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rx7 fc 1jz build

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Old 06-24-14, 02:10 PM
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rx7 fc 1jz build

Been going back and forth with this car for 3 years now driving,building,driving,building and now im changing up everything it has been. I bought it as a 2.3 turbo swapped fc origionally and rebuilt the car since it was swapped pretty poorly. So i ended up going back and forth with 2.3s after blowing and turbo, breaking a transmission, and then rod knocking the engine i was waiting for a change since i never really wanted to stay 2.3 it was just easy because i had alot of parts laying around for it and there so easy. But i ended up selling that all to buy a jz starting out this current build.
the 2.3 coming out at a wonderfull 20* outside Michigan winter.
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this is what the 2.3 setup was like in the car for the past 2 years pretty basic
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The car its all going into
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got a 1jzgte/auto trans shipped from jdm engine world
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first thing i did was compression test then engine before taking off the twins and auto trans. And like most engines that are imported every electrical clip broke and i will be getting new connectors for the whole harness.
Threw on my driftmotion t4 manifold just for a few pictures with a friends t72
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i picked up a w58 trans that i will be using still looking for bellhousing and 2jzge flywheel and then going to be ordering a act clutch for it as soon as i get most of the engine bay sorted out.
This is before i scrubbed the trans for 2 hours with purple power
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Im using xcessive manufacturing mounts for the engine and transmission mounts and so far i have no complaints the heavy duty metal and make sure when your installing them to read the instructions because its a tight fit with the mounts and theres a certain way to install
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And its in this is just engine without transmission since im working out clearances and seeing how im going to route the cooling system
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Im going to be working on it more today since i plan on getting the engine to fit with stock hood and without using any type of subframe spacers which may be a small challenge, also mounting up the bigger intercooler
Old 06-29-14, 10:05 AM
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Do those mounts attach to the OEM FC engine mount location on the car? I can't tell. I was planning on the tech 2 swap kit but excessive is cheaper but I'll need to have a driveshaft made and buy the shifter extension or find the OEM toyota extension that came in the (soarer? don't remember. that or chaser). Figure it would be cheaper that way.

Does it look like you will be able to make the hood work? With the tech 2 mounts, all you need to cut is the ribbing. SketchHS made his own mounts but ended up cutting a hole right in front of the t2 hood scoop. he has a build thread here somewhere. I'm looking to get the engine as low as possible without using subframe spacers as well.

you using the rear sump oil pan?

I'm just doing prep research. swap probably won't happen till next year.
Old 06-29-14, 10:02 PM
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-With these mounts yes you put a poly motor mount into the OEM mounting location and attach there supplied brackets onto the engine its a pretty easy installation No cutting/drilling/welding. Right now i have gotten my hood to clear by cutting out the hood bracing.

-Tech2 Mounts and these mounts both use a sub frame spacer for hood clearance which is a issue with using a 2jz the 1jz is a shorter engine itself but not by much, But with the slight height difference i can now close my hood without issue And i would prefer spacing a hood or modifying a hood then fitting a 2in spacer for my sub frame.

-The only issue i have currently which is expected is the sway bar is rubbing on the front part of the oil sump which will be fixed by spacing the sway bar.

-Using a rear sump mk3 supra 1jzgte engine and a mk3 w58 transmission.
The transmission looks like i will be able to modify the factory mk3 shifter to work in the fc tunnel.
The transmission that would be ideal is most likely a later model soarer transmission or yeah a chaser transmission with the extended shift cage, personally you can cut and extend any of the shifters so that isnt a huge issue.

Ive been researching this swap since i picked up my rx7 and so far its going together pretty easily at the moment. If you want any pictures or anything let me know
Old 07-02-14, 11:48 AM
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Thank you for the info. I think sketch_HS made new mount pedestools on his subframe so thats why I asked if these used the OEM mount location. Let me try to clarify, did you end up not using the subframe spacers? I'm pretty sure you weren't. so you have gotten it to clear just by cutting ribbing, excellent. I'm guessing the subframe spacers would allow for no cutting of the hood at all though. I have an aluminum hood and I think I may just sell it and get a fiberglass hood so I can cut that up/vent it where it needs to be rather then hack up a good aluminum hood (needs paint but). I could also just mold off my hood easily with fiberglass and do it myself.

sway bar isn't a huge deal but the shifter extension I would rather use the toyota factory one or a professionally designed piece rather then hobble something together lol. Thats just me.

Do you know what you are doing for fan/radiator/intercooler setup yet? when I was planning on t2 swapping I had my heart set on a v mount setup but unless I cut that top section between the head lights and fab some new setup, thats not going to work. I'm trying to not totally moleste the car to all holy hell in case I ever sell it and someone wants to do something different. I'm also not an A+ fabricator but I can get the job done. I'll probably just go front mount. I was reading another jz fc swap thread here or norotors. he cut it all up for space for radiator and intercooler and stuff and made a bash bar and brackets. looked legit.

One more question, you are probably using an exhaust (and modded 1jz or custom downpipe) designed for the FC. I know that rotary mufflers are straight through design. I'm interested to know what exhaust you are running and how it sounds. whenever you get her out on the road that is.



I'm going with the r154 trans but having a hell of a time locating any on ebay/craigslist. haven't delved into supra/soarer/chaser forums classifieds yet though or any importers. I'm just browsing anyway, not ready to buy yet.
Old 07-02-14, 11:54 AM
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Also I think I'm going to try for a non-vvti jz. simpler is better. I see a lot of them are vvti though. I'm probably going standalone when I do my swap too so non-vvti I figured (based on nothing lol, don't know how complicated the vvti system is)would just be easier to setup the tune for. I have lots more reading left to do on that subject. its going to be my first big wiring project but with patience and triple checking everything matches diagrams/is going where it needs to it should be fine.
Old 09-25-14, 09:58 PM
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a small update since there hasnt been too much going on with it still getting in all my parts for mockup before i can begin to get everything finished

I did pick up a precision turbo a sc61 .70 off a na-t guy that was going bigger though it should make the power i want 400-450 range, i also fitted my downpipe which fits surprisingly well, its a driftmotion downpipe the only thing i will be changing is the bottom of the flange is 2 bolt and hits the body but i will be welding on a vband and fitting it with my current exhaust, its alittle slow now because instead of sending off the small parts that will need to be welded to fit for my application i just bite the bullet and bought a tig welder a Eastwood 220 to be exact which should suit my needs just fine.

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yes i know i cant wait to get a actual camera but my broken phone will have to do for now
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Also i traded the coilovers off my s14 for a aem for the 1j i still am going to need to make a wiring harness and figure out which injectors i will be running but im going to have all winter to get it together. hoping to still have the car done by early spring
Old 11-05-14, 11:03 PM
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How goes the swap? slowly starting mine
Old 12-02-14, 02:35 PM
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so not to much has been going on i bought a s5 vert to part out and just finished up getting rid of the shell.
found it on craigslist hasnt run in years just been sitting in the backyard so the top is garbage aswell as the underbody. but nice thing is the interior is all there and hasnt been taken apart 100x so everything is in great shape.
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looks real good from a few feet, untill you look at the chassis itself.
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so now i have a spare rear subframe
all black leather interior
5 lug swap with bigger brakes and vented rear brakes
spare fenders and s5 front and rear bumpers
and the aluminum hood which i was surprised how much lighter that is
at first i didnt want to part this car out because it seemed really clean, but the deeper we got into it the more i relieased that this chassis was not worth to salvage so it at least will be used to finish another rx7.
i also got my bellhousing from driftmotion and will be getting my clutch and flywheel next, always nice to have oem parts
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Old 12-02-14, 02:37 PM
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i picked up a aem v1 to control the 1j and will be shopping around for a wiring harness, still deciding if i want to use the oem gauge cluster vs doing aftermarket cluster.
Old 03-31-15, 12:57 AM
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Updates?
Old 05-21-15, 10:27 AM
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alright so things have been alittle slow on the project but still working on it as much as i can still waiting for a flywheel so i can put the engine and trans together and in the car for good.
So things that have been changed is i cut out the old 2.3 engine mounts that were welded on the frame rails, cleaned up afew spots in the engine bay and sprayed to black.
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also decided i was going to put down some aftermarket sound deadening and try and make this a nice street car, its going to be pretty minimal on chassis wiring trying to make it as simple to maintain. I origionally had countless issues with the harness that was in the car no working headlights, wires scattered everywhere, I ended up buying a untouched harness to get rid of all those issues.
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Currently i have the 1j sitting on a stand waiting for afew little parts before putting it back in the car.
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right now im weeding out all the unnecessary wires on the car, and then will be routing it all before the carpet goes in. stilll some work to go but all chassis functions are working now.

Last edited by stevens1092; 05-21-15 at 10:30 AM.
Old 05-24-15, 10:35 AM
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pretty interesting stuff.

what's the deal on that MR2?
Old 05-24-15, 10:43 PM
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the mr2 is my brothers we picked it up a few years ago rust free black on black 91, then it ended up blowing the head gasket a few months after buying it. probably going to be selling it soon or possibly swapping it after my cars back on the road.
Old 05-27-15, 12:40 PM
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Nice build! I just finished a 1JZ swap into my FC, just waiting on some capacitors to replace the ones in my shitty ecu. And nice turbo, maybe ill be able to afford one once im out of school.

Let me know if you have any questions!
Old 05-27-15, 01:47 PM
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I'm also currently in the middle of a 1jz VVTi swap into my 87 FC. Waiting on some replacement parts that were damaged during shipping. Anyone have a link to a power steering hose that goes from the 1j pwr steering pump to the fc rack cleanly?
Old 05-27-15, 02:39 PM
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Running a manual steering rack so i can't help you there, but I think you might just have to get one made, or make one yourself with some fittings. I don't think it'll cost too much.
Old 06-02-15, 02:47 PM
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Originally Posted by pumpupthejam
Nice build! I just finished a 1JZ swap into my FC, just waiting on some capacitors to replace the ones in my shitty ecu. And nice turbo, maybe ill be able to afford one once im out of school.

Let me know if you have any questions!
Just got my 1JZ in and I'm about to tear out the rotary. I have a few questions. Did you stick with the hydrofan or get the 2jz pump and convert to an efan?

I'm trying to find some cheap efans to use that will fit. Plan on using Xcessive mounts. It's nice to see other people doing this swap as well!
Also, did you use the FC radiator? I hope to use it as I'm doing a budget build lol


Nice builds, guys.
Old 06-03-15, 10:25 AM
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Originally Posted by Sythe
Just got my 1JZ in and I'm about to tear out the rotary. I have a few questions. Did you stick with the hydrofan or get the 2jz pump and convert to an efan?

I'm trying to find some cheap efans to use that will fit. Plan on using Xcessive mounts. It's nice to see other people doing this swap as well!
Also, did you use the FC radiator? I hope to use it as I'm doing a budget build lol


Nice builds, guys.
Threw out the hydrofan and went with the mechanical pump. I had clearance issues using the fc radiator, so i bought an sr20 one from cxracing that came with electric fans, super cheap. Xcessive mounts will not fit with stock twins oil feed lines, just a heads up. If you plan to buy the mounts and stay twins, you'll have to buy different oil lines. And idk if Xcessive has a tranny crossmember that works, they didn't when I was swapping it awhile ago, so I had to weld one up, but they might now?

P.S.

Sorry! Don't mean to jack your thread!
Old 06-03-15, 05:14 PM
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Originally Posted by pumpupthejam
Threw out the hydrofan and went with the mechanical pump. I had clearance issues using the fc radiator, so i bought an sr20 one from cxracing that came with electric fans, super cheap. Xcessive mounts will not fit with stock twins oil feed lines, just a heads up. If you plan to buy the mounts and stay twins, you'll have to buy different oil lines. And idk if Xcessive has a tranny crossmember that works, they didn't when I was swapping it awhile ago, so I had to weld one up, but they might now?

P.S.

Sorry! Don't mean to jack your thread!
They do have the crossmember. Thanks for the tip with the SR20 fan. I'll take a look at it and yes, I plan to stay stock twins and use the xcessive mounts as I'm not a great welder and it would be much easier to buy new feed lines.

I appreciate your help! Also, what oil cooler are you using? Sorry, this is biggest venture I have embarked on alone and I have a ton of questions. I am also budgeting for this swap and want to do it right the first time. Any further information you can offer will be a massive help to me.
Old 06-05-15, 12:18 AM
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if i were to do afew things over again i think i would have stayed stock twins because mine were in pretty good shape but i wanted to keep the car simple to maintain so i went single right away, but im sure being single turbo will be worth it once i want to make more power. My radiator setup is set back a lot further then the factory setup, I have not tested the xcessive trans mount yet but im sure it will fit without issues. as for power steering lines i had mine made at a local shop, just showed them which fittings i needed and length and they made my lines that i used for my 2.3 turbo lines, thankfully they'll fit the 1j pump aswell. I just need to mount a reservoir and route the low pressure side.
Old 06-05-15, 01:49 PM
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What way did you guys route your FMIC piping? If you had to relocate your windshield washer reservoir for the piping, which way did you go with it?
Old 06-06-15, 01:48 PM
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I've never had working washer sprayers. I plan on just mounting a reservoir behind the fender.
Old 06-07-15, 02:45 PM
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Are you guys using the oil cooler from your rx7?
Old 06-18-15, 12:54 PM
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Im not gonna run a cooler on it initally but after i get the car going i will be putting on a oil cooler kit.

- so i worked on the car alittle bit over the weekend and since i dont have to much to do before i order my flywheel and put the engine back in. I moved to the interior and we got quite a bit of it installed to see how its going to turn out. I couldnt find a set of black manual door panels so i ended up trying a spray dye, and it turned out pretty well i think. I tried to reuse as much of origional black door panel pieces and trim that i have from the vert over dyeing more pieces, turns out s4/s5 air vents on the panels are the same and swap over.

these were the original panels that i sprayed also the lower fabric is sprayed.
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and i did do another coat on this lower panel after the picture seems like after the last coat it is more of a deeper black and dont seem anymore red fabric underneath. but might just rewrap it in a black fabric eventually just wanted to see how the dye would work. still need to finish the drivers side panel aswell.
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looks to me alot better then the origional interior once everything is all in there a buttoned up also tossed in my s5 vert seats.
Old 06-19-15, 01:55 PM
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Originally Posted by stevens1092
Im not gonna run a cooler on it initally but after i get the car going i will be putting on a oil cooler kit.

Thanks for the information, build is coming along I see. I've got Xcessive mounts on the way, should actually be here today. I don't plan on using subframe spacers so all you had to do was cut your hood bracing?


I've been examining every 1jz fc build I can as I am right at the point of putting the JZ in.. just have to remove the final bolts from the rotary but it has been raining all week (and I don't have a garage to use).


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