2JZ fan in 1JZ

[jbsupra89t]

Hey,

Allow me to start by saying I *HAD* electric fans in my car. I hated it, they were wired to a switch that triggered them on full blast all the time. Car would almost overheat anytime I drove it, I would pull over and pop the hood and the temps would drop. I was sick of this, so I looked at my options. First and foremost, I thought bigger electric, but then realized I'll kill my alt if I have them full blast all the time. Then was the hydro. My car didn't have any wires run for it, so I didn't wanna dive headfirst into that. Then I thought 2jz fan/clutch assembly. I had heard that you would have to modify the FMIC piping to get it to fit, whcih didn't bother me too much surprisingly. So I picked up the clutch and fan, and dove into it. My car already had the 2jz waterpump so I was ahead of the game. To get it on, I needed to pull my radiator. This is an absolute given, I have no idea how else you would do it. That was simple, then it bolted right up, and I didn't have to touch my FMIC piping. This probably has to do with the fact that I'm single, not on stock twins. On the twins I could definitely see having to mod it. Bolted it all up, fired it up, and it worked. Sweet, now the moment of truth, the test drive. My gauge started to climb up as the car got to operating temp. Then to my amazement, it stopped at about 160. WTF? Drove around a little more in low speed traffic, temps DROPPED FURTHER. Wow, this is working great. Took out the car later with my friend (didn't feel like boosting hard, but he wanted to cruise I guess), did multiple 3rd gear pulls winding out the gear, temp got to about 170, TOPS. Granted it was cool today, but it's already showing signs of promise. Oh, and this was all WITHOUT a fan shroud, as I'm still looking for options. All in all, I think that this is a great option for those without the hydro fan, and don't want electric. I never used the hydro, so I can't comment on how this compares to it. Thanks for reading my drawn out post.

-J

[drunk_medic]

This is great information for anyone that wants to go this route. Kudos to you for experimenting to find another 1J/2J compatible setup, and thanks for the contribution.

[jbsupra89t]

Thanks! I had wanted to do it for a while, but couldn't find any concrete evidence that it DID, in fact, work. I had heard that it fit, but compared to the hydro, which seemed like the only thing that could keep this engine cool, it seemed as though it was uncharted waters.

-J

[Satan]

Thanks! I had wanted to do it for a while, but couldn't find any concrete evidence that it DID, in fact, work. I had heard that it fit, but compared to the hydro, which seemed like the only thing that could keep this engine cool, it seemed as though it was uncharted waters.

-J

Told ya you'd be happy! :drink1:

Anytime I've mentioned this setup, debates would start about why electric was better, or hydro, etc...

Since it's used in the MKIV, I'm sure there are likely to be some flow numbers for it somewhere. I wanna see some pics jbsupra89t!!!! Especially where the hardpipes are near and how that Koyo fits/looks...

[drunk_medic]

Did you have any clearance issues at ALL? I mean, are there any places where items are very close?

[Mark2JZ]

This probably has to do with the fact that I'm single

you're single? :momaru:

Good write-up and description Jacob, guess electric isn't always the way to go. BTW excellent grammar.

[tsuper92]

where does your hardpipe off the turbo go.does it go into the fender or take same path of the twin set up.i had a problem with my car heating up the other day.i have been running the flex a lite twin fan set up with a 180 deg fan switch that goes throught the radiator.i never had a problem before,but its nice if there is another solution.i also heard you can use the 7m fan shroud,but thats also got the spot for the little electric fans.if that set up works i could probably wire the little electric fans for additional cooling.keep us posted on the fan shroud set up.
thanks for the info keith

[jbsupra89t]

My hardpipe comes off the turbo, down and under the radiator and support. It "kinda" follows the route of the stock piping, in that it mates to the FMIC the same way, if that's what you're asking. I had the same problems as you heating up, so I sympathize ;) The helper fans I might eventually put in, but as it stands the koyo sits so close to the driver's side FMIC pipe, I might just mock up something for a shroud and leave it with the single fan. It's FAR surpassing my expectations as it stands, plus I don't have A/C so the extra fans would be just a small bonus. Sorry folks, I'll get pics soon, they should answer anything else.

-J

[Trust_GTE]

good results! i was also thinking about going with this setup. But, my car came with twin FALs and the previous owner says it has a NEW waterpump. So, my question is ...could the waterpump be from a 2jz? any way of telling? Also, do you have to use the 2jz waterpump in order to go electric? is your entire setup from the 2jz-GTE?

[jbsupra89t]

AFAIK, you can't use the 1jz waterpump without the hydro fan. Reason being, the WP drives the hydro, so without the hydro fan, the pump will burn itself out. At least that's what I understand? So yes I'd say the WP is from a 2jz. And yes, my entire setup is from the GTE :)

-J

[Trust_GTE]

I just found out from the previous owner that it is a 2jz waterpump. So all i need now is the clutch and fan and im all good for the setup? thanks for the info by the way!

[jbsupra89t]

You should, that's ALL I picked up. The clutch and fan assembly came as one, I pulled my radiator, installed the unit, tightened it up, put the rad on, and fired it up. Worked great and I highly recommend it :) Here is how close it will end up sitting (hence remove the radiator)

http://img.photobucket.com/albums/v115/jbsupra89t/P1010106.jpg

-J

[Satan]

I have a guy that I was going to buy the fan from, who still has it (for ~$50)... does anyone want a 2JZ-GTE fan/clutch? This is a good price... PM me with your info and I'll forward to him and get ya'll hooked up. Like JB says.... it's the way to go...

[jbsupra89t]

Ah yes good call Elvis, I totally forgot. I would've done it but another guy who I had bought from before gave me a deal, so I went there. Either way, I was getting it :) Elvis did the pics help at all?

[Satan]

Ah yes good call Elvis, I totally forgot. I would've done it but another guy who I had bought from before gave me a deal, so I went there. Either way, I was getting it :) Elvis did the pics help at all?


Hell yeah!!! them pics are awesome... I now know what radiator will work... I guess the Koyo is ~3" think and seems to fit like my stock one (as far as distance to the fan). Can you do me 1 more favor tho?????

Get a pic with a ruler, going from the core support to the fan itself. I am now VERY curious to see if the 1J and 2J actually sit at the same distance from the core support. I'll try and get a pic of mine when I get home. I've got some very spiffy stuff going into my engine bay within a few weeks and replacing that fugly, leaking radiator is top priority. What are the dimensions of that Koyo anyways?

E

[jbsupra89t]

Will do, I'll take the car out later and snap a quick shot. The dimensions I will also get.

-J

[tsuper92]

just wondering what overflow bottle your using.i'm thinking my 1jz bottle with the bottom feed set-up doesn't work as good as the 7m one that feeds throught the cap.any thaughts on this.
keith

[Trust_GTE]

Actually, i think its a better set-up (1jz) i read the thread about it on SP alittle bit ago. If your looking for a smaller one, MVP supposedly sells one that came with the Greddy 3row. But, when i called they told me i had to buy the whole intercooler. Hope that helps.

[tsuper92]

now it seems like the radiator siphons back and forth more know with the 1jz bottle.you have the line from the radiator going to the bottom of the bottle,right?
keith

[Trust_GTE]

correct. When i purchased the car, it still had the 7m's overflow tank, so i got another one(different smaller one) and switched the set-up. Well heres what i read from SF.....


12-06-2004, 11:23 PM #1
1jzSupraGuy
SupraForums Member


Join Date: Jan 2004
Location: Milwaukee
Posts: 338
coolant resevoir question

--------------------------------------------------------------------------------

is the coolant resevoir cap suppose to have a tube that goes down into the resevoir like the 7m? what is the outlet tube on the bottom of the resevoir go to? what is suppose to go on the tube?

1jzSupraGuy
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12-07-2004, 12:30 PM #2
flubyux2
Madd Tyte JDM yo ®


Join Date: Jun 2002
Location: Largo, Fl
Posts: 2,291

no. no tube on the stock 1JZ res. cap... the overflow line comes in from the bottom of the tank. its purges all the air out the top and as long as the tank is full, the 1JZ radiator will suck in coolant, not air. its a much better design. the only time the 1JZ tank will overflow is if the coolant level reaches the top and goes out the cap.

you also need to use this to run the stock 1JZ fmic, as well as the stock 1JZ bumper header panel support as the MA70 support beam (where the horns mount, and braces the hood latch) does not allow clearance for the rear of the thicker 1JZ fmic core... if you havent already swapped it.

[jbsupra89t]

Hey Elvis,

Sorry but I didn't get a chance to get a pic of the fan --> core support. I can't stress enough how damn CLOSE it is tho. It's almost like it was born to go there. Dimensions of the rad are 2.25" x 17" x 26". They might not be PERFECT, but I believe they're close as hell. Thanks.

-J

[Satan]

No prob.... I actually did not get a chance either... I'll try and get a pic tomorrow. Gettin' some spiffy stuff done ;-)

Will get ya some updates SOON!!!

[jbsupra89t]

Sick man, I should have mine all cleaned up soon too. Pic fest of the fans when it's good to go ;)

[Trust_GTE]

Just got my fan and clutch in, tried installing it but the clutch wont go in all the way. The nipple off the WP pulley looks to be too big, and it doesnt go all the way in the coupling off the clutch. I read that you have to use the tt pulley in order for it to fit, but how is there a different pulley if its a 2jz WP? Does anyone have a picture of the 2jz wp pulley? thanks

[Satan]

Just got my fan and clutch in, tried installing it but the clutch wont go in all the way. The nipple off the WP pulley looks to be too big, and it doesnt go all the way in the coupling off the clutch. I read that you have to use the tt pulley in order for it to fit, but how is there a different pulley if its a 2jz WP? Does anyone have a picture of the 2jz wp pulley? thanks

Dunno what the difference may be, but I do know that the N/A fan itself will not work. The clutch will.... so, there are some small differences that can keep it all from coming together right. Make sure that you're using the 2JZ-GTE specific items and it should all fit well. Good luck!

[jbsupra89t]

What he said, do you have any pics of the actual unit you're trying to put on, as well as what you're putting it on? Just wondering, thanks.

[Trust_GTE]

Well i got the setup for a '94 tt ( fan and clutch ) from Curt A. of elmhurst. and i was told from the previous owner that it is a mkiv water pump now that s on the car. . I'll try to get some pics up tomorrow. Is the pulley from the TT different from the NA? and can you use the NA waterpump instead of the TTs?

[Satan]

I believe that the waterpumps are the same.... since the NA fan does sit too far back on the engine, the difference may be the pulley as well. Make sure you have the TT pulley.... I'd have to call again, but I think that a rebuilt waterpump at the autoparts was the same part number....

[Satan]

I just picked up another 2JZ-GTE fan/clutch.... If no one needs it, I'll just keep it as a spare....

[Trust_GTE]

Well i finally got time to take some pics,

PIC OF THE PULLEY:
http://img.villagephotos.com/p/2004-11/884005/1.jpg

PIC OF THE FAN
http://img.villagephotos.com/p/2004-11/884005/5.jpg

PIC OF THE CLUTCH
http://img.villagephotos.com/p/2004-11/884005/6.jpg

PIC OF THE CLUTCH ON PULLEY, NOTE THAT I STILL HAVE THE BOLTS ON THE PULLEY. YES I HAVE ALREADY TRIED INSTALLING IT, I JUST PUT BACK THE BOLTS FOR NOW.
http://img.villagephotos.com/p/2004-11/884005/2.jpg

HERE IS WHERE THE PULLEY DOESNT GO ALL THE WAY IN
http://img.villagephotos.com/p/2004-11/884005/7.jpg

SUGGESTIONS?

[jbsupra89t]

That pulley I am 100% sure is different than mine. In that case, the NA pulley wont work, which is what you must have. Why do I say that? I got my fan clutch of a 94TT (which both look *EXACTLY* like the ones in your pics), and my 2j waterpump which is on the car fit it perfectly. I guess you have the NA pulley (the WPs are the same is what I'm gathering, judging by info earlier in the thread). Hope this helps, if it wasn't such a PITA for me to put the fan/clutch assembly on, I'd take pics of mine, sorry ;)

BTW, nice lookin units you got there, clean as hell :cool:

-J

[Trust_GTE]

So do i have to get a new WP? or just the TT pulley. Also how the hell do i get that pulley off...theres no bolt in the middle of it, and it looks to be two pieces. Thanks, i went ahead and bought it new :bling:

[Satan]

The pulley will come off when you remove those four bolts (12mm, I think). Ya gotta kinda "work out" how to keeop the pulley from turning as you tighten/loosen the bolts. I also have a NEW fan (gosh they look sweet)... ~$90 just for it, without the clutch.

I am going out to the shop today... I'll try to take some close ups of the pulley/belt area.... see if there's any difference...

so far...

The NA waterpump and clutch will work, but not the pulley, or fan.


What you'll need....
1. 2JZ waterpump (same for NA and TT, but someone may need to verify).
2. 2JZ clutch (NA and TT appear to be the same).
3. 2JZ-GTE (TT) pulley and fan.

[jbsupra89t]

I think you hit it right on the head Elvis, because another way to look at it is...

I have the same exact setup as Trust_GTE, mine fit, his didn't. Reasoning for this is due to the fact that we have to have different pulleys. Since my TT clutch/fan fit perfect, and his don't, he's gotta have the NA pulley. Why? Because why would the setup work on the NA pulley, but not the TT? If that doesn't make any sense, then whoops.

-J

Cliff Notes: Elvis spelt it out way better than me ;)

[Trust_GTE]

so basically i need the TT pulley correct? just another question, the pulley looks to be 2 parts, is it? Theres the pulley itself, but the middle area seems to be seperate from it.

[Satan]

so basically i need the TT pulley correct? just another question, the pulley looks to be 2 parts, is it? Theres the pulley itself, but the middle area seems to be seperate from it.

Mine was only 1-piece.... just make sure it's the TT one.....

[Trust_GTE]

Think you can post a pic or two of your pulley? - thanks

[Satan]

Think you can post a pic or two of your pulley? - thanks

Had lots to do, so I did not pull the fan off, but here're some more pics of it installed (where you can see the pulley)... tho I dunno if it will help...

Look here, in the parts folder... should be 3 pics named 2JZGTE.

http://photos.yahoo.com/g099521

My spare clutch/fan just arrived... so much for cleaning out my garage...

[Trust_GTE]

i guess that kinda helps, doesnt really show the wp pulley. Got a spare water pump pulley laying around? Nice pics by the way!! planning to go single anytime soon?

[Satan]

i guess that kinda helps, doesnt really show the wp pulley. Got a spare water pump pulley laying around? Nice pics by the way!! planning to go single anytime soon?


No extra pulley.... I'll B on the lookout tho.... as far as single... sneak peek!!!

Guess why I was to busy to pull the fan off (didn't even get a chance yet to make look real pretty)??

http://www.geocities.com/g099521/SingleKit/twinsgone1.jpg

[jbsupra89t]

Finally a pic! Yes dude looking good ;)

[Trust_GTE]

got my fan/clutch in, after i finish a couple of things everything should be good. Thanks for the help! :drink1:

[jbsupra89t]

Rock on dude! now pics!! :D

[jbsupra89t]

Just an update... in case ANYONE cares. Had the first few REAL tests of the fan's functionality this week. First came the other day when I went for a nice leisurely cruise... in 90 degree temps and 50% RH. Sitting in traffic was where the temp was highest, at 181. Boosting down the highway, multiple 3rd gear pulls, temp stayed locked around 178, sometimes dropping on SLIGHT declines in the road. I was pleased.

Tonight went out with a few friends... LS1/6s out the ying yang, temps were in the 80s tonight, less humid. Needless to say there was a lot of 2nd, 3rd, and 4th gear pulling. Temps once again stayed at 180 or less. Raised only slightly to ~182 after turbo timing for about 5 minutes... then I cracked the hood and the temp almost immediately started to dip. I am very pleased with this fan, and to me for my purposes... this passed the test.

Again, sorry for resurrecting an old thread, but I thought people should know what my personal results have been. Thank you.

-J

[Satan]

I will be test-fitting a replacement radiator from an 89T which has the shroud in the next couple of days. We'll see if the stock MA70 shroud with also work with this setup....

I am sure that the airflow is as good as the hydro, BTW.

Dunno why some guys swear by the hyrdo setup, when this is so much simpler... removes weight, point of failures, possible leaks, etc, etc.

I guess if you already have a COMPLETE hydro setup it makes sense, but alot of guys are going thru a great deal of effort to make theirs work.... I guess to be unique it might be worthwhile, but I don't see it performance-wise.

6-11-05
The stock shroud looks like it may not work, because the plastic where the aux. fans go, gets in the way of the intake piping. Maybe cutting that piece off might work, but I'm making an aluminum custom shroud anyways... not worth any more effort to see if the stock shroud will work otherwise.

[Trust_GTE]

Just want to update you guys with pics of how the set-up went. I believe that all mkiv waterpump pulleys are the same. The problem i first had( clutch wouldnt fit) was because of the cap that went over the pulley. Enjoy the pics, and thanks to Satan and jbsupra89t for the help. :bigthumb:

Waterpump pulley

http://img.villagephotos.com/p/2004-11/884005/f6.jpg


Cap off the wp pulley
http://img.villagephotos.com/p/2004-11/884005/f5.jpg


Tight fit!http://img.villagephotos.com/p/2004-11/884005/f1.jpg


Side View
http://img.villagephotos.com/p/2004-11/884005/f2.jpg

[jbsupra89t]

Nice, my fit looks exactly like that. How do you like it? Mine survived 90 degree temps for a 2 hour drive down the highway and in traffic yesterday :)

[Trust_GTE]

I LOVE IT!! the best mod yet for me( waiting on BIC's twin set-up :evil2: ) I've taken it to lakeville, CT. and it was about 80 degrees out. Did some boosting and tops it ever got up to was in the 170s, it also cooled fairly quick afterwards, surprisingly it does not stay at that temp. It stayed at 160-165 for the entire trip. IMO by far the best cooling upgrade for the 1j, anyone who isnt happy with E-fans should opp. to having it done.

[Satan]

Hey guys,
Can't remember who may have wanted it, but I really need to clear my garage up a bit...

I have a spare 2JZ-GTE fan/clutch which I will not be using. Gonna say $50 plus shipping (~$10 in US)... Email me if you want it... If anyone else wants it (but isn't the 1st to respond), I'll help you find what you need for this set up. I do believe it's the better way to go....

g099521@yahoo.com


E