1JZGTTE or 7MGTE

[slygambit777]

Hi, I really need to know where I can find performance parts for the 1JZGTTE, especially the internals (cams if possible). I already know of the parts on suprastore.com, but those arent enough. I amin dire need so that I can decide on a 1JZ or a 7MGTE. I would also like to know if you guys think I should get a 1JZ or a 7MGTE. Thanks alot for your help.

[TcmaBoy]

Contact HKS USA. They can special order parts from Japan. I believe they have cams. Contact companies like JE, or Arias. They may be able to provide pistons and rods. Have the specs of the stock pieces ready.

[stefanzhr]

Get the 1jz
Its the engine that some mkIV's use but don't take my word for which one is better- i'm still new at this stuff.

[Yellow 13]

The engine blocks are pretty similar, But if your still new I would go with the 7MGTE, Its alot simpler to work on.

[logic2k]

hey
think about it like this the max power output of any engine is determined by its size so if your looking for power stick with the bigger one also its simpler to get parts for the 7m.
As a matter of fact the only reason for making the 1jz was the redused taxes to toyota for keeping the size down. they knew that it was baddley underpowered thats why the put the twin setup on the motor.
on top of all that cheaper to get parts for the 7m and you dont have to go to japan to get them. do this go to ebay type in 1jz vs. 7mgte

[projectsupramk3]

Where did you hear that huge load of jibberish. The 1jz-gte (ONE "T", twin turbo does not get "TT" ) came FIRST in 1989, before the 2jz-gte years later. The number in the front is the revision to the engine, the same way the 3M came way before the 7M. You don't need a 400cuIN engine if you can get a reliable 400hp out of a 3.0L, there is nothing requiring them to keep size down which is why there are a lot of larger displacement V8 and even some V12 engines. You use a smaller engine because it weighs less, it's more efficient over all, and thus your car will handle better and require less power to move the same speed and be cheaper to produce. Keep in mind your only talking about 0.5L here, that minute amount has been blown off the charts by technology, 280hp stock vs. the 7m's 230hp. If you have a hard time finding parts then do not get an engine that wasn't sold here. Don't get the 1jz because it's JayDeeM t1Gh7 and you just want to blow $5K, get it because you have felt it's power band, you have seen what it can do, you can readily find any parts available for it, and the engine fits your style. If none of those are true you need to stick with what the 7m.

[Yellow 13]

What about tha Japanese 2.5 Liter version of the engine? Its a very reliable engine, just not as big as the american version.

[projectsupramk3]

2.5L version of what engine? The 1jz IS the 2.5L, the 2jz is the 3.0L, there is no american version of a 1jz.

[Yellow 13]

My bad.

[projectsupramk3]

Not a problem, one way to learn is simply to ask.

[DemoDaddy]

Go with a 7M. By the time you pay for the clip you could have a very potent 7M. Plus 1J parts are hard to get and are expensive. Check out 7mpower.com. 7Ms do put down respectible horsepower, people are too quick to swap in a 1JZ.

[twint88supra]

<has an 88 with 2jzgte, so from experience the 7mgte is a turd not counting the well known HG , 7mgte might be ok if you replace all internals especially crank. gl either way the $$ will be about the same for the stock 2jz or 1jz w/tranny+ecu as 7mgte with all new parts w/tranny+ecu . btw the stock M ?something? tranny with 7m is garbage too, lol id go jz, less headaches . gl bro

[HondaOz]

i accidently mixed up my positive and negative terminals in my battery, now my car doesn't start and i don't hear the fuel pump cut on..... i though it might have been a fuse so I went ahead and changed it, but some people tell me I fried my ecu, what is ur opinion on this?

[projectsupramk3]

Good info "twint88supra" , I suppose you have proof to back up every one of your rediculious statements. Lets break it all down since I don't want people here to believe any of that. The price isn't even close, a low milage JDM 7m-gte with an R-154 is only $600-700. Bolt-in, straight swap, nothing else needed if your turbo (another $200 worth of parts if your n/a). A 1jz-gte JZA70 halfcut is a whopping $2500 on average, some more, some less. Plus you still need a few more parts like a PS line, throttle cable, 89+ subframe if you don't have one, extended harness (if you can't do it yourself it will cost you big money). Now onto the 2jz, if you get an engine and transmission only it will cost you about the same as a 1jz half-cut. You will need tons of wiring to get the stock ECU to work, or to go standalone which is another $1K plus a few custom brackets and DS as well as the above mentioned 1jz parts needed. You can hardly say that's all the same price. There is nothing wrong with the 7m internals, there is even less wrong with the 6m/7m crank. Have you ever noticed how people never touch the stock crank, except to knife edge it or balance it better. Stock rods are good to 350hp or more but after that they should be stress relieved/shot peened/magnafluxed for some more hp. The M something transmission? The W-58 is good for 350hp, a few people are currently running more than that through them with success though. The R-154 never needs to be upgraded internally, some have problems with the 1-2 syncro breaking after the transmission has been ragged on for 200K miles but that should be expected. You can hardly call that garbage and use it as an excuse to swap in a 2jz.

[attica85]

hey quick question about all this how much faster is a 1jz-gtte than a 7m-gte if every thing else was as similar as possible with the exception of the trans?

just wondering 'cause im thinking of doing this swap too but don't want to if i could be sly about it.