You will find there's frequent oiling trouble While using the pre-1992 R32 RB26 motors, because the surface area wherever the crankshaft meets the oil pump was machined far too compact, finally resulting in oil pump failure at high rpm. This difficulty was settled in later on versions of the RB26 https://kameronqzdhf.blog2learn.com/79151140/rumored-buzz-on-nissan-skyline-engines