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Location:
Melbourne
Registered:
May 2002
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I supported Toymods
Location:
I renounced punctuation
Registered:
May 2002
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Re: mk3 supra + 2JZ-GTE conversion!
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Fri, 09 August 2002 09:37
 
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Emil, here is someone who has done it!
http://www.supras.nl/
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Location:
Brisbane
Registered:
May 2002
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Re: mk3 supra + 2JZ-GTE conversion!
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Sat, 10 August 2002 00:48
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You realise the 1JZ conversion is a walk in the park, right? The 2JZ conversion is a great idea, but it will cost a lot more... you could spend that money on mods to the 1JZ and end up with a better result. Depends how far you want to go with it I guess...
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Location:
Adelaide, SA
Registered:
May 2002
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Re: mk3 supra + 1JZ-GTE conversion! (no more 2JZ)
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Sun, 11 August 2002 00:21
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It won't make any difference if you get a pre-88 Mk3 if you are getting a manual JZA-70 front cut. You just bolt the crossmember from the jza-70 onto the Mk3. The only difference between the crossmembers is the engine mounts and everything will bolt up easily.
The differences are subtle but significant depending on whether the mk3 is a turbo or not. I did my 1986.5 Mk3 from NA manual to a 1jz manual from a jza-70 front cut. The alternator and power steering pump is on a different sides on the 1jz, you need to enlarge a hole where the power steering and engine fan hydraulic pipes go through the front and thats the only cuts/changes to the body you should need. Plus if you use the jza-70 crossmember you get progressive power steering too.
Of course there are heaps of little annoying things that are different, and the wiring was hard to sort out (but now you can just ask me!) but there were no problems mounting intercooler etc, even if there is no bolt on the NA body, there's usually just a little plug in the bolt hole and everything bolts in ok.
I know Norbie said it's a walk in the park - but there is quite a bit to do and it took me 6-7 weekends to do the conversion (inc new shockers all round etc.
Essentially if you transplant everything under the bonnet from the jza to the ma70 you'll be OK.
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Location:
Melbourne
Registered:
May 2002
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Re: mk3 supra + 1JZ-GTE conversion! (no more 2JZ)
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Sun, 11 August 2002 10:44
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How many hours roughly were spent all up??
I'm interested in this conversion but I cant keep my car off the road if I can help it. I'm sure it's worth it, but 6 - 7 weeks without my car isn't.
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Location:
Brisbane
Registered:
May 2002
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Re: mk3 supra + 1JZ-GTE conversion! (no more 2JZ)
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Sun, 11 August 2002 11:48
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LUMPY
Just a few quick questions. I have a non-turbo manual 86.5 ma70 as well and i am very interested in doing the 1jz conversion as my 7mge has travelled some kays.(i to dreamed of a 2jz). can i ask you how much it cost you all up. how much of it did you do yourself. how much was the half cut and where did you get it from. how many kilometers should i expect the engine to have on it. can you/ did you use the 5 speed from your 7m or did you have to use the trans from the halfcut as i have been told that they are slightly different. do you have to get this sort of thing engineered. did you use aftermarket fuel/timing management?
Thanks
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Location:
Adelaide, SA
Registered:
May 2002
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Re: mk3 supra + 1JZ-GTE conversion! (no more 2JZ)
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Mon, 12 August 2002 09:22
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7 weekends was working 1 day each weekend on car, and 2 -3 of those on wiring and mucking around. That's for two people working on the car 9.00am - 6pm (at least) every weekend.
Front cut (manual) from Japanese Motorsports - $4,500 with panels
Engine Mounts (ones on front cut were knacked) - $260 each (paid $220)
TEMS Shocks $71.50 each (paid $50)
Air Filter - $47.50
Super-Pro Urethane Lower control arm bushes - $100
SPark Plugs 6@$13.50 each
Oil Filter and oil $65
Tailshaft uni-joints and balancing $110 (for rear)
Cat -back Exhaust 2.5 inch, resonator, turbo muffler $300
Fan/Combination Belt - $50
Sundries $200 (bolts, clips, wiring bits, etc)
I know the front cut was a lot but it was hard to get a manual.
Front Cut 140,000 kms. Turbo seals starting to leak now. Otherwise is OK.
Stock toyota induction, computer, everything. I've never tuned it coz there is nothing to do! But am considering a piggyback or APEXi S-AFC soon(ish) to get a bit more out of it.
You need the right bellhousing from a 1jz engine. The 1jz came with a R154 which is bigger and stronger than a W58 box on the NA MA70's. I'm not sure if the W58 will bolt to a 1jz/r154 bellhousing but I think it does. You can buy the bellhousing from toyota but get your checkbook out!
I guess it's hard to say if a 1jz or 7M turbo is better bang for buck etc. The 1jz conversion goes very hard though and should last longer, but I thought all the time that a 7m would have been easier! The 1j cost a lot all up, but it's worth it IMHO.
[Updated on: Mon, 12 August 2002 09:25]
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Location:
Brisbane
Registered:
May 2002
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Re: mk3 supra + 1JZ-GTE conversion! (no more 2JZ)
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Tue, 13 August 2002 02:16
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thanks Lumpy
youve been a great help. what did you do with your old motor. can you re-sell it? hopefully if i get the gearbox checked out and maybe reconditioned (any ideas of the cost of that) then i might not have to get the 1jz box just get the auto. they are cheaper arent they? i all ready have bilstein suspension so i dont think ill need any of those other parts you mentioned (tems etc.)
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Location:
Adelaide, SA
Registered:
May 2002
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Re: mk3 supra + 1JZ-GTE conversion! (no more 2JZ)
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Tue, 13 August 2002 08:52
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If you went to a 1jz auto it would be cheaper, but if you want to use your g/box on the 1jz you will still need a bellhousing to fit the 1jz. I guess you could see how much they are from toyota - if you have no luck let me know, I know a guy at my local toyota place and they were very helpful with the 1jz parts. Or you could get one made - there was a thread on this topic I think on the old forums.
If you don't need TEMS etc it will be a bit easier, but I think a front cut is the way to go.
I forgot to say my p/s pump needed new seals and bearings, and the air-con pump from the jza-70 was used on my car.
The good news was the exhaust bolted straight up to the cat-converter, and the front cut came with the front prop-shaft to fit the r154.
The intercooler and piping all bolted up easily too.
I haven't sold the NA 7M because it was totally stuffed, and held on to the W58 box so if I blew up the r154 it could be a stop gap measure to get back on the road (if it bolts to 1j bellhousing and I think it does.
Also we managed to do the wiring so I didn't cut any origianl MA70/7M plugs off, and a 7M could go back in if it had to.
It's worth taking the time to do things properly - the one thing we didn't check/do as good as we should have was the one thing that leaked! (oil pressure sender).
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Location:
Brisbane
Registered:
May 2002
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Re: mk3 supra + 1JZ-GTE conversion! (no more 2JZ)
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Tue, 13 August 2002 23:06
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thanks lumpy
i will have to get my finances sorted then i will consider doing it. wont be for another 6 months at least..
thanks
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thanx
