Im doing the same project for my brothers first car.
Just finished fixing the gearbox and its all up and running with pod and extracters.
He is only on his restricted so im keeping it NA for the moment but once he gets his full ill be +t'ing it for him.
Nistune was a bit expensive and I already own a licence for CROME (honda tuning program) so I wrote a script to read/write the RB30E and T maps. It also works in the free version of CROME and supports SR20DET and RB20DET so far, Planing to add more in future as I come across more ECUs.
Password to extract is "bmgjet.com"
Feel free to try it out, It doesnt do as much as nistune but its a work in progress still and iv had some success with it so far.
Its only making 115KW but the engine is a bit tired 190,000K, Was hoping for 120kwish but the SOHC must flow worse then I thought.
I was a bit disapointed since my old 1.6L NA made 125KW and my 1.2L on 21psi makes 147kw.
Crome Nissan Support Plugin0.01e.zip