I was told by some people that it would be easier to swap in the 1JZ, but a friend who frequents these forums said that a bunch of you guys were running the 2JZ in your MKIIIs. I was wondering how difficult it would be to swap for the 2JZ...what it would entail, and a list of parts necessary for the swap.
Also, would it be easier to go from the Turbo or the NA model of the MKIII? Are the ratios different for the cars? Anything else in particular I should know before I attempt to undertake the whole process? Thanks guys
its a pain in the ass, you not only have to convert to single turbo right away you also have to knock back the firewall a bit and... ur better off with the 1jz.. in fact... screw them both... 7M POWER!!!
Money isn't really a problem. I've got a job where I make quite a bit of money, so that's not really a problem. And if I'm a bit short I'll just take out a loan covering half of the project and I'll be set.
I've done a search, and couldn't find any information that was at least semi-detailed, but I suppose I could be looking in the wrong place.
What would be the advantage of running a 2JZ-GTE over a 7M-GTE anyway? I know that the 7M can handle about 600hp pretty reliably, and I'm not sure anything more than that is necessary
Parts are less common, as is it's (The 7M's) usage. This is both a blessing and a curse.
The 7M can make $1000 hp, however it will cost you. This is where the 2JZ has the advantage. Since it's become a 'popular' motor everyone makes shit for it. Everyone. Personally, this makes me much less interested in it. I'm not about doing the same crap that everyone else is.
That being said, the 2JZ (2997 cc) has a bit more displacement compare to the 7M (2954 cc). The engine is generally a better base. It has years more refining in it then the 7M and is much more recent. Without talking about head design, cam design, and crank information this is as indepth as I'll go.
They are both very good motors (though the 2JZ doesn't have the same flaws the 7M does out the door) but the 2JZ-GTE has more of a market and starts with 100hp more than the 7M-GTE, both good reasons why people love it. To me, it's a whored out concept "OmG, ill be c00l and put a 2JayZee in my car and do for turboz!"... you get the idea ;-)
Either way, to put a 2JZ-GTE into a MA70 chassis, you'll need to pound out the the trasmission canal, and a few other things as the motor doesn't just slide in. You'll have to have the proper motor mounts and suspension crossmember. You'll also need an ENTIRE front clip, not just a 2JZ-GTE engine. You'll need the engine, all it's sensor, an intact wiring harness, an ECU, the transmission (V160 Getrag, Not Cheap) you'll also need to modifiy the shifter assembly to fit in the factory location as it's way off if you just drop it in. You'll need to figure out what driveshaft works, and the same with the differential. All and all it's not a cheap thing at all. Just lookin' around the web, a 2JZ-GTE front clip can run $6500 to $8000. Figure a good deal in parts + fabrication + damaged sensors (and keep in mind that anything with the word "Supra" in it has a 150% markup). I would expect to see it over $10,000.
To answer the old question, yes, the Mk3's had different final drive ratios. Several diff. gearings between 3.73 and 4.30 came in various Mk3's.
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1988 Mk3 Turbo Targa - 17.5psi, 486hp, 494tq.
[img]http://www.**********s.com/supra/rsw_sig_stupidTN.jpg[/img]
Who came up with this 500px wide BS?
I'm going 2JZ but thing is its an easy swap for me...i can keep the stock twins, i dont need to do ANY firewall mods at all and the transmission slides in like it was made for it. considering the fact that LHD cars have everything in the way i would personally either build up the 7M, there seem to be ALOT of good 7M builds in america and canada, or go for a 1JZ which while has a good stock HP rating its still pretty gutless and even with a JZA70 JDM halfcut you will need to make it fit since you have everything in the road.
if you were in a RHD country i'd say go for the 2JZ, but you will encounter lots of problems that will be annoying to deal with. Especially the single turbo, that means new ECU, lots of BS work and then tune time...
in the end good luck with whatever option you pick...
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For the haters that said it'd never happen!!!---> 1990 Toyota Supra, 2JZ-GTE conversion!
I'm going 2JZ but thing is its an easy swap for me...i can keep the stock twins, i dont need to do ANY firewall mods at all and the transmission slides in like it was made for it. considering the fact that LHD cars have everything in the way i would personally either build up the 7M, there seem to be ALOT of good 7M builds in america and canada, or go for a 1JZ which while has a good stock HP rating its still pretty gutless and even with a JZA70 JDM halfcut you will need to make it fit since you have everything in the road.
if you were in a RHD country i'd say go for the 2JZ, but you will encounter lots of problems that will be annoying to deal with. Especially the single turbo, that means new ECU, lots of BS work and then tune time...
in the end good luck with whatever option you pick...
You will still need to beat in the transmission tunnel, there's nothing that changed from LHD/RHD that would prevent that...
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1988 Mk3 Turbo Targa - 17.5psi, 486hp, 494tq.
[img]http://www.**********s.com/supra/rsw_sig_stupidTN.jpg[/img]
Who came up with this 500px wide BS?
You will still need to beat in the transmission tunnel, there's nothing that changed from LHD/RHD that would prevent that...
tell that to a friend who has already put his in, transmission tunnel needed NO modifications, theres miles of room for both the auto and 6 speed, this is in fact the first time i've heard someone say that needs to be done? in a MkII putting a 2JZ in you need to do mods to the trans tunnel but in a MkIII the boxes between are of similar sizes and the V160 is smaller then the MkIII auto by roughtly 1.5"...he'll have his finished shortly as his been having problems with the wiring.
i'm curious now as to who has had to belt there trans tunnel out to compensate for the box to go in neatly?
^^^ sites not quite finished yet but you'll find when the pictures go up that its a nice fit for everything, dunno when the site will be complete but his working on it.
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For the haters that said it'd never happen!!!---> 1990 Toyota Supra, 2JZ-GTE conversion!
first i've heard of that then! cause the examples i've seen here and my friends on there was no trans tunnel modding or belting with a hammer...and i doubt theres a dif between a JDM trans tunnel and the US spec tunnel.
I'll post pictures when i put my transmission in! no where near there yet but wont be more then 4 months or so.
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For the haters that said it'd never happen!!!---> 1990 Toyota Supra, 2JZ-GTE conversion!
If it's really a royal PITA like that, I'll stick to the 7M-GTE. If you could drop $3-4K on the engine, what would you recommend. Most of my money will be going into Suspension/ligtening up the body because to me handling is far more important than rediculous power
If it's really a royal PITA like that, I'll stick to the 7M-GTE. If you could drop $3-4K on the engine, what would you recommend. Most of my money will be going into Suspension/ligtening up the body because to me handling is far more important than rediculous power
well covered in other threads, but here it is again: 3-4k for the engine
1) resurface the head and block and slap in a metal gasket if it is a healthy motor and you have more cash for other things (suspension etc). Rebuild the works using metal head gasket and shiny new pistons for up to ~500hp if it needs more work, knowing an unhealthy motor is a quick way to have to do it again...
2) power up to a safe 350RWHP or a bit higher: upgrade the stock turbo (57-60 trim), fuel pump, adjustible fuel regulator, 550 cc injectors, exhaust from turbo back, a clutch. That should pretty much consume the high end of the budget.
Okay, that sounds good. I'd rather just drop in new pistons...who makes a good kit for the 7M-GTE? Also, how would I go about resurfacing the head/block (if it's not too detailed to say). I'd rather do everything I possibly can myself, rather than taking it to people to do it. I've never had to resurface a block before, but I'm gonna take the heads off and do them up nicely...possibly RB26 style because that's pretty much my favorite block in the whole world (nice candy apple red style, nothing too flashy).
Throwing in new turbos would definitely up the cost a lot, so how much boost can I safely run with the stock turbos? Will they get up to 20PSI? I'm gonna be putting in a Blitz BOV, HKS VBC and HKS MGH (not sure what thickness to get though). Am I gonna have to do anything with the ECU because of all of this?
Any recommendations for fuel pump, fuel reg and injectors? I'm guessing I should get a FCD also? Thinking HKS exhaust, only because that's the only company I know of that makes decent exhaust. It's kinda flashy though, and I'd like to avoid that if possible. If you know of any other companies that make nice exhaust feel free to chime in. I'll be set on the clutch, I know what I want there. Look for at least 400RWHP, which I'm sure is possible with this motor.
Gonna throw in a Tein suspenion kit, though I'm not sure which one I want yet. Got some plans for the interior too.
Sorry for all the questions, but I want to make sure I do this right the first time and don't have to go back over and do stuff again
Kind of an aside here, but does anyone make a CF hood for this car, and if so does anybody know where I can go to dye it to the car color so it's not obvious I have one?
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i would personally either build up the 7M, there seem to be ALOT of good 7M builds in america and canada, or go for a 1JZ which while has a good stock HP rating its still pretty gutless and even with a JZA70 JDM halfcut you will need to make it fit since you have everything in the road.
cause the examples i've seen here and my friends on there was no trans tunnel modding or belting with a hammer...and i doubt theres a dif between a JDM trans tunnel and the US spec tunnel. 
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