Quote:
Originally Posted by Ultramaroon
This blows my mind. I have argued with a friend, insisting to him that the difference in pressure between those two points must be insignificant. You've tested those gauges against each other to verify agreement?
Now I'm motivated to look at this myself. Unbelievable!
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The oil system isn't a closed system, right, so the oil pressure at the gauge will never be a reflection of the whole system? It doesn't tell us what is happening at the bearings, or the crank, or the heads. It isn't an average of the system or anything. Ideally, we want to know what the max pressure is, right, because the minimum pressure will always be zero in an open system, so knowing the max means we know what we have to work with? Obviously we can't know everywhere in an engine.
Doesn't the pressure drop have to be somewhat significant for oil to flow in a given direction fast enough? The difference in oil pressure will determine the flow. The closer the pressures are to each other then the slower the flow will be.
I'm pretty sure my Greddy oil pressure sensor is attached to the stock location on the front of the cover, closest to the pump, right? My Greddy oil temp sensor is attached to the main oil galley on top of the block, closest to the core of the motor, right?
How is your set up?