none of the early rbs will rev safely to 11k, its not really a good idea to rev out any rb before the series 2 r33 motors. the oil pump drive sucks and has caused catastrophic failure on a lot of the early motors. the water pump cavitates at high rpm and the turbo tends to blow up at anything more than 13psi. then there are the ring-lands, which we wont get into.

heres the first thing you dont need to rev past the factory rev limiter. i have never seen an rb dyno chart that the motor made more power beyond the factory rev limiter. its not a honda, you dont need to flog the piss outta it to get it to move. next you should buy a crank collar, n1 oil pump, n1 water pump, and get all that goodness installed. these are the parts you need to replace as they have and will fail at continuious high rpm (anything past 5k). since you've gone into the motor to fix that shit, you might as well buy new pistons and rods. gtr stuff is cheapest, but its hard to find. next replace the turbo, a 30r ought to be more than enough. get some 444cc injectors, fmic, and z32 mafs. then pick which ever fuel management system you like best, i've heard good things about the aem stuff. the stock headgasket and headstuds are good to 500whp or so, but you already tore the motor down so what the hell.

thats about it, doesnt really seem worth it does it? heres the thing about most nissans, you can add about 50-75whp on the stock shit and still be "ok". at that point you kinda have to replace everything, so the difference between 400whp and 700whp (in the case of my rb25) is literally $800. its just a bit hard to commit to 700whp.