NA RB20......

[Ricer240sx]

yeah, so i have always wanted to build an N/A car, and i have this RB20 sitting in my shed that is far from complete and needs a rebuild....anyone know what it would take to convert it to n/a?? they did come na correct? if so i would probably either need a ECU and harness form an NA modle or a stand alone with its own harness and then custom/jDm TyTe manifold and whatnot, but anyone have anymore info/help on the subject?? anything would be much appreciated!!!

[Imissmyturbo]

I am not an NA expert but when building an NA motor you want to keep things light + balanced. Have the crank/flywheel/balanced. Look into lightweight pistons + rods. I would go aleast 11:1 CR. The cams should be upgraded to a good bumpy overlaping cam. (Not sure where to go for those). I would also look into getting light valves. You may be able to rev to the sky on the stock springs with a lighter valve. An RB25DE exhaust manifold should bolt up or a header could be made. As for engine managment you shouldn't have to do too much there. As along as the stock CAS is stable at 9-10K RPM's I wouldn't mess with that too much. A simple romeditor program should do you fine for tuning.

[MysteryIncMan]

There was one on an option video i believe. It was an r32 with a N/A RB20 or 30 with ITB. The car sounded soooo good.