Need Help and opinnions on my rebuild!!!
 

ok so i have a 7mgte with a blown head gasket (shocker :P) and valves that have broken loose and are now slapping against the pistons and head, i planned to rebuild the car almost completely with engine rebuild, MHG, intercooler and BOV, oil cooler, and alot more. my problem is i priced a complete rebuild at Driftmotion with upgraded oil pump/oil pan, forged pistons, all machine work, new stock valves (if the head is usable), full arp hardware, 7/8 exhaust stud upgrade, braided internal oil line, and probably more that i cant remember. this was all for 400 whp reliably for everyday use and room to grow if i wanted to. If im going to redo everything anyway would it be more benificial and cheaper for me to swap in a 2jz and build from there??? idk what to do im stuck at this point both seem like good options but idk which way to go.

also i have heard very good things about the builds driftmotion does and all their machine work is well done from what iv read, does anyone have any imput on this or have had an engine rebuilt with them id like to know how your experience was with them before i decide to send my 7mgte off to them or try to sorce a 2j depending on which way i go.

thank you for reading all help is greatly appreciated

Imho if u want reliable power go jz. U could get your 400hp mark with basic upgrades such as down pipe intercooler and intake plus a boost controller on 2jz. If u went 1jz u would need to go to a single turbo or upgraded twins due to the cheap turbos Toyota used on them.

i have really considered going 2jz and theres a shop close to me that has cast aluminum manifolds and all kinds of other goodies they could throw in it for me :) its going to take some time to get the funds for this but it will be fun in the end :)

I promise u won't be disappointed or broke down on the side of the road with a BHG if u go jz. :bouncy::bouncy:

that sounds nice and im sure the jz will take the daily driver/ weekend drifter abuse just fine, what is the stock hp limit on the 2jz? like before i have to start upgrading internals and what not.

and did you just throw your 1jz in once you got it or did you have a mild rebuild done before you put it in? i want my motor to run well thats all i want i dont want any problems with it untill after 200k miles like mine did it made it to 238k before it blew it still runs but it sounds like chewbocka and a teapot boiling every time its driven

Well here is the magic of a jz engine the block including pistons and rods are capable time and time again of 900hp. the valvetrain however is only good to around 600hp. Plenty for a daily driver.

I didnt do any kind rebuild on my 1jz I bought the front clip and it only had 48k miles on it but they sit for awhile in Japan so I replaced the timing. Serp. Belt. Front and rear main seals. Neither appeared to be leaking nor is there any sign of a leak on the whole engine. I also replaced all vacuum lines and installed a catch can to pro long the life of the the stock twin turbos

2jzgte doesn't have the same problem with the turbos.

Chewbaca rules. But not when ur car mocks him

Nothing wrong with the 7MGTE
 

I have purchased parts from Driftmotion. Bad advise, good parts. However, I have no experience with Driftmotion rebuilds.
Having said that, the list you supply sounds good for a "reliable" 400 WHP build.
I really question the infactuation with the 1JZ. The 7MGTE is a strong engine. Capable of outstanding performance. Correcting the head gasket issue makes it VERY reliable.
NOTHING wrong with with the 1JZ or 2JZ, but why go to the trouble?
I suggest you weigh the cost of all options, rebuild verses engine swap. Consider the "quality" of the JZ engine you intend to purchase. Do you know the real condition of that JDM engine? Most likely, a rebuild of the engine will be required prior to install, to make sure it is sound.
Bottom line, their is nothing wrong with the old tractor motor.

My facuation with the 1jz is experience i have had both and the m series engine is way more prone to oil leaks. And coolant leaks even after replacing all hoses. It's still a bad ass motor but is very old technology. Head gasket even after repairing still have a high chance of leaking due to poor design of the head. but I'm not a 7m hater I have built two and one over 500hp. And it was fast. but it seemed after every race there would be a new leak somewhere.

As far as the swap goes. It is hella easy. I would put it next to swapping a honda if the wiring wasn't so tedious but 7 bills can fix that. And with just a turbo upgrade u can have 600hp with a stock engine. That's why I fell inlove with the jz series. Not to mention all the details of the engineering differences that makes it so reliable and strong. I bought mIne as a front clip so I could have actual miles which was 48k BTW. And that motor was absolutely spotless not a drop of oil anywhere on it and it dropped in and runs like a champ. but be catious of buying an engune the company I got mine from sent me video of it running in the clip and did a compresion check on the video

im not saying there is anything wrong with it i just dont think my engine is going to be as repairable as it needs to be if i need to buy a head i think i might just junk it but its still up in the air

and i admire the fact that the 1j and 2j are easy to upgrade to higher levels of hp with one upgrade i like both series and may end up building both in the long run id love a divorced down pipe and so when i take the twins for a spin i hear them as soon as it turns over :)

what company did you buy the engine from if i can get an engine like that comp tested and runing in video id be alot more at ease about buying one

http://www.jrautoparts.com/clip_toyota_1jz.htm

I bought the last one he had in stock as of 4 weeks ago. Really good customer service. I highly recommend him

true man so are you done with your swap

Yes I am, everything but a clutch pedal cuz i had to do a auto to manual swap. but the jdm rhd pedal is different for some dumb ass reason.. if ya kno some one let me kno
I can't find one at the moment

thank you for all the info i have decided i am deffinatly going to do a 2jz swap im picking up a 1ton engine lift, 750lb engine stand, and a jack and 4 jack stands this thursday and ill hopefully get my old beat 7mgte out soon after i get the gurage cleaned (cealing caved in!!???)

if any one has any links or info to help guide me through the swap i would really appreciate it id like to get as much homework done before the swap so i can get right into it and get all i need at once which will still be awhile im also planning to start collage soon, but ill keep you guys updated :)

how much do you think i could sell my ct26 with less than 300 miles on it with a brand new enamel painted exhaust manifold(old one was cracked on turbo mating surface) with new coolant lines and Driftmotion flexible oil line kit for on here for?

the turbo and everything is literaly brand new it cost me 750 i believe just for the turbo

Here u go my man.
http://www.supraforums.com/forum/sho...d.php?t=292754
Good luck. Let us know how it goes. Take lots of pics. I am building a how to 1jz thread. It will be nice to have a 2jz one also.

your right i think im going to take pictures of every step and do alot of research and make a nice 2j walk with paint circles, part numbers and what to do and what not. through iv contacted aaron at driftmotion and asked him for some imput on the swap procedures also

keep in touch bro maybe we can help eachother out with finding information and what not its going to be a few months before i start the swap i need to get the front end fixed 1st then im going to start tearing her down and get the old beat 7m out i hope i can sell the old block for 100 or so and get quite abit for the turbo and all that its basicaly a 7mge to 7mge+t kit without the turbo wiring harness

well i have actually decided to rebuild my 7mgte now sence im starting collage soon and i will need all the money i can to get me through it so im going to have to put my dreamed of 2jz swap in the future :( i could do it but it would take me for ever and i want my car running

any suggestions for a 400hp reliable 7m build?

Just a good rebuild with oem parts and good machine work with arp head studs and metal headgasket and bout 18psi with a modded ct26. will get u to around 400 but that's about as high as u will want to take it without upgraded internals or in otherwards.$$$$$$$$$

And like I said earlier. In my experience 7m and reliable don't belong in the same sentence! I've owned 3

sounds good im going to throw the forged pistons in just for peace at mind

i just hope to god my crank and head are in decent shape ill be posting pics once i get it out and apart hopefully it wont take much longer i need to rebuild my dirtbike and sell it first thats an extra 1500 to my supra fund :)