So I've been driving the car for a week now and I'm loving the extra power of the turbo :D Peak boost has been 17PSI but this rarely happens. Most pulls will get to about 13-15PSI and significant boost isn't really building till around 4k RPM.
I'm new to the whole turbo thing so correct me if I'm wrong but I'm sure the boost characteristics are due to not having a boost controller installed. I have a manual boost controller ready to go but I wasn't sure how smart it would be to just put it on without also retuning the car so I've held back.
Handling wise I took the car up Mt Nebo/Glorious and got a really good feel for the current setup. Basically the car handle nothing like I've come to expect from an MR2. Very unstable in the rear and I had no confidence carrying any speed in the corners. I was sure the RCA's were the cause and took the rears out during the week. I wanted to get the fronts out but they were on so tight I snapped tools trying to loosen them up! But even just taking the rears out has the car feeling much more stable :)
Next on the list is removing the the wheels and suspension for some much needed attention. The wheels are pretty banged up and there's a leak on one of the rear coilovers :(