Well I figured now that I have the time I would give you my review on the swap.
First off my swap took almost 2 weeks, not because it was difficult but mainly because OS Giken sent me a 7mgte clutch kit instead of a 1jz (6 bolt flywheel compared to 8 bolt flywheel that the 1jz uses). So that set us back 6 days, plus the fact that my car did not have priority (side job).
I already wrote about my pedal dilemma several post before (check it out if you are interested), but Leon didn't seem to have that problem.
I went with a twin disk OS Giken clutch that requires a pull to push conversion. It's a pretty awesome piece of engineering if I might add. It eliminates the need for all those washers, snap rings, fork, etc. that the regular pull type system requries. Not to mention that it makes removal and installation of the tranny a breeze (no need to go in through the access plates). I don't want to go and just yap about details about the swap that you can easily find on this thread or on other R154 threads, but I do want to write about some things I still didn't find very clear on my research.
When we bolted the tranny to the engine and started to put it at the desired height, the tranny was making contact on the passenger side right where the tail shafts meets the case (center part of the tranny). Leon also did not have this issue probably because he went with the extension housing version.
After we fixed that issue with a little reason and persuasion, we moved onto the crossmember and mount. I had 3 different tranny mounts to try (R154, w55, and the auto). R154 bolts up to the tranny but not to the crossmember (I wrote about it earlier check it out). The W55 mount only bolts up to the tranny by 2 bolts instead of 4, but bolts right up to the crossmember. Don't even think about using the auto tranny. I went with the W55 mount but the only issue is, the crossmember is a bit offset when you try to bolt it up to the chasis. You can put some muscle behind it and bolt it up, it wont be enough to put a lot of strain on the mount. I would suggest to take it to a machine shop and elongate the holes a bit so that they are oval to give you that desired position.
After our first drive we noticed that a little heat shield would make contact with the drive shaft when you gave a some gas. It is on the passenger side close to where the drive shaft meets the tranny.
That was the bulk of the problems.
I would like to say that with the 92 sc300 shifter you will not have issues with the center console.
Post install and driving experience:
Tranny makes noise like I said before. It is loud enough for my girlfriend to say "Hey, your car sounds like it is going to break"
. If it wasn't for the fact that I heard the noise from Leon's car, I really would have thought my tranny was bad. It is an authentic 1jz tranny off a jdm mk3 supra with on 37k miles, so they told me. Good news is, Leon has reported that the noise has started to diminish. Maybe it has to due with the fact the tranny has been sitting for who knows how long. I will too be putting sound deadening material underneath the center console.
The clutch does make some noise when it is disengaged, but that is due to the multi plate design (no biggy).
It does take some muscle to shift gears but no grinds what so ever. Rev matching the gears makes things easier. As far as clutch engagement, almost like stock. The only differences are a stiffer pedal and slightly quicker engagement, but smooth non the less.
Well guy's I hope that helped.