Quote:
Originally Posted by ZDan
Difficult to know, as oil at 200F will be much thicker than oil at 260F. As @ GrandSport notes above, pressure isn't *flow*.
But anyway, as always, if you are worried about low oil pressure at higher temps, easy enough to go up in viscosity. From what I've seen, people are not seeing oil pressure as low 30psi even running 0w20 at 270F indicated. |
Yeah a lot of stuff starts happening with reduced thickness and lower density and viscosity of an incompressible fluid through an oil pump based on rpm.
The auto world has a weird way describing flow with the resistance to flow. Think forced induction. "I'm running 20psi." No one says "It's pushing X g/sec of airflow." 20PSI is an insane amount of airflow in my Viper. It's nothing in my NB Miata that is running a restrictor plate. It tells us absolutely nothing unless they are nearly identical engines.
Then again, the
diameter of a tire is expressed as a function of
half the
width of the mm plus the wheel size in inches. I really cant even think of a dumber way to do it. Why is not just width/height/wheel size (like old school trucks) in the same units. 750/245/17. Then you'd have standardized heights instead of 748.27mm. But I digress...
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2014 BRZ: Full track car. Gutted, caged, coilovers, AP enduro, OMP, bolt ons, aero, etc,
2013 Viper GTS : Tractive Coilovers, ACR sway bars, aero, carbon, exhaust, etc.
1992 NA Spec Miata: 1.6 + 1999 NB Spec Miata: 1.8 w/ all the goodies.
2018 GLE 63 AMG: +800hp whistling AWD TT V8 grocery getter
2016 GX460: IDK. Too reliable to sell. Too boring to use.