1JZ Swap? Worth it?

[Evilempire1.3JZ-GTE]

why the hell argue 2jz vs 1jz

The 1jz came in our supras mkiiis factory so yes a 1jz is a drop in afair if it came out of a jza70

first of all you have to modify the throttle cable and shorten it it will save you 100$ pm me if you want to learn how to shorten it right!

2nd of all you dont need to extend the harness pm me if you want me to tell you how

3rd on the 1jz you dont need to buy an aftermarket power steering line use the hydrofan line for the ps line. because i recomend upgrading to the 2jzgte waterpump/housing with a clutch fan this upgrade cost about ~$110

so your options are to buy a clip for about 2300-2500 or buy long block for 1200 if you do the swap yourself it will cost about ~3000 for all the oil and stuff installed your self with a 1jz

a 2jz will cost over 2X that cost and you will still need to even buy 1jz parts to put it in your car! so about ~6000 to do a 2jz swap yourself a shop will add about ~2000 to the 2jz swap

if you have pre 89 Xmember add 150 for the bic mounts

the only reason to even consider a 2jz is if you plan to make more then 700whp and if you won the lotto.

 

[tturnpaw]

Ill make up a price list when i do my swap, and im going to put your quote to a challenge. It wont be na-t either, a full gte.

 

[bigaaron]

why the hell argue 2jz vs 1jz

The 1jz came in our supras mkiiis factory so yes a 1jz is a drop in afair if it came out of a jza70

first of all you have to modify the throttle cable and shorten it it will save you 100$ pm me if you want to learn how to shorten it right!

2nd of all you dont need to extend the harness pm me if you want me to tell you how

3rd on the 1jz you dont need to buy an aftermarket power steering line use the hydrofan line for the ps line. because i recomend upgrading to the 2jzgte waterpump/housing with a clutch fan this upgrade cost about ~$110

so your options are to buy a clip for about 2300-2500 or buy long block for 1200 if you do the swap yourself it will cost about ~3000 for all the oil and stuff installed your self with a 1jz

a 2jz will cost over 2X that cost and you will still need to even buy 1jz parts to put it in your car! so about ~6000 to do a 2jz swap yourself a shop will add about ~2000 to the 2jz swap

if you have pre 89 Xmember add 150 for the bic mounts

the only reason to even consider a 2jz is if you plan to make more then 700whp and if you won the lotto.

1) Why do you consider the clutch fan as an upgrade to the hydrofan? Have you ever had a working hydrofan? If you did you would not recommend removing it.

2) How are you going to get a 2jz water pump, pulley, fan, and fan clutch for $110?!? The pump alone is more then that, plus don't forget all the work to change it. It costs less to keep the hydrofan, and it's a better setup then clutch or electric!!!

3) Why would you recommend someone use the hydrofan hose for power steering when they are prone to leak, and a new ps hose is under $100.

4) BIC mounts are $175, not $150.

5) A new 2jz throttle cable is about $63 list, not $100, and the 1jz throttle cables from the clips are known to stick sometimes, which is unsafe.


You seem to inflate the prices of items you don't feel people should buy, and lower the prices of items you think they should buy well below market price.
What you keep recommending in every single 1jz thread you see is not really saving anyone money and making the swap less reliable.

 

[Van Diesel]

burn.

Glad my supra is a true jza70. No swap required.

 

[Evilempire1.3JZ-GTE]

Can I reply to this direct attack on me?

 

[Evilempire1.3JZ-GTE]

I am going by my cost:dunno:

I can provide pics and recipes

1) Why do you consider the clutch fan as an upgrade to the hydrofan? Have you ever had a working hydrofan? If you did you would not recommend removing it.

When I had it ran like crap it ran full blast 100% of the time the temp sensor is not factory on the MA70 body and when you change the radiator to the JZA70 then you could use it adding all the wiring & extra computer.
You can not even goto auto zone and say i need a new hydrofan/water pump because they blow up in a couple months running wrong.
The 2JZ-GTE water pump is one large pump instead of 2 small pumps

2) How are you going to get a 2jz water pump, pulley, fan, and fan clutch for $110?!? The pump alone is more then that, plus don't forget all the work to change it. It costs less to keep the hydrofan, and it's a better setup then clutch or electric!!!

About 2 years ago i puchased my complete housing out the door for 110 through my friend dany obrian at toyota irvine at cost!
The fan and pully was $10 used at a local junkyard it is in perris ca on highway 74.I used a credit from an automatic tranny i sold them before it was extra so it was free considering but if you have no credits with local junkyards expect to pay about 10$ for a pully and fan.
I dont think it is better then a clutch fan i have never seen any mkiv guys screaming i need to degrade my clutch fan to a hydrofan.
I didnt pay anyone 200$/hr to work on my car how hard is it really? and you also should change the timming belt while its out anyways right? or do you take that to your naborhood mechanic?

3) Why would you recommend someone use the hydrofan hose for power steering when they are prone to leak, and a new ps hose is under $100.

Mine does not leak? Do people know how to use new crush seals??The powersteering system and the hydrofan system is the same type of system? but argueing that anymore would be beyond stupid.

4) BIC mounts are $175, not $150.

Wow they went up $25 from what i paid better buy them now in another 2yrs maybe $200

5) A new 2jz throttle cable is about $63 list, not $100, and the 1jz throttle cables from the clips are known to stick sometimes, which is unsafe.

Mine never stuck is that fact or opinion mine was trimmed to length works perfect ?? would you like to see it?? as for the 2JZ cable I have heard it does stick yes and people have had problems with the 2JZ cable. I have heard you have to modify or adjust it as well to get it to work right. $100 was the price I was told last time I checked if you would like give me the part number and I can call toyota and give more facts about this and current list value and dealer discount cost and correct my post.

You seem to inflate the prices of items you don't feel people should buy, and lower the prices of items you think they should buy well below market price.
What you keep recommending in every single 1jz thread you see is not really saving anyone money and making the swap less reliable.

The prices are what I have payed.

Your opinion on how reliable my swap is with out seeing it and how many miles I actualy put on it is meaningless with out any facts.

I along with many people feel that eventualy converting to clutch fan was not as bad or worse on the supra reliability.

My mods are factory spec or better but again you have not seen it right ?

 

[csnow]

I did not have the hydro fan setup, that is why I am using the 2J waterpump and 2J clutch fan. If I had a hydro setup, I would have an additional pump and ECU as a spare. There could come a time when these items are hard to find.

Aaron, are you saying that you have seen cooling problems with people using a clutch fan, a/c fans, and a non-cracked shroud?

 

[OneJSupra]

Ok I own a 89 w/ a 7mge N/A that is completely screwed as of recent just fell apart on me, which was expected since i bought the car cheap, now the question is how big of a pain in the butt is it to swap a 1jz into into it considering they were used in the jap version if i'm not mistaken. Also if I do buy get the engine is there any special parts i need to be aware that I'm going to need in addition. if you want to know what comes w/ engine http://www.osakajdmmotors.com/introtoyota.htm Also it appears this engine does not come w/ an intercooler is that something that you have to have w/ a turbo'd engine or just an add on to help it out? I mean I'd get one eventually anyways, but the key thing is would the car be drivable till i could get the money to get an intercooler kit for it? I'll be doing this myself so i constantly be looking on her for tips and all that, but these were questions i needed to know b4 i even started if so it means i'm w/ out a car a lil longer :icon_evil
Thanks in advance

Since you will be doing the swap yoursef and never done it before I would definitely research as much as I could about it. There are tons of info on it that you can find out from this forum as well as SF. Then if you decide that it is worth it for yourself then I certainly take my time and not rush the job this way you know that it is done correctly. You can start by looking into this www.1jz-gte.us.

The question I would ask myself is it worth the money, time and pains to do a 1J swap and I would agree that it is after I drove my car the very first time with the 1J. But there will be trials and tribulations along the way and after the swap is done so be prepared.

 

[Ric]

Ive been running an autozone pump on my car for a year now... runs good.

 

[bigaaron]

I did not have the hydro fan setup, that is why I am using the 2J waterpump and 2J clutch fan. If I had a hydro setup, I would have an additional pump and ECU as a spare. There could come a time when these items are hard to find.

Aaron, are you saying that you have seen cooling problems with people using a clutch fan, a/c fans, and a non-cracked shroud?

No, the clutch fan works just fine for a 1jz if you don't have complete engine set with a hydrofan, but if you already have a complete hydrofan setup from a clip there is no reason to remove it and install a mechanical fan.

 

[bigaaron]

Can I reply to this direct attack on me?

How was it an attack on you? I disagreed with what you said and I explained why.

You proved my point with you explaination about how you got your mechanical fan, and how you came up with the prices you quoted. You got the pump at dealer cost and got lucky on the fan at a wrecking yard. How does that info help someone who is putting money together to do a 1jz swap, when he calls around to buy the same parts and has to spend well over $300 to buy them?

On the throttle cables, I have personally seen at least 4 1jz throttle cables stick. I'm just giving people a heads up on why a new throttle cable is a good idea with a 1jz swap.

On the hydrofan hoses, mine leaked, Jose's leaked, Joe's leaked, and several others. With all the power steering leaks the mk3's already have, why make it worse putting a old pressure hose designed for a hydrofan on your power steering system?

I was not commenting on your personal car's reliability. I'm telling you from experience on MANY 1jz swaps that some of the things you keep recommending are just not good in practice.

The whole reason for me to say anything at all is to help the origional poster figure out what works well when he goes to do his 1jz swap.

 

[Evilempire1.3JZ-GTE]

I understand what you mean now.
Yes the 1jz cable will bind yes if you do a swap from rhd to lhd and do not shorten it yes it will bind because people kink it or turn it to sharp but trimming it to the correct length that it should be instead of running to a toyota and buying 2JZ cable right away and saving money is a valid option a lot of people overlook.

By the way if any one wants to sell me the old 1JZ clip throttle cables for $20 I will correct the length and sell them back for $60 good as new cant help but to try.

 

[7Mboost]

Stop robbing this man's thread, you are suppose to be telling him about your experience with your 1jz and is it worth his time and money to do a swap NOT why 1jz or 2jz is better GET BACK ON TOPIC!

 

[The Reaper]

i did!!!!!

i told him the 1JZ is an awesome motor but if yur gonna go thru the trouble why not go 1 step further???? the 2JZ is just a better engine overall. if it wasn't then how come the MKIV guys dont swap out the 2JZ for a 1JZ??????? oh thats right cause the 2J is just a better stronger motor overall.

the 1JZ is a FUN motor dont get me wrong. i dawged on it the WHOLE time i owned my 7M and i smoked my buddy's Singled 1JZ all the time. so yes i dawged it. but after owning the 1JZ now it is a FUN motor to drive on stock twins. but for BIG power (my goal) the 2JZ is where its at

 

[Ric]

If you had a 7M beat a 1JZ, the 7M had to be modded and the 1JZ stock. My buddy has a MINT 7MGTE MK3 that puts around 300whp down, and yes, when I was stock boost on my 1JZ, he beat me. All I had to do to the 1JZ was just goto 14psi, and I flew by him.

What is your big power goal? Please don't say 500whp

 

[The Reaper]

ummm no its not 500whp...i want to have around 700whp on high boost and its just easier to do on a 2J

and no the 1J was not stock...DID YOU NOT SEE THE PART WHERE IT SAID SINGLED?????????

anyhow he had AEM EMS on it and i was on a 60-1 that was untuned like crazy he was on a 67mm turbo tial wg and yadda yadda yadda

we were both on 15 lbs and i beat him on the highway 3 or 4 times. im sure his tune effect it BAD but i was untuned as well

 

[Ric]

LOL

Did he have a 60mm turbo or 67mm turbo?

Lets say.. 60-1 on 93 octane= 450whp on shitty tune
67mm turbo? 500whp on any tune for 93 octane.

Sounds like the car that was at the Orlando Supra meet 2 years ago.. put down 290whp on a single at nearly 20psi.

 

[The Reaper]

his supra put down 346 at 18 psi on the 63 now he had the 67mm.

i was no where NEAR 450 whp so like i said im sure it was his tune on the EMS he was still learning it

 

[Ric]

346 @ 18psi on a 63mm is really sad, especially for a stand alone. There are a handful of 1JZ's with SAFC2, 550s, and GT35R's (61mm) doing over 500whp on 18. One of those being about 30mins down the road from my house. In fact, he did around 530whp on the dyno on pump(SC, 1jz, GT35R, MKIV 550s, SAFC2, R154). I can get the chart as soon as he comes back from away on AIM.

 

[The Reaper]

good stuff. yea the 346 he was on emanage ultimate i believe and the whole setup sucked which is why he switched it up and got all new WG and mani and turbo and EMS