Mate the RBXX motors are not the be all and end all of choice for nissan conversions, if I WAS to do a conversion on my DR the RB would be down my list , including the venerable RB26. I'd look at a 1/2jz or a 1uzfe with a pair of snails on board for good measure as all these motors are typically Toyota over engineered and are excellent power producers with even minor bolt on mods. But as I said no plans to swap my FJ out of my DR for as far as I'm concerned the FJ is the best production engine Nissan has ever produced;). Ok bring it on
P.S. no drugs for me, get tested at work lol.