7mgte to a 1jz or 2jz

[will fight for food]

ok i just got a 87 supra turbo it is a piece of crap but the body is in good shape just needs paint and a fuel pump i think but the guy said he drove the crap out of it and now it smokes and i dont know the first thing about a toyota i am a honda guy but i couldnt pass up this deal so i want to fix this motor and eventually swap it for a 1jz or 2jz so witch one is the easyest to just drop in without changing the ecu and trans i will change the mounts if i have to any ideas?

[Chambers]

Well first off, I'm going to take a wild guess and say that guy you bought it from fried the rings from revving the piss out of it.

Second, there is tons of info on 1JZ and 2JZ engine swaps out there, but I'll shed some light on it for you. There is no such thing as a easy swap, unlike a Honda where all you need for a swap is engine mounts and a harness adapter to run a diffrent ECU, a 1JZ and 2JZ swap will need a custom harness in your 87. 1986.5 to early 89 Supras' all have the same engine and body electrical harnesses, from late 89 to 92 the harnesses changed. The 1JZ-GTE was introduced into the JDM models during the latter years, so the 1JZ ECU will not be compatible with your 87 harness. Since the 2JZ came from the MKIV Supra neither early or latter harnesses will work.

Next, if you choose to do a 1JZ or 2JZ swap, you will need front cross member assembly and engine mounts from a 89+ car, the pre 89 cars have diffrent cross members and engine mounts that will not be compatible.

As for transmissions, the NA MKIII Supra came with the W58, the turbo models came with the R154 (7M-GTE and 1JZ-GTE), but both also had the same 4 spd auto. The MKIV turbo model came with the Getrag 6 spd, the 2JZ-GTE will bolt up to a R154 with the correct bell housing.

As you can see, this can get real confusing and complicated real quick, and I have bearly touched the surface. In my opinion you should pull the engine you have now, fix it, re-build it, and keep it, you can get plenty of power out of a 7M. And all the money you would spend in getting a 1JZ or 2JZ swapped in, you could refurbish your suspension and have a turbo car that handles like it was new.

Starting with a turbo car is always a plus, but make sure if you take the time to build a engine, don't cheap out on anything, a Supra is a diffrent breed, it wont survive on cheap parts.

Hope this helps, good luck.

[supramacist]

Gee.

Thought maybe I could add something here but chambers is on point.

[will fight for food]

thanks alot that really helps i think i will rebuild the one i have and do it right to get the most out of it that i can

[will fight for food]

ok now how much horse power / boost can the stock bottom end hold i just want a fast car that is an everyday driver like rebuild the 7mgte and a bigger turbo blowoff valve boost control you know that stuff

[Chambers]

Originally Posted by will fight for food

ok now how much horse power / boost can the stock bottom end hold i just want a fast car that is an everyday driver like rebuild the 7mgte and a bigger turbo blowoff valve boost control you know that stuff

I have heard of people holding decent amounts of power with the stock bottom end, sorry I don't have a number for you, but it would probably be a good idea to put new bearings and piston rings in it before turning the boost up.

You can make good power on the stock CT-26, fast enough for a daily, the money for a new turbo could go towards a better rebuild and even to rebuild your current turbo, thats just my opinion on a new turbo.

Now, if you plan to turn up the boost, new turbo or not, your going to hit fuel cut very quickly, so you will need to invest in some nice A/F controllers, MAFT Pro is a good one to start with.

Hope this helps, good luck.

[will fight for food]

ok now i have ran into a problem my gas tank is to rusted out to clean now i cant find anyone who can even get a gas tank not even the dealer does anyone no where i could find one

[Chambers]

Call your local junkyards and salvage yards, they may have a Supra there, but you may run into the same problem, the up side is that they will remove the gas tank before putting the car out for pickins. If you cant find one, I may be able to see what the local yards have, I know last week I saw a 89 with the tank in the hatch.

Other than that you can look into buying a aftermarket fuel tank, the squarish aluminum ones.

Good luck.

[toneloc87 2]

Originally Posted by Chambers

I have heard of people holding decent amounts of power with the stock bottom end, sorry I don't have a number for you, but it would probably be a good idea to put new bearings and piston rings in it before turning the boost up.

You can make good power on the stock CT-26, fast enough for a daily, the money for a new turbo could go towards a better rebuild and even to rebuild your current turbo, thats just my opinion on a new turbo.

Now, if you plan to turn up the boost, new turbo or not, your going to hit fuel cut very quickly, so you will need to invest in some nice A/F controllers, MAFT Pro is a good one to start with.

Hope this helps, good luck.

do not rebuild your old turbo. huge waste of money. they dont last long and your better off buying a new one. suprasport is coming out with a stock replacement turbo with install kit and i think they said eithier a 425hp or/ 475hp. it probably cost like $900

[Chambers]

Yea, its always better to have a professional re-build a turbo, or just buy a new one. I forgot about that kit from suprasport, that is a nice kit, I think it comes with the upgraded trim so you can pump out more horses, it seems worth the money if thats what you are looking for.