My Nissan standard oilpump is actually FINE!
Originally Posted by Temujin
u pulak, it's the case of using stock oil pump. unless u drive like [PIMPIN], i don't think the way u drive would be able to blow an RB30 just like that.
I am pretty sure that my engine failure was caused by oil starvation, where when high rpms are maintained, A LOT of the engine oil goes to the cylinder head and does not return quickly back into the block.
It can also be caused by the oil pickup pipe being exposed due to high G-forces during hard acceleration or cornering.
Hence the engine bearings are starved of oil, leading to friction and displacement.
Same thing occurred to the RB30 engine in the green Z31.
Highly tuned RB engines probably will benefit from a rear oil return and sump baffle.
Originally Posted by [PIMPIN]
LOL I missed the regularpart!
Actually the weakness of the stock oil pump has been exaggerated because they aren't that weak. It took me a long time to blow an engine due to stock oil pump failing and even my recent efforts on Sepang no less did not kill the oil pump and over 8000rpm was something I do a lot on the street on a regular basis as it is.
It was sustained high revs over an extended period that killed my oil pump and we're talking outstation drives, constantly maintaining a high speed not a brief flirtation with the limiter once in awhile.