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holy shit its 2020
1. SR oil pumps fail, even with all original engines. I have a friend who did the swap back in 2001 using an S15 engine no less. He drove that car daily until 2018.
In 17' He asks me about this noise his engine was making. The VTC rattle, of course, getting worse. He already had a next VTC gear to swap on, but when he started the engine I heard it at idle in such a different way than they do when they are bad. It was like the oil couldn't stay inside it. I realized the engine must have 200k on it and told him to change the oil pump, right away.
A year later oil pump failed, toasted the bottom end while cruising, engine is trash now, gone.
2. 'higher level engines' (cough* "serious" racing) don't set oil pressure, they set oil flow. Pressure is just a consequence and not a measurable quantity concerning oil flow. e.g. cold oil, higher pressure, less overall flow, that sort of nature/relationship may go against common sense to some.
3. Oil coolers are great but there is one thing I warn everybody about. I've seen more than one engine failure because an oil cooler line got pinched. For whatever reason people love to use that bendy rubber braided hose shit (cheap?).
If you really love your engine, you will use the stiffly teflon style lines that do not bend or close up easily.
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