get blown turbos or seized with there engine set :duh: Sometimes the wiring looks like Jack the Ripper pulled the engine . These connectors are not easy to find . Map sensor, ignitor, ecu ( capacitors leak ,,check it ) make sure you get these with your set , better yet buy a front clip that way you can hear it running before you spend any money !! I got lucky after looking at no less than 15 different 1jz/r154 sets I found one that was clean and not one connector cut !! Be careful what you buy and again a clip will save you a lot of time , money and stress . I haven't added everything up until i'm fnished but I can assure you i'm well over 10K.
2J ..well take the above comments and add at least 5K to the bill . It's a kick ass engine no question, but you need knowledge , tools, space , time and way more money.

After completing this swap and driving it for a month I can tell you that the 1J is an awesome upgrade for the MKII and will pull a grin on your face every time you hit the gas . It makes you fall in love with your Supra all over again. Good luck with whatever you decide and pm me if I can pass along any info that might help you along the way ;)

Cheers
Bruce

[DRE85PTYPE]

i am consdiering a 1jz gtte swap, it would be awesome but i had my doubts about the quality of parts i would recieve. where did you purchase your front clip if thats what you used? and and did you need to buy any sensor connector pigtails ? money is waiting to be spent : )

[SlapFunkWarrior]

thanks man. i guess its 1jz then. diddnt realize how much more a 2j is to swap over. a whole front clip is definatly the way im going to go . less headache than looking for all the parts seperatly. now im not set on TT, i dont really even want TT . i have heard that guys are removing the TT set-up and going single spool and getting better proformance out of it. what are your thoughts on that? of course it will cost more but money is just money. that there are NOT limited funds . will the 1j switch to single spool nicely? im just thinking if im gonna swap i may as well go all the way with it.

I'll keep looking for clips and see what happens to fall into place. im a big karma kinda guy so i figure what is gonna go into the supra will find me, just like the supras did. i never went looking for either of them , just happened to be at the right place at the right time

PS YOTAHOLIC how are the engine mounts you made holding up, i love how low you got that baby sitting in there?

[Deanfun]

I'd call the 1jz and the 2jz equal in terms of difficulty. The 1jz has an advantage in that front cuts or most engine/tranny deals will come with an R154 with the appropriate bellhousing. A vast majority of 2jz front cuts or engine/tranny deals will be automatics, meaning you'll have to source an R154 and the proper bellhousing.

As for parts, the 2jz will be easier to find stuff for every damn time. mkiv's, is300's, gs300's, etc.

Given the recent fall in prices for 2jz front cuts, and the difficulty in finding 1jz specific parts, and the increased torque that comes with the extra half-litre, why wouldn't you go 2jz?

[Dangerous Ken]

If you can get 12K for the celsior do it!

I'm seeing running '90-'91 LS400's here for $3-$5 that are not wrecked and wrecked cars (running front clip) around a grand in salvage auctions.

But that brings up another idea of a 1UZ in a Mk2, twin turbo, blower or both with engine mounts also available in Australia already.

Ken

[Yotaholic]

The guys make good points to consider.. Price everything required for both swaps and decide based on your budget . Don't start without knowing where your going with it and how much your going to need to finish it . As you know a lot of people have big ideas that seldom make it to the road .

DRE 85Ptype ..Bonneville automotive for the mounts..search the 1J section all the info is there.

SFW... the R154 is a drop in with the auto crossmember from a mKII , Bonneville mounts for the engine , Try a 2 step drop in with a 2J and see what happens . Ken's right deals are everywhere except NFLD so shop around who knows what you will find. As for the Twins vs single ..sure it's the thing to do but why would you add to startup costs when the twins have been known to last for years at 15psi + ? If you have the extra cash put it into your cars suspension and brakes and leave the single swap till your sure your engine is worthy ...Again IMO !!

I think Dmad ( Dave ) said his 1J budget swap cost him $3300.00 :)

[Junkie]

<<< Devils Advocate>>> :D

Disclaimer ;)

This is in no way, a slam to any particular person, engine, blah, blah, blah.Just an opinion, semi-informed, much from personal experience.

Performance Mods ....

1st and foremost, spend money on any and all suspension and brakes, and tire mods. Make the car stick to the road. I have built MKII's both directions. Make it handle and stop, before making it fast ...... PERIOD !!!! If you don't, you are not only endangering youself, but others on the road.


Engines are a tough decision. This could be a long one.

Never done any serious work on a car ... i.e. swap the stock engine. Please, do that, just for drill. You must be able to take your car apart, and reassemble it yourself, unless you have good friends, or lots of money.

Done the above, now, we can think about a "swap"

2jz --- Front cuts are available, parts are available, yes, it's an option. But, tell me ..... WHY ? Because you can ? Because you want bling effect ? Because you want something few have ? It's definately not for a lack of usable power from a less expensive/ easier to maintain swap. Add in custom work, getting the incorrectly configured front clip if a front sump clip is unavailable. IMHO this swap, in all reality, comes down to ...... Because you can.

1jz --- Similar to above, add in the added frustration of parts not in stock, at but a few places in NA. Because of the "nature" of this swap, I'd still go here, before a 2jz. This rev happy little bitch intrigues me, but again, it's a, Because I can situation.

7mgte ---Much better documented, and the Kicker ------ The WHOLE swap can be accomplished with factory parts, available in North America at EVERY dealer, and most parts available at EVERY parts store, on every streetcorner.


I'm not knocking any of them, nor actualy advocating any of them. Hell, I'd like to have all three "I'm Greedy". Just laying out the facts as I see them.

[Deanfun]

Whatever number you DO come up with... double it. To be safe, add a couple grand to THAT.

I'd be impressed to see someone get a 1jz in their car for that kind of money (the $3300), including the exhaust, brake, cooling, and suspension upgrades one should be doing at the same time to handle the power.

and FWIW, I'll agree with shawn on the 1j/2j debate... it might not make sense on paper, but something about a tiny little inline 6 screaming to high heaven just feels right.

[SlapFunkWarrior]

hhhmmmm...... alot to think about. you all have great knowledge and i apreciate the time you all take to type it all out for me.

the 1uz is an option , but i all ready have one and would rather not put it in a supra. not because it wouldnt be nice . but because the potential in the inline six that i have seen is much more documented, and the swap sounds like more than i want to involve myself with at this point in time.

Junkie... i do need to re& re the motor in the whitepra so i shall get the first in and out done when i rebuild her original heart. this should give me some of the knowledge that i am lacking in.

the 2jz is what i was thinking due to the fact that i have imported my own jdm car and now know what it takes to get them landed to my driveway and the price is great . i could buy a running aristo with 60-80 k(kilometers) for around 4-6 k. so this brings a full car un hacked(no jack the ripper pullout) for donor. plus i just love the look of the motor from top view...
http://www.jdmsource.ca/v2/image.asp?SRC=images/products/Toyota&#37;2FDSC03208%2EJPG&Width=198&Height=121

i will be upgrading the suspension as well , saftey is #1. but thats allready decided.
good feedbac all the way. to have a place to get this kind of feedback is somthing you cant put a price on.

thank you all.

[lechner]

I can see one good reason to go for a 2JZ besides just 'because you can.' I think if you are going for power levels that would require forged internals in a 7M build, then a 2JZ might be a better route because the stock internals could be used. If you are thinking 2JZ and single turbo eventually, you can save a bit by getting an NA 2JZ and adding the turbo ala NA-T. How to do this is well-documented and the internals of the NA are just as strong.

[SlapFunkWarrior]

nice info ... the internals on a 2j are identical between the tt and the n/a. that i diddnt know.

[lacrssgus14]

nice info ... the internals on a 2j are identical between the tt and the n/a. that i diddnt know.

Almost, the pistons are different and the GE blocks have no oil squirter's, but the difference is negligible. If you really wish it, you can have a machine shop bore out for the oil squirter's, the passages are there inside the block. As long as it is non-VVTi block the internals are the same units and can reliably hold 700hp with ease.

My setup is a 95 na block with TT pistons and all upgraded bearings/hardware. It is still an NA head and intake manifold, but cost me half as much of a stock TT engine and is brand spanking new.

[SlapFunkWarrior]

sweet. i love the info. i have been searching out 2jz clips.... but no luck yet:(