Can't see why not. Don't listen to people that say silly things like supporting mods etc. Just bolt it on and boost away into the sunset. rb25s were made for turbos after all.
Update time. Had a two week windrow whee I could borrow a car, decided on using neo head and a good running bottom End. slapped together and tuned 305rwkw at just over 5000 rpm. heaps of torque and awesome on the street. Car now really stalls to 2500 so that will help alot. Currently at AIR waiting, about to run it down the strip. So to recap only mod is rb30 bottom end compared to last time running 12.7 at 114.4 with a 2.1 60ft. Will update later.
It's a good question, as for the sake of a new belt it would still save money running the cheaper balancer. Not sure what the differences are myself, but I have a neo balancer on my rb30 crank.
They look good, but couldn't the fuel leak through the actual thread? Unless the nylic nut seals it off? I am going to machine up something similar, but solid so there are no chance of leaks. Well take some pics when done, hopefully tomorrow.
What car has an ecu out put for an electric fan that doesn't exist? I assume you have a different radiator also, get a fitting welded into it and screw in a sensor.