Oil Cooler Install Thread

[imag]

Water temp gauges have been disconnected from true water temps for years now on most cars - it doesn't surprise me that this is the same. They want people to feel comforted about the car and not get stressed when coolant temps fluctuate, so they basically fix it in a middle position once it comes up to temp. It only goes higher if it get out of range.

Anyway, I know most other car manufacturers do this - not sure if Nissan did it in the 370, but it sounds like it.

[Modshack]

Originally Posted by imag

Water temp gauges have been disconnected from true water temps for years now on most cars - it doesn't surprise me that this is the same. They want people to feel comforted about the car and not get stressed when coolant temps fluctuate, so they basically fix it in a middle position once it comes up to temp. It only goes higher if it get out of range.

Anyway, I know most other car manufacturers do this - not sure if Nissan did it in the 370, but it sounds like it.

This appears to be the case. #7 LED lights up at 155 degrees. There is no change from there up to 185 degree operating temps..

[wstar]

Originally Posted by Modshack

This appears to be the case. #7 LED lights up at 155 degrees. There is no change from there up to 185 degree operating temps..

Yeah mine never moves off of that dot either (looks like the second one below the center mark to me), regardless of oil temps. Apparently the radiator is sized well (perhaps even overdone all things considered) for the amount of heat going into the coolant, there just isn't enough heat transfer from the oil to the coolant inside the engine block to get much oil cooling done, or we'd see the water temps go up when the oil gets extreme.

[Modshack]

Originally Posted by wstar

Yeah mine never moves off of that dot either (looks like the second one below the center mark to me), regardless of oil temps. Apparently the radiator is sized well (perhaps even overdone all things considered) for the amount of heat going into the coolant, there just isn't enough heat transfer from the oil to the coolant inside the engine block to get much oil cooling done, or we'd see the water temps go up when the oil gets extreme.

.... the point was that the Water temp "Gauge" isn't a real indcator of temperature as discussed above. On my old Audi TT, there was a "smoothed" output to the gauge that essentially left it in the middle except for extremes..
The Z appears to be the same, and yes, the water cooling system seems to have enough overhead to handle most conditions which is good.....Just don't count on the indicator! My scangauge accesses the actual temp sensor output rather than the smoothed output and seems accurate to the degree. This car runs pretty cool water wise...