putting a turbo on a N/A skyline Read this for a rough idea of what's involved
Good power can be had on the high compression, I'd suggest going for a bigger turbo than the R33 stocko one...with the compression being higher it spools these little ones up a tad too quick....a T04E will give you probably the same response as a factory RB25DET setup...meaning less chance of pinging at low RPM, just keep the boost about 7-8psi and you'll be fine.
Dan