Since there isn't a motor section and it does have to do with a turbo'd engine I figured I'd post this here. I've been asking this question in regards to these two engines and the possibility of swapping the heads in hopes in using the factory turbo'd parts on the 2.0L MR. Since the turbo manifold isn't a direct swap between both MR siblings from one engine to the other some people suggested (in theory) to "simply" swap the MR16DDT's head over to the MR20DE to be able to utilize it's turbo functions rather than fabricate your own turbo setup.
Now, I am more inclined to using factory parts being that there is R&D and a lot of backing by Nissan, thus giving as much reliability in engine survival. Rather than going small snail and low PSI, I'd take the parts out of a JUKE/NISMO/NISMO RS and make a more power boosted platform in the Sentra thus, swapping to a 6sp MT as well so, if this theory is along the lines of realistic I will consider that route rather than just bolt-ons or MR20 engine build and run the risk of blowing it up with a custom turbo setup.
Now, I am more inclined to using factory parts being that there is R&D and a lot of backing by Nissan, thus giving as much reliability in engine survival. Rather than going small snail and low PSI, I'd take the parts out of a JUKE/NISMO/NISMO RS and make a more power boosted platform in the Sentra thus, swapping to a 6sp MT as well so, if this theory is along the lines of realistic I will consider that route rather than just bolt-ons or MR20 engine build and run the risk of blowing it up with a custom turbo setup.