I was doing some searching and came accross Mongillo Motors. Ed at Mongillo has done many rear mount turbos including a SL500. He was very interested in how I got around the electronic issues as he ended up running a stand alone Mega Suirt ECU on the SL500. We have decided to share information and he is going to give me a reccomended parts list. A couple of interesting points he made was that he strongly reccomends that I don't use an intercooler as he has done many installations and the intercooler decreased performance on lower boost applications. We also discussed turbo selection and he thinks I would be better off going with strong mid range rather than the largest possible peak HP dyno number inorder to have a car that is the most enjoyable to drive daily.

for tuning, I am considering using 55 Kompressor ECU coding and harness/sensors since this could easily handle the boost levels I am looking at. Ed feels that since I won't exceed the boost level that the 55K produces this may work. I also think this is how Karim (Kanzus) solved the tuning issue when he added a supercharger to his n/a 55 engine. The 55K ECU tuning can deal with boost in the 10-15lb range.

I will probably mount the turbo behind the rear end at the begining of the the muffler area and then use a couple of long resonated tip instead of a muffler. the only real downside to this will be losing the Anza muffler which sounds so good