You will find there's prevalent oiling problem Along with the pre-1992 R32 RB26 motors, as being the surface where by the crankshaft satisfies the oil pump was machined as well little, sooner or later leading to oil pump failure at significant rpm. This difficulty was resolved in afterwards variations from https://buyrb26dettengine26789.tkzblog.com/31048147/a-secret-weapon-for-nissan-rb26-engine-for-sale