ok one question I had asked a while ago and no one replied. Is it possible to have a 7m-gte mkIII with a 6-speed mkIV tranny? I know at least a custom driveshaft would be needed. Would there be a problem with using the stock ma70 LSD or would the mkIV rear end be better(geering ratios, fitment)? P.S. is there anywhere where I can find a ratchet shifter for either the R-154 or 6-speed?

I have read forums or reviews that people fried their turbos because they didn't adjust them correctly or something. What are some things to look out for when putting everything together?

When doing a JDM swap, at what point can you use USDM products? Basicly what I'm asking is do you have to convert the entire car to JDM?

I had an idea where making a TT but making them parallel. The plan was to make a header where the first three cyl. went to one turbo and the back three to another. After that, would result in a "true dual" exaust. Realistic or Pipe Dream (pun intended)?

You must be loaded because doing half of what you want will cost a small fortune. No one replyed to the question probably because if you have the money you would have done it already, if you have to ask then you probably do not have what it takes. The Getrag will not bolt up to the 7M without a custom bellhousing and trans brace and a few smaller clutch parts. Honestly why do you want a 6-speed anyway, just to say you have six gears to the local honda crowd? Have you ever blown up an R-154 or had any reason to upgrade? Fitting the MKIV rear end would be 10x the hassle than it's worth since you'll never break a Toyota 8" rear gear and there are more gear ratios and different LSD's than you can shake a stick at. The front/back sequential shifters are rare and hard to get, cost ALOT of money, atleast double the price of a brand new C's short shifter which go for $300. Twin turbos have been done on the 7M more than a few times, search Supraforums for tons of pics and threads. Blitz and another company both made a TT kit and there are a few floating around still if you have a couple thousand to dump into it. I've seen the used SS TT manifolds sell for $1000 alone. Then you still have to find and fit two turbos, oil lines, a TT down pipe, TT intake and IC pipes, the list goes on. What do you mean convert to a JDM car? Besides the RHD it's the exact same car with some tiny details that people here pay a fortune for. Buy some bubble front marker lights, yellow fogs, darker tail lights, rear marker light delete trim and your car will look exactly like a JDM MKIII from the outside. Don't take any of this the wrong way because you wanted an answer and that's what your getting. :smile: Good luck with the project, just read and research all you can before you actually make any purchases. If you have loads of cash and talent anything is possable but if you don't I suggest you stick to the tried and true methods. :bigthumb:

Don't take any of this the wrong way because you wanted an answer and that's what your getting. :smile:

If I come up with an idea that is completetly hair brained, I would expect someone to tell me so. Thank you very much for giving me your time to explain all of this. I was looking for answers and answers are what I recieved.

As far as the JDM questions goes, I was talking about a JDM motor swap. I know the ECU has to be changed but what about everything eles. (same manifold, turbo, intake, motor mounts, things like that)

I didn't get anything about the turbo adjustments if there are any to do. I have a ct-26 off ebay that I plan on rebuilding.

thanks again projectsupramk3.

Ahh ok sorry about that, I thought you meant converting the whole car to JDM. The engine swap is very simple, very straight foward. Is your MKIII turbo already or are you doing a turbo swap? If it's already turbo then you simply use your current electronics and ECU, just swap the motor out. If you'r doing a turbo conversion you'll need to find a USDM harness and ECU, Ignitor, IC and piping, R-154 transmission, trans brace, and driveshaft, turbo tachometer, and a few other parts small I'm probably leaving out. You can use the JDM ECU but it's mapped slightly different (also has speed cut so you would need a SCD/SLD) and it would just be best to find one here from the same car you got the harness from. Everything mechanical is the same with the exception of the motor mounts that changed in 89+. Also you can't adjust the turbo, you can adjust the waste gate by shimming it slightly which has been covered many many times, or you can adjust the pressure the WG sees by using a boost controller. Why wouldn't you just use the CT-26 that comes with the JDM engine and have it upgraded if your going to do that? Save the money for something else on the car. If you're going to rebuild it you might as well upgrade it, a 60-1 is the most common and rightfully so.

hmm....thats alot of work for...?
i would think a straight 2jz engine swap and turbo upgrades would be close to the same power and price.but thats just me.

yep, it is a n/a to turbo swap found the motor on www.jazzmotorsports.com/. No I'm not rolling in the moneys. I should actually start my 88 supra project (my first project) some time next year once I get back in the military (long story). Right now I'm in the "information collection phase". Finding out as much as possible until then and it keeps me from spending money elsewhere.

Just in case you need another source.

www.jdm-motor-engines.com